Merge 9ba18e400d ("bus: mhi: host: Fix conflict between power_up and SYSERR") into android12-5.10-lts

Steps on the way to 5.10.239

Resolves merge conflicts in:
	fs/nfsd/nfssvc.c

Change-Id: I6ec7fe81e413b70f489b1ffc928de97aee99d433
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Makefile

@@ -602,8 +602,7 @@ else
 CLANG_FLAGS	+= -fno-integrated-as
 endif
 CLANG_FLAGS	+= -Werror=unknown-warning-option
-KBUILD_CFLAGS	+= $(CLANG_FLAGS)
-KBUILD_AFLAGS	+= $(CLANG_FLAGS)
+KBUILD_CPPFLAGS	+= $(CLANG_FLAGS)
 export CLANG_FLAGS
 endif
 
@@ -1099,8 +1098,8 @@ LDFLAGS_vmlinux += --orphan-handling=warn
 endif
 
 # Align the bit size of userspace programs with the kernel
-KBUILD_USERCFLAGS  += $(filter -m32 -m64 --target=%, $(KBUILD_CFLAGS))
-KBUILD_USERLDFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CFLAGS))
+KBUILD_USERCFLAGS  += $(filter -m32 -m64 --target=%, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS))
+KBUILD_USERLDFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS))
 
 # userspace programs are linked via the compiler, use the correct linker
 ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_LD_IS_LLD),yy)

arch/arm/mach-omap2/pmic-cpcap.c

@@ -264,7 +264,11 @@ int __init omap4_cpcap_init(void)
 
 static int __init cpcap_late_init(void)
 {
-	omap4_vc_set_pmic_signaling(PWRDM_POWER_RET);
+	if (!of_find_compatible_node(NULL, NULL, "motorola,cpcap"))
+		return 0;
+
+	if (soc_is_omap443x() || soc_is_omap446x() || soc_is_omap447x())
+		omap4_vc_set_pmic_signaling(PWRDM_POWER_RET);
 
 	return 0;
 }

arch/arm/mm/ioremap.c

@@ -483,7 +483,5 @@ void __init early_ioremap_init(void)
 bool arch_memremap_can_ram_remap(resource_size_t offset, size_t size,
 				 unsigned long flags)
 {
-	unsigned long pfn = PHYS_PFN(offset);
-
-	return memblock_is_map_memory(pfn);
+	return memblock_is_map_memory(offset);
 }

arch/arm64/xen/hypercall.S

@@ -84,7 +84,26 @@ HYPERCALL1(tmem_op);
 HYPERCALL1(platform_op_raw);
 HYPERCALL2(multicall);
 HYPERCALL2(vm_assist);
-HYPERCALL3(dm_op);
+
+SYM_FUNC_START(HYPERVISOR_dm_op)
+	mov x16, #__HYPERVISOR_dm_op;	\
+	/*
+	 * dm_op hypercalls are issued by the userspace. The kernel needs to
+	 * enable access to TTBR0_EL1 as the hypervisor would issue stage 1
+	 * translations to user memory via AT instructions. Since AT
+	 * instructions are not affected by the PAN bit (ARMv8.1), we only
+	 * need the explicit uaccess_enable/disable if the TTBR0 PAN emulation
+	 * is enabled (it implies that hardware UAO and PAN disabled).
+	 */
+	uaccess_ttbr0_enable x6, x7, x8
+	hvc XEN_IMM
+
+	/*
+	 * Disable userspace access from kernel once the hyp call completed.
+	 */
+	uaccess_ttbr0_disable x6, x7
+	ret
+SYM_FUNC_END(HYPERVISOR_dm_op);
 
 SYM_FUNC_START(privcmd_call)
 	mov x16, x0

arch/mips/Makefile

@@ -110,7 +110,7 @@ endif
 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
 # set ".set hardfloat" in all files which manipulate floating point registers.
 #
-ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
+ifneq ($(call cc-option,$(cflags-y) -Wa$(comma)-msoft-float,),)
 	cflags-y		+= -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
 endif
 
@@ -153,7 +153,7 @@ cflags-y += -fno-stack-check
 #
 # Avoid this by explicitly disabling that assembler behaviour.
 #
-cflags-y += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
+cflags-y += $(call cc-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
 
 #
 # CPU-dependent compiler/assembler options for optimization.
@@ -319,7 +319,7 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
 KBUILD_LDFLAGS		+= -m $(ld-emul)
 
 ifdef CONFIG_MIPS
-CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
+CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
 	egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
 	sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
 endif

arch/mips/loongson2ef/Platform

@@ -28,7 +28,7 @@ cflags-$(CONFIG_CPU_LOONGSON2F) += \
 # binutils does not merge support for the flag then we can revisit & remove
 # this later - for now it ensures vendor toolchains don't cause problems.
 #
-cflags-$(CONFIG_CPU_LOONGSON2EF)	+= $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
+cflags-$(CONFIG_CPU_LOONGSON2EF)	+= $(call cc-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
 
 # Enable the workarounds for Loongson2f
 ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS

arch/powerpc/include/asm/vas.h

@@ -162,6 +162,9 @@ int vas_copy_crb(void *crb, int offset);
  */
 int vas_paste_crb(struct vas_window *win, int offset, bool re);
 
+void vas_win_paste_addr(struct vas_window *window, u64 *addr,
+			int *len);
+
 /*
  * Register / unregister coprocessor type to VAS API which will be exported
  * to user space. Applications can use this API to open / close window

arch/powerpc/platforms/Kconfig

@@ -20,6 +20,7 @@ source "arch/powerpc/platforms/embedded6xx/Kconfig"
 source "arch/powerpc/platforms/44x/Kconfig"
 source "arch/powerpc/platforms/40x/Kconfig"
 source "arch/powerpc/platforms/amigaone/Kconfig"
+source "arch/powerpc/platforms/book3s/Kconfig"
 
 config KVM_GUEST
 	bool "KVM Guest support"

arch/powerpc/platforms/Makefile

@@ -22,3 +22,4 @@ obj-$(CONFIG_PPC_CELL)		+= cell/
 obj-$(CONFIG_PPC_PS3)		+= ps3/
 obj-$(CONFIG_EMBEDDED6xx)	+= embedded6xx/
 obj-$(CONFIG_AMIGAONE)		+= amigaone/
+obj-$(CONFIG_PPC_BOOK3S)	+= book3s/

arch/powerpc/platforms/book3s/Kconfig

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+config PPC_VAS
+	bool "IBM Virtual Accelerator Switchboard (VAS)"
+	depends on (PPC_POWERNV || PPC_PSERIES) && PPC_64K_PAGES
+	default y
+	help
+	  This enables support for IBM Virtual Accelerator Switchboard (VAS).
+
+	  VAS devices are found in POWER9-based and later systems, they
+	  provide access to accelerator coprocessors such as NX-GZIP and
+	  NX-842. This config allows the kernel to use NX-842 accelerators,
+	  and user-mode APIs for the NX-GZIP accelerator on POWER9 PowerNV
+	  and POWER10 PowerVM platforms.
+
+	  If unsure, say "N".

arch/powerpc/platforms/book3s/Makefile

@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_PPC_VAS)	+= vas-api.o

arch/powerpc/platforms/book3s/vas-api.c

@@ -10,9 +10,9 @@
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
+#include <linux/io.h>
 #include <asm/vas.h>
 #include <uapi/asm/vas-api.h>
-#include "vas.h"
 
 /*
  * The driver creates the device node that can be used as follows:
@@ -162,6 +162,15 @@ static int coproc_mmap(struct file *fp, struct vm_area_struct *vma)
 		return -EINVAL;
 	}
 
+	/*
+	 * Map complete page to the paste address. So the user
+	 * space should pass 0ULL to the offset parameter.
+	 */
+	if (vma->vm_pgoff) {
+		pr_debug("Page offset unsupported to map paste address\n");
+		return -EINVAL;
+	}
+
 	/* Ensure instance has an open send window */
 	if (!txwin) {
 		pr_err("%s(): No send window open?\n", __func__);

arch/powerpc/platforms/powernv/Kconfig

@@ -33,20 +33,6 @@ config PPC_MEMTRACE
 	  Enabling this option allows for the removal of memory (RAM)
 	  from the kernel mappings to be used for hardware tracing.
 
-config PPC_VAS
-	bool "IBM Virtual Accelerator Switchboard (VAS)"
-	depends on PPC_POWERNV && PPC_64K_PAGES
-	default y
-	help
-	  This enables support for IBM Virtual Accelerator Switchboard (VAS).
-
-	  VAS allows accelerators in co-processors like NX-GZIP and NX-842
-	  to be accessible to kernel subsystems and user processes.
-
-	  VAS adapters are found in POWER9 based systems.
-
-	  If unsure, say N.
-
 config SCOM_DEBUGFS
 	bool "Expose SCOM controllers via debugfs"
 	depends on DEBUG_FS

arch/powerpc/platforms/powernv/Makefile

@@ -18,7 +18,7 @@ obj-$(CONFIG_MEMORY_FAILURE)	+= opal-memory-errors.o
 obj-$(CONFIG_OPAL_PRD)	+= opal-prd.o
 obj-$(CONFIG_PERF_EVENTS) += opal-imc.o
 obj-$(CONFIG_PPC_MEMTRACE)	+= memtrace.o
-obj-$(CONFIG_PPC_VAS)	+= vas.o vas-window.o vas-debug.o vas-fault.o vas-api.o
+obj-$(CONFIG_PPC_VAS)	+= vas.o vas-window.o vas-debug.o vas-fault.o
 obj-$(CONFIG_OCXL_BASE)	+= ocxl.o
 obj-$(CONFIG_SCOM_DEBUGFS) += opal-xscom.o
 obj-$(CONFIG_PPC_SECURE_BOOT) += opal-secvar.o

arch/powerpc/platforms/powernv/vas.h

@@ -437,8 +437,6 @@ extern irqreturn_t vas_fault_handler(int irq, void *dev_id);
 extern void vas_return_credit(struct vas_window *window, bool tx);
 extern struct vas_window *vas_pswid_to_window(struct vas_instance *vinst,
 						uint32_t pswid);
-extern void vas_win_paste_addr(struct vas_window *window, u64 *addr,
-					int *len);
 
 static inline int vas_window_pid(struct vas_window *window)
 {

arch/x86/boot/compressed/Makefile

@@ -49,7 +49,7 @@ KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
 KBUILD_CFLAGS += -D__DISABLE_EXPORTS
 # Disable relocation relaxation in case the link is not PIE.
-KBUILD_CFLAGS += $(call as-option,-Wa$(comma)-mrelax-relocations=no)
+KBUILD_CFLAGS += $(call cc-option,-Wa$(comma)-mrelax-relocations=no)
 KBUILD_CFLAGS += -include $(srctree)/include/linux/hidden.h
 
 # sev-es.c indirectly inludes inat-table.h which is generated during

arch/x86/kernel/ioport.c

@@ -33,8 +33,9 @@ void io_bitmap_share(struct task_struct *tsk)
 	set_tsk_thread_flag(tsk, TIF_IO_BITMAP);
 }
 
-static void task_update_io_bitmap(struct task_struct *tsk)
+static void task_update_io_bitmap(void)
 {
+	struct task_struct *tsk = current;
 	struct thread_struct *t = &tsk->thread;
 
 	if (t->iopl_emul == 3 || t->io_bitmap) {
@@ -54,7 +55,12 @@ void io_bitmap_exit(struct task_struct *tsk)
 	struct io_bitmap *iobm = tsk->thread.io_bitmap;
 
 	tsk->thread.io_bitmap = NULL;
-	task_update_io_bitmap(tsk);
+	/*
+	 * Don't touch the TSS when invoked on a failed fork(). TSS
+	 * reflects the state of @current and not the state of @tsk.
+	 */
+	if (tsk == current)
+		task_update_io_bitmap();
 	if (iobm && refcount_dec_and_test(&iobm->refcnt))
 		kfree(iobm);
 }
@@ -192,8 +198,7 @@ SYSCALL_DEFINE1(iopl, unsigned int, level)
 	}
 
 	t->iopl_emul = level;
-	task_update_io_bitmap(current);
-
+	task_update_io_bitmap();
 	return 0;
 }
 

arch/x86/kernel/process.c

@@ -143,6 +143,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg,
 	frame->ret_addr = (unsigned long) ret_from_fork;
 	p->thread.sp = (unsigned long) fork_frame;
 	p->thread.io_bitmap = NULL;
+	clear_tsk_thread_flag(p, TIF_IO_BITMAP);
 	p->thread.iopl_warn = 0;
 	memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
 
@@ -401,6 +402,11 @@ void native_tss_update_io_bitmap(void)
 	} else {
 		struct io_bitmap *iobm = t->io_bitmap;
 
+		if (WARN_ON_ONCE(!iobm)) {
+			clear_thread_flag(TIF_IO_BITMAP);
+			native_tss_invalidate_io_bitmap();
+		}
+
 		/*
 		 * Only copy bitmap data when the sequence number differs. The
 		 * update time is accounted to the incoming task.

drivers/bus/mhi/host/pm.c

@@ -454,6 +454,7 @@ static void mhi_pm_disable_transition(struct mhi_controller *mhi_cntrl,
 	struct mhi_cmd *mhi_cmd;
 	struct mhi_event_ctxt *er_ctxt;
 	struct device *dev = &mhi_cntrl->mhi_dev->dev;
+	bool reset_device = false;
 	int ret, i;
 
 	dev_dbg(dev, "Transitioning from PM state: %s to: %s\n",
@@ -485,8 +486,23 @@ static void mhi_pm_disable_transition(struct mhi_controller *mhi_cntrl,
 		return;
 	}
 
-	/* Trigger MHI RESET so that the device will not access host memory */
 	if (MHI_REG_ACCESS_VALID(prev_state)) {
+		/*
+		 * If the device is in PBL or SBL, it will only respond to
+		 * RESET if the device is in SYSERR state. SYSERR might
+		 * already be cleared at this point.
+		 */
+		enum mhi_state cur_state = mhi_get_mhi_state(mhi_cntrl);
+		enum mhi_ee_type cur_ee = mhi_get_exec_env(mhi_cntrl);
+
+		if (cur_state == MHI_STATE_SYS_ERR)
+			reset_device = true;
+		else if (cur_ee != MHI_EE_PBL && cur_ee != MHI_EE_SBL)
+			reset_device = true;
+	}
+
+	/* Trigger MHI RESET so that the device will not access host memory */
+	if (reset_device) {
 		u32 in_reset = -1;
 		unsigned long timeout = msecs_to_jiffies(mhi_cntrl->timeout_ms);
 

drivers/crypto/marvell/cesa/cesa.c

@@ -94,7 +94,7 @@ static int mv_cesa_std_process(struct mv_cesa_engine *engine, u32 status)
 
 static int mv_cesa_int_process(struct mv_cesa_engine *engine, u32 status)
 {
-	if (engine->chain.first && engine->chain.last)
+	if (engine->chain_hw.first && engine->chain_hw.last)
 		return mv_cesa_tdma_process(engine, status);
 
 	return mv_cesa_std_process(engine, status);

drivers/crypto/marvell/cesa/cesa.h

@@ -439,8 +439,10 @@ struct mv_cesa_dev {
  *			SRAM
  * @queue:		fifo of the pending crypto requests
  * @load:		engine load counter, useful for load balancing
- * @chain:		list of the current tdma descriptors being processed
- *			by this engine.
+ * @chain_hw:		list of the current tdma descriptors being processed
+ *			by the hardware.
+ * @chain_sw:		list of the current tdma descriptors that will be
+ *			submitted to the hardware.
  * @complete_queue:	fifo of the processed requests by the engine
  *
  * Structure storing CESA engine information.
@@ -459,7 +461,8 @@ struct mv_cesa_engine {
 	struct gen_pool *pool;
 	struct crypto_queue queue;
 	atomic_t load;
-	struct mv_cesa_tdma_chain chain;
+	struct mv_cesa_tdma_chain chain_hw;
+	struct mv_cesa_tdma_chain chain_sw;
 	struct list_head complete_queue;
 	int irq;
 };

drivers/crypto/marvell/cesa/tdma.c

@@ -38,6 +38,15 @@ void mv_cesa_dma_step(struct mv_cesa_req *dreq)
 {
 	struct mv_cesa_engine *engine = dreq->engine;
 
+	spin_lock_bh(&engine->lock);
+	if (engine->chain_sw.first == dreq->chain.first) {
+		engine->chain_sw.first = NULL;
+		engine->chain_sw.last = NULL;
+	}
+	engine->chain_hw.first = dreq->chain.first;
+	engine->chain_hw.last = dreq->chain.last;
+	spin_unlock_bh(&engine->lock);
+
 	writel_relaxed(0, engine->regs + CESA_SA_CFG);
 
 	mv_cesa_set_int_mask(engine, CESA_SA_INT_ACC0_IDMA_DONE);
@@ -96,25 +105,27 @@ void mv_cesa_dma_prepare(struct mv_cesa_req *dreq,
 void mv_cesa_tdma_chain(struct mv_cesa_engine *engine,
 			struct mv_cesa_req *dreq)
 {
-	if (engine->chain.first == NULL && engine->chain.last == NULL) {
-		engine->chain.first = dreq->chain.first;
-		engine->chain.last  = dreq->chain.last;
-	} else {
-		struct mv_cesa_tdma_desc *last;
+	struct mv_cesa_tdma_desc *last = engine->chain_sw.last;
 
-		last = engine->chain.last;
+	/*
+	 * Break the DMA chain if the request being queued needs the IV
+	 * regs to be set before lauching the request.
+	 */
+	if (!last || dreq->chain.first->flags & CESA_TDMA_SET_STATE)
+		engine->chain_sw.first = dreq->chain.first;
+	else {
 		last->next = dreq->chain.first;
-		engine->chain.last = dreq->chain.last;
-
-		/*
-		 * Break the DMA chain if the CESA_TDMA_BREAK_CHAIN is set on
-		 * the last element of the current chain, or if the request
-		 * being queued needs the IV regs to be set before lauching
-		 * the request.
-		 */
-		if (!(last->flags & CESA_TDMA_BREAK_CHAIN) &&
-		    !(dreq->chain.first->flags & CESA_TDMA_SET_STATE))
-			last->next_dma = cpu_to_le32(dreq->chain.first->cur_dma);
+		last->next_dma = cpu_to_le32(dreq->chain.first->cur_dma);
+	}
+	last = dreq->chain.last;
+	engine->chain_sw.last = last;
+	/*
+	 * Break the DMA chain if the CESA_TDMA_BREAK_CHAIN is set on
+	 * the last element of the current chain.
+	 */
+	if (last->flags & CESA_TDMA_BREAK_CHAIN) {
+		engine->chain_sw.first = NULL;
+		engine->chain_sw.last = NULL;
 	}
 }
 
@@ -127,7 +138,7 @@ int mv_cesa_tdma_process(struct mv_cesa_engine *engine, u32 status)
 
 	tdma_cur = readl(engine->regs + CESA_TDMA_CUR);
 
-	for (tdma = engine->chain.first; tdma; tdma = next) {
+	for (tdma = engine->chain_hw.first; tdma; tdma = next) {
 		spin_lock_bh(&engine->lock);
 		next = tdma->next;
 		spin_unlock_bh(&engine->lock);
@@ -149,12 +160,12 @@ int mv_cesa_tdma_process(struct mv_cesa_engine *engine, u32 status)
 								 &backlog);
 
 			/* Re-chaining to the next request */
-			engine->chain.first = tdma->next;
+			engine->chain_hw.first = tdma->next;
 			tdma->next = NULL;
 
 			/* If this is the last request, clear the chain */
-			if (engine->chain.first == NULL)
-				engine->chain.last  = NULL;
+			if (engine->chain_hw.first == NULL)
+				engine->chain_hw.last  = NULL;
 			spin_unlock_bh(&engine->lock);
 
 			ctx = crypto_tfm_ctx(req->tfm);

drivers/gpu/drm/amd/display/dc/dcn20/Makefile

@@ -10,7 +10,7 @@ DCN20 = dcn20_resource.o dcn20_init.o dcn20_hwseq.o dcn20_dpp.o dcn20_dpp_cm.o d
 DCN20 += dcn20_dsc.o
 
 ifdef CONFIG_X86
-CFLAGS_$(AMDDALPATH)/dc/dcn20/dcn20_resource.o := -mhard-float -msse
+CFLAGS_$(AMDDALPATH)/dc/dcn20/dcn20_resource.o := $(if $(CONFIG_CC_IS_GCC), -mhard-float) -msse
 endif
 
 ifdef CONFIG_PPC64

drivers/gpu/drm/amd/display/dc/dcn21/Makefile

@@ -6,7 +6,7 @@ DCN21 = dcn21_init.o dcn21_hubp.o dcn21_hubbub.o dcn21_resource.o \
 	 dcn21_hwseq.o dcn21_link_encoder.o
 
 ifdef CONFIG_X86
-CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o := -mhard-float -msse
+CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o := $(if $(CONFIG_CC_IS_GCC), -mhard-float) -msse
 endif
 
 ifdef CONFIG_PPC64

drivers/gpu/drm/amd/display/dc/dml/Makefile

@@ -26,7 +26,8 @@
 # subcomponents.
 
 ifdef CONFIG_X86
-dml_ccflags := -mhard-float -msse
+dml_ccflags-$(CONFIG_CC_IS_GCC) := -mhard-float
+dml_ccflags := $(dml_ccflags-y) -msse
 endif
 
 ifdef CONFIG_PPC64

drivers/media/common/videobuf2/videobuf2-dma-sg.c

@@ -465,7 +465,7 @@ vb2_dma_sg_dmabuf_ops_begin_cpu_access(struct dma_buf *dbuf,
 	struct vb2_dma_sg_buf *buf = dbuf->priv;
 	struct sg_table *sgt = buf->dma_sgt;
 
-	dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir);
+	dma_sync_sgtable_for_cpu(buf->dev, sgt, buf->dma_dir);
 	return 0;
 }
 
@@ -476,7 +476,7 @@ vb2_dma_sg_dmabuf_ops_end_cpu_access(struct dma_buf *dbuf,
 	struct vb2_dma_sg_buf *buf = dbuf->priv;
 	struct sg_table *sgt = buf->dma_sgt;
 
-	dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir);
+	dma_sync_sgtable_for_device(buf->dev, sgt, buf->dma_dir);
 	return 0;
 }
 

drivers/media/i2c/ov8856.c

@@ -1663,8 +1663,8 @@ static int ov8856_get_hwcfg(struct ov8856 *ov8856, struct device *dev)
 	if (!is_acpi_node(fwnode)) {
 		ov8856->xvclk = devm_clk_get(dev, "xvclk");
 		if (IS_ERR(ov8856->xvclk)) {
-			dev_err(dev, "could not get xvclk clock (%pe)\n",
-				ov8856->xvclk);
+			dev_err_probe(dev, PTR_ERR(ov8856->xvclk),
+				      "could not get xvclk clock\n");
 			return PTR_ERR(ov8856->xvclk);
 		}
 
@@ -1758,11 +1758,8 @@ static int ov8856_probe(struct i2c_client *client)
 		return -ENOMEM;
 
 	ret = ov8856_get_hwcfg(ov8856, &client->dev);
-	if (ret) {
-		dev_err(&client->dev, "failed to get HW configuration: %d",
-			ret);
+	if (ret)
 		return ret;
-	}
 
 	v4l2_i2c_subdev_init(&ov8856->sd, client, &ov8856_subdev_ops);
 

drivers/media/platform/qcom/venus/core.c

@@ -290,7 +290,7 @@ static int venus_probe(struct platform_device *pdev)
 
 	ret = v4l2_device_register(dev, &core->v4l2_dev);
 	if (ret)
-		goto err_core_deinit;
+		goto err_hfi_destroy;
 
 	platform_set_drvdata(pdev, core);
 
@@ -322,24 +322,24 @@ static int venus_probe(struct platform_device *pdev)
 
 	ret = venus_enumerate_codecs(core, VIDC_SESSION_TYPE_DEC);
 	if (ret)
-		goto err_venus_shutdown;
+		goto err_core_deinit;
 
 	ret = venus_enumerate_codecs(core, VIDC_SESSION_TYPE_ENC);
 	if (ret)
-		goto err_venus_shutdown;
+		goto err_core_deinit;
 
 	ret = pm_runtime_put_sync(dev);
 	if (ret) {
 		pm_runtime_get_noresume(dev);
-		goto err_dev_unregister;
+		goto err_core_deinit;
 	}
 
 	venus_dbgfs_init(core);
 
 	return 0;
 
-err_dev_unregister:
-	v4l2_device_unregister(&core->v4l2_dev);
+err_core_deinit:
+	hfi_core_deinit(core, false);
 err_venus_shutdown:
 	venus_shutdown(core);
 err_firmware_deinit:
@@ -350,9 +350,9 @@ err_runtime_disable:
 	pm_runtime_put_noidle(dev);
 	pm_runtime_disable(dev);
 	pm_runtime_set_suspended(dev);
+	v4l2_device_unregister(&core->v4l2_dev);
+err_hfi_destroy:
 	hfi_destroy(core);
-err_core_deinit:
-	hfi_core_deinit(core, false);
 err_core_put:
 	if (core->pm_ops->core_put)
 		core->pm_ops->core_put(core);

drivers/media/test-drivers/vidtv/vidtv_channel.c

@@ -497,7 +497,7 @@ free_sdt:
 	vidtv_psi_sdt_table_destroy(m->si.sdt);
 free_pat:
 	vidtv_psi_pat_table_destroy(m->si.pat);
-	return 0;
+	return -EINVAL;
 }
 
 void vidtv_channel_si_destroy(struct vidtv_mux *m)

drivers/media/test-drivers/vivid/vivid-vid-cap.c

@@ -962,8 +962,8 @@ int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection
 			if (dev->has_compose_cap) {
 				v4l2_rect_set_min_size(compose, &min_rect);
 				v4l2_rect_set_max_size(compose, &max_rect);
-				v4l2_rect_map_inside(compose, &fmt);
 			}
+			v4l2_rect_map_inside(compose, &fmt);
 			dev->fmt_cap_rect = fmt;
 			tpg_s_buf_height(&dev->tpg, fmt.height);
 		} else if (dev->has_compose_cap) {

drivers/media/usb/dvb-usb/cxusb.c

@@ -119,9 +119,8 @@ static void cxusb_gpio_tuner(struct dvb_usb_device *d, int onoff)
 
 	o[0] = GPIO_TUNER;
 	o[1] = onoff;
-	cxusb_ctrl_msg(d, CMD_GPIO_WRITE, o, 2, &i, 1);
 
-	if (i != 0x01)
+	if (!cxusb_ctrl_msg(d, CMD_GPIO_WRITE, o, 2, &i, 1) && i != 0x01)
 		dev_info(&d->udev->dev, "gpio_write failed.\n");
 
 	st->gpio_write_state[GPIO_TUNER] = onoff;

drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c

@@ -520,12 +520,13 @@ static int hdcs_init(struct sd *sd)
 static int hdcs_dump(struct sd *sd)
 {
 	u16 reg, val;
+	int err = 0;
 
 	pr_info("Dumping sensor registers:\n");
 
-	for (reg = HDCS_IDENT; reg <= HDCS_ROWEXPH; reg++) {
-		stv06xx_read_sensor(sd, reg, &val);
+	for (reg = HDCS_IDENT; reg <= HDCS_ROWEXPH && !err; reg++) {
+		err = stv06xx_read_sensor(sd, reg, &val);
 		pr_info("reg 0x%02x = 0x%02x\n", reg, val);
 	}
-	return 0;
+	return (err < 0) ? err : 0;
 }

drivers/media/v4l2-core/v4l2-dev.c

@@ -1029,25 +1029,25 @@ int __video_register_device(struct video_device *vdev,
 	vdev->dev.class = &video_class;
 	vdev->dev.devt = MKDEV(VIDEO_MAJOR, vdev->minor);
 	vdev->dev.parent = vdev->dev_parent;
+	vdev->dev.release = v4l2_device_release;
 	dev_set_name(&vdev->dev, "%s%d", name_base, vdev->num);
+
+	/* Increase v4l2_device refcount */
+	v4l2_device_get(vdev->v4l2_dev);
+
 	mutex_lock(&videodev_lock);
 	ret = device_register(&vdev->dev);
 	if (ret < 0) {
 		mutex_unlock(&videodev_lock);
 		pr_err("%s: device_register failed\n", __func__);
-		goto cleanup;
+		put_device(&vdev->dev);
+		return ret;
 	}
-	/* Register the release callback that will be called when the last
-	   reference to the device goes away. */
-	vdev->dev.release = v4l2_device_release;
 
 	if (nr != -1 && nr != vdev->num && warn_if_nr_in_use)
 		pr_warn("%s: requested %s%d, got %s\n", __func__,
 			name_base, nr, video_device_node_name(vdev));
 
-	/* Increase v4l2_device refcount */
-	v4l2_device_get(vdev->v4l2_dev);
-
 	/* Part 5: Register the entity. */
 	ret = video_register_media_controller(vdev);
 

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

@@ -1495,8 +1495,8 @@ static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
  * @vf: pointer to the VF structure
  * @flr: VFLR was issued or not
  *
- * Returns true if the VF is in reset, resets successfully, or resets
- * are disabled and false otherwise.
+ * Return: True if reset was performed successfully or if resets are disabled.
+ * False if reset is already in progress.
  **/
 bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
 {
@@ -1515,7 +1515,7 @@ bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
 
 	/* If VF is being reset already we don't need to continue. */
 	if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
-		return true;
+		return false;
 
 	i40e_trigger_vf_reset(vf, flr);
 
@@ -4170,7 +4170,10 @@ int i40e_vc_process_vflr_event(struct i40e_pf *pf)
 		reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
 		if (reg & BIT(bit_idx))
 			/* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
-			i40e_reset_vf(vf, true);
+			if (!i40e_reset_vf(vf, true)) {
+				/* At least one VF did not finish resetting, retry next time */
+				set_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
+			}
 	}
 
 	return 0;

drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

@@ -1869,6 +1869,7 @@ try_add_to_existing_fg(struct mlx5_flow_table *ft,
 	struct mlx5_flow_handle *rule;
 	struct match_list *iter;
 	bool take_write = false;
+	bool try_again = false;
 	struct fs_fte *fte;
 	u64  version = 0;
 	int err;
@@ -1928,6 +1929,7 @@ skip_search:
 		nested_down_write_ref_node(&g->node, FS_LOCK_PARENT);
 
 		if (!g->node.active) {
+			try_again = true;
 			up_write_ref_node(&g->node, false);
 			continue;
 		}
@@ -1949,7 +1951,8 @@ skip_search:
 			tree_put_node(&fte->node, false);
 		return rule;
 	}
-	rule = ERR_PTR(-ENOENT);
+	err = try_again ? -EAGAIN : -ENOENT;
+	rule = ERR_PTR(err);
 out:
 	kmem_cache_free(steering->ftes_cache, fte);
 	return rule;

drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c

@@ -272,7 +272,7 @@ static void free_4k(struct mlx5_core_dev *dev, u64 addr, u32 function)
 static int alloc_system_page(struct mlx5_core_dev *dev, u32 function)
 {
 	struct device *device = mlx5_core_dma_dev(dev);
-	int nid = dev_to_node(device);
+	int nid = dev->priv.numa_node;
 	struct page *page;
 	u64 zero_addr = 1;
 	u64 addr;

drivers/net/ethernet/mellanox/mlx5/core/vport.c

@@ -440,19 +440,22 @@ int mlx5_query_nic_vport_node_guid(struct mlx5_core_dev *mdev, u64 *node_guid)
 {
 	u32 *out;
 	int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out);
+	int err;
 
 	out = kvzalloc(outlen, GFP_KERNEL);
 	if (!out)
 		return -ENOMEM;
 
-	mlx5_query_nic_vport_context(mdev, 0, out);
+	err = mlx5_query_nic_vport_context(mdev, 0, out);
+	if (err)
+		goto out;
 
 	*node_guid = MLX5_GET64(query_nic_vport_context_out, out,
 				nic_vport_context.node_guid);
-
+out:
 	kvfree(out);
 
-	return 0;
+	return err;
 }
 EXPORT_SYMBOL_GPL(mlx5_query_nic_vport_node_guid);
 
@@ -494,19 +497,22 @@ int mlx5_query_nic_vport_qkey_viol_cntr(struct mlx5_core_dev *mdev,
 {
 	u32 *out;
 	int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out);
+	int err;
 
 	out = kvzalloc(outlen, GFP_KERNEL);
 	if (!out)
 		return -ENOMEM;
 
-	mlx5_query_nic_vport_context(mdev, 0, out);
+	err = mlx5_query_nic_vport_context(mdev, 0, out);
+	if (err)
+		goto out;
 
 	*qkey_viol_cntr = MLX5_GET(query_nic_vport_context_out, out,
 				   nic_vport_context.qkey_violation_counter);
-
+out:
 	kvfree(out);
 
-	return 0;
+	return err;
 }
 EXPORT_SYMBOL_GPL(mlx5_query_nic_vport_qkey_viol_cntr);
 

drivers/net/macsec.c

@@ -260,15 +260,39 @@ static sci_t make_sci(u8 *addr, __be16 port)
 	return sci;
 }
 
-static sci_t macsec_frame_sci(struct macsec_eth_header *hdr, bool sci_present)
+static sci_t macsec_active_sci(struct macsec_secy *secy)
 {
-	sci_t sci;
+	struct macsec_rx_sc *rx_sc = rcu_dereference_bh(secy->rx_sc);
 
-	if (sci_present)
+	/* Case single RX SC */
+	if (rx_sc && !rcu_dereference_bh(rx_sc->next))
+		return (rx_sc->active) ? rx_sc->sci : 0;
+	/* Case no RX SC or multiple */
+	else
+		return 0;
+}
+
+static sci_t macsec_frame_sci(struct macsec_eth_header *hdr, bool sci_present,
+			      struct macsec_rxh_data *rxd)
+{
+	struct macsec_dev *macsec;
+	sci_t sci = 0;
+
+	/* SC = 1 */
+	if (sci_present) {
 		memcpy(&sci, hdr->secure_channel_id,
 		       sizeof(hdr->secure_channel_id));
-	else
+	/* SC = 0; ES = 0 */
+	} else if ((!(hdr->tci_an & (MACSEC_TCI_ES | MACSEC_TCI_SC))) &&
+		   (list_is_singular(&rxd->secys))) {
+		/* Only one SECY should exist on this scenario */
+		macsec = list_first_or_null_rcu(&rxd->secys, struct macsec_dev,
+						secys);
+		if (macsec)
+			return macsec_active_sci(&macsec->secy);
+	} else {
 		sci = make_sci(hdr->eth.h_source, MACSEC_PORT_ES);
+	}
 
 	return sci;
 }
@@ -1079,7 +1103,7 @@ static rx_handler_result_t macsec_handle_frame(struct sk_buff **pskb)
 	struct macsec_rxh_data *rxd;
 	struct macsec_dev *macsec;
 	unsigned int len;
-	sci_t sci;
+	sci_t sci = 0;
 	u32 hdr_pn;
 	bool cbit;
 	struct pcpu_rx_sc_stats *rxsc_stats;
@@ -1126,11 +1150,14 @@ static rx_handler_result_t macsec_handle_frame(struct sk_buff **pskb)
 
 	macsec_skb_cb(skb)->has_sci = !!(hdr->tci_an & MACSEC_TCI_SC);
 	macsec_skb_cb(skb)->assoc_num = hdr->tci_an & MACSEC_AN_MASK;
-	sci = macsec_frame_sci(hdr, macsec_skb_cb(skb)->has_sci);
 
 	rcu_read_lock();
 	rxd = macsec_data_rcu(skb->dev);
 
+	sci = macsec_frame_sci(hdr, macsec_skb_cb(skb)->has_sci, rxd);
+	if (!sci)
+		goto drop_nosc;
+
 	list_for_each_entry_rcu(macsec, &rxd->secys, secys) {
 		struct macsec_rx_sc *sc = find_rx_sc(&macsec->secy, sci);
 
@@ -1250,6 +1277,7 @@ drop:
 	macsec_rxsa_put(rx_sa);
 drop_nosa:
 	macsec_rxsc_put(rx_sc);
+drop_nosc:
 	rcu_read_unlock();
 drop_direct:
 	kfree_skb(skb);

drivers/net/phy/mdio_bus.c

@@ -754,7 +754,13 @@ int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum)
 
 	WARN_ON_ONCE(!mutex_is_locked(&bus->mdio_lock));
 
-	retval = bus->read(bus, addr, regnum);
+	if (addr >= PHY_MAX_ADDR)
+		return -ENXIO;
+
+	if (bus->read)
+		retval = bus->read(bus, addr, regnum);
+	else
+		retval = -EOPNOTSUPP;
 
 	trace_mdio_access(bus, 1, addr, regnum, retval, retval);
 	mdiobus_stats_acct(&bus->stats[addr], true, retval);
@@ -780,7 +786,13 @@ int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val)
 
 	WARN_ON_ONCE(!mutex_is_locked(&bus->mdio_lock));
 
-	err = bus->write(bus, addr, regnum, val);
+	if (addr >= PHY_MAX_ADDR)
+		return -ENXIO;
+
+	if (bus->write)
+		err = bus->write(bus, addr, regnum, val);
+	else
+		err = -EOPNOTSUPP;
 
 	trace_mdio_access(bus, 0, addr, regnum, val, err);
 	mdiobus_stats_acct(&bus->stats[addr], false, err);

drivers/net/usb/aqc111.c

@@ -31,11 +31,11 @@ static int aqc111_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
 				   USB_RECIP_DEVICE, value, index, data, size);
 
 	if (unlikely(ret < size)) {
-		ret = ret < 0 ? ret : -ENODATA;
-
 		netdev_warn(dev->net,
 			    "Failed to read(0x%x) reg index 0x%04x: %d\n",
 			    cmd, index, ret);
+
+		ret = ret < 0 ? ret : -ENODATA;
 	}
 
 	return ret;
@@ -50,11 +50,11 @@ static int aqc111_read_cmd(struct usbnet *dev, u8 cmd, u16 value,
 			      USB_RECIP_DEVICE, value, index, data, size);
 
 	if (unlikely(ret < size)) {
-		ret = ret < 0 ? ret : -ENODATA;
-
 		netdev_warn(dev->net,
 			    "Failed to read(0x%x) reg index 0x%04x: %d\n",
 			    cmd, index, ret);
+
+		ret = ret < 0 ? ret : -ENODATA;
 	}
 
 	return ret;

drivers/net/wireless/intersil/p54/fwio.c

@@ -233,6 +233,7 @@ int p54_download_eeprom(struct p54_common *priv, void *buf,
 
 	mutex_lock(&priv->eeprom_mutex);
 	priv->eeprom = buf;
+	priv->eeprom_slice_size = len;
 	eeprom_hdr = skb_put(skb, eeprom_hdr_size + len);
 
 	if (priv->fw_var < 0x509) {
@@ -255,6 +256,7 @@ int p54_download_eeprom(struct p54_common *priv, void *buf,
 		ret = -EBUSY;
 	}
 	priv->eeprom = NULL;
+	priv->eeprom_slice_size = 0;
 	mutex_unlock(&priv->eeprom_mutex);
 	return ret;
 }

drivers/net/wireless/intersil/p54/p54.h

@@ -258,6 +258,7 @@ struct p54_common {
 
 	/* eeprom handling */
 	void *eeprom;
+	size_t eeprom_slice_size;
 	struct completion eeprom_comp;
 	struct mutex eeprom_mutex;
 };

drivers/net/wireless/intersil/p54/txrx.c

@@ -500,14 +500,19 @@ static void p54_rx_eeprom_readback(struct p54_common *priv,
 		return ;
 
 	if (priv->fw_var >= 0x509) {
-		memcpy(priv->eeprom, eeprom->v2.data,
-		       le16_to_cpu(eeprom->v2.len));
+		if (le16_to_cpu(eeprom->v2.len) != priv->eeprom_slice_size)
+			return;
+
+		memcpy(priv->eeprom, eeprom->v2.data, priv->eeprom_slice_size);
 	} else {
-		memcpy(priv->eeprom, eeprom->v1.data,
-		       le16_to_cpu(eeprom->v1.len));
+		if (le16_to_cpu(eeprom->v1.len) != priv->eeprom_slice_size)
+			return;
+
+		memcpy(priv->eeprom, eeprom->v1.data, priv->eeprom_slice_size);
 	}
 
 	priv->eeprom = NULL;
+	priv->eeprom_slice_size = 0;
 	tmp = p54_find_and_unlink_skb(priv, hdr->req_id);
 	dev_kfree_skb_any(tmp);
 	complete(&priv->eeprom_comp);

drivers/net/wireless/realtek/rtlwifi/pci.c

@@ -155,6 +155,16 @@ static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw)
 	if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8192SE &&
 	    init_aspm == 0x43)
 		ppsc->support_aspm = false;
+
+	/* RTL8723BE found on some ASUSTek laptops, such as F441U and
+	 * X555UQ with subsystem ID 11ad:1723 are known to output large
+	 * amounts of PCIe AER errors during and after boot up, causing
+	 * heavy lags, poor network throughput, and occasional lock-ups.
+	 */
+	if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8723BE &&
+	    (rtlpci->pdev->subsystem_vendor == 0x11ad &&
+	     rtlpci->pdev->subsystem_device == 0x1723))
+		ppsc->support_aspm = false;
 }
 
 static bool _rtl_pci_platform_switch_device_pci_aspm(

drivers/scsi/scsi_transport_iscsi.c

@@ -3502,7 +3502,7 @@ static int iscsi_new_flashnode(struct iscsi_transport *transport,
 		pr_err("%s could not find host no %u\n",
 		       __func__, ev->u.new_flashnode.host_no);
 		err = -ENODEV;
-		goto put_host;
+		goto exit_new_fnode;
 	}
 
 	index = transport->new_flashnode(shost, data, len);
@@ -3512,7 +3512,6 @@ static int iscsi_new_flashnode(struct iscsi_transport *transport,
 	else
 		err = -EIO;
 
-put_host:
 	scsi_host_put(shost);
 
 exit_new_fnode:
@@ -3537,7 +3536,7 @@ static int iscsi_del_flashnode(struct iscsi_transport *transport,
 		pr_err("%s could not find host no %u\n",
 		       __func__, ev->u.del_flashnode.host_no);
 		err = -ENODEV;
-		goto put_host;
+		goto exit_del_fnode;
 	}
 
 	idx = ev->u.del_flashnode.flashnode_idx;
@@ -3579,7 +3578,7 @@ static int iscsi_login_flashnode(struct iscsi_transport *transport,
 		pr_err("%s could not find host no %u\n",
 		       __func__, ev->u.login_flashnode.host_no);
 		err = -ENODEV;
-		goto put_host;
+		goto exit_login_fnode;
 	}
 
 	idx = ev->u.login_flashnode.flashnode_idx;
@@ -3631,7 +3630,7 @@ static int iscsi_logout_flashnode(struct iscsi_transport *transport,
 		pr_err("%s could not find host no %u\n",
 		       __func__, ev->u.logout_flashnode.host_no);
 		err = -ENODEV;
-		goto put_host;
+		goto exit_logout_fnode;
 	}
 
 	idx = ev->u.logout_flashnode.flashnode_idx;
@@ -3681,7 +3680,7 @@ static int iscsi_logout_flashnode_sid(struct iscsi_transport *transport,
 		pr_err("%s could not find host no %u\n",
 		       __func__, ev->u.logout_flashnode.host_no);
 		err = -ENODEV;
-		goto put_host;
+		goto exit_logout_sid;
 	}
 
 	session = iscsi_session_lookup(ev->u.logout_flashnode_sid.sid);

drivers/usb/core/hub.c

@@ -5935,6 +5935,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 	struct usb_hub			*parent_hub;
 	struct usb_hcd			*hcd = bus_to_hcd(udev->bus);
 	struct usb_device_descriptor	descriptor;
+	struct usb_interface		*intf;
 	struct usb_host_bos		*bos;
 	int				i, j, ret = 0;
 	int				port1 = udev->portnum;
@@ -5995,6 +5996,18 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 	if (!udev->actconfig)
 		goto done;
 
+	/*
+	 * Some devices can't handle setting default altsetting 0 with a
+	 * Set-Interface request. Disable host-side endpoints of those
+	 * interfaces here. Enable and reset them back after host has set
+	 * its internal endpoint structures during usb_hcd_alloc_bandwith()
+	 */
+	for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
+		intf = udev->actconfig->interface[i];
+		if (intf->cur_altsetting->desc.bAlternateSetting == 0)
+			usb_disable_interface(udev, intf, true);
+	}
+
 	mutex_lock(hcd->bandwidth_mutex);
 	ret = usb_hcd_alloc_bandwidth(udev, udev->actconfig, NULL, NULL);
 	if (ret < 0) {
@@ -6026,12 +6039,11 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 	 */
 	for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
 		struct usb_host_config *config = udev->actconfig;
-		struct usb_interface *intf = config->interface[i];
 		struct usb_interface_descriptor *desc;
 
+		intf = config->interface[i];
 		desc = &intf->cur_altsetting->desc;
 		if (desc->bAlternateSetting == 0) {
-			usb_disable_interface(udev, intf, true);
 			usb_enable_interface(udev, intf, true);
 			ret = 0;
 		} else {

fs/configfs/dir.c

@@ -619,7 +619,7 @@ static int populate_attrs(struct config_item *item)
 				break;
 		}
 	}
-	if (t->ct_bin_attrs) {
+	if (!error && t->ct_bin_attrs) {
 		for (i = 0; (bin_attr = t->ct_bin_attrs[i]) != NULL; i++) {
 			error = configfs_create_bin_file(item, bin_attr);
 			if (error)

fs/filesystems.c

@@ -156,15 +156,19 @@ static int fs_index(const char __user * __name)
 static int fs_name(unsigned int index, char __user * buf)
 {
 	struct file_system_type * tmp;
-	int len, res;
+	int len, res = -EINVAL;
 
 	read_lock(&file_systems_lock);
-	for (tmp = file_systems; tmp; tmp = tmp->next, index--)
-		if (index <= 0 && try_module_get(tmp->owner))
+	for (tmp = file_systems; tmp; tmp = tmp->next, index--) {
+		if (index == 0) {
+			if (try_module_get(tmp->owner))
+				res = 0;
 			break;
+		}
+	}
 	read_unlock(&file_systems_lock);
-	if (!tmp)
-		return -EINVAL;
+	if (res)
+		return res;
 
 	/* OK, we got the reference, so we can safely block */
 	len = strlen(tmp->name) + 1;

fs/gfs2/lock_dlm.c

@@ -939,14 +939,15 @@ locks_done:
 		if (sdp->sd_args.ar_spectator) {
 			fs_info(sdp, "Recovery is required. Waiting for a "
 				"non-spectator to mount.\n");
+			spin_unlock(&ls->ls_recover_spin);
 			msleep_interruptible(1000);
 		} else {
 			fs_info(sdp, "control_mount wait1 block %u start %u "
 				"mount %u lvb %u flags %lx\n", block_gen,
 				start_gen, mount_gen, lvb_gen,
 				ls->ls_recover_flags);
+			spin_unlock(&ls->ls_recover_spin);
 		}
-		spin_unlock(&ls->ls_recover_spin);
 		goto restart;
 	}
 

fs/jbd2/transaction.c

@@ -1492,7 +1492,7 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
 				jh->b_next_transaction == transaction);
 		spin_unlock(&jh->b_state_lock);
 	}
-	if (jh->b_modified == 1) {
+	if (data_race(jh->b_modified == 1)) {
 		/* If it's in our transaction it must be in BJ_Metadata list. */
 		if (data_race(jh->b_transaction == transaction &&
 		    jh->b_jlist != BJ_Metadata)) {
@@ -1511,7 +1511,6 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
 		goto out;
 	}
 
-	journal = transaction->t_journal;
 	spin_lock(&jh->b_state_lock);
 
 	if (is_handle_aborted(handle)) {
@@ -1526,6 +1525,8 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
 		goto out_unlock_bh;
 	}
 
+	journal = transaction->t_journal;
+
 	if (jh->b_modified == 0) {
 		/*
 		 * This buffer's got modified and becoming part

fs/nfsd/nfs4proc.c

@@ -3243,7 +3243,8 @@ bool nfsd4_spo_must_allow(struct svc_rqst *rqstp)
 	struct nfs4_op_map *allow = &cstate->clp->cl_spo_must_allow;
 	u32 opiter;
 
-	if (!cstate->minorversion)
+	if (rqstp->rq_procinfo != &nfsd_version4.vs_proc[NFSPROC4_COMPOUND] ||
+	    cstate->minorversion == 0)
 		return false;
 
 	if (cstate->spo_must_allowed)

include/linux/bpf.h

@@ -1799,7 +1799,7 @@ static inline void bpf_map_offload_map_free(struct bpf_map *map)
 }
 #endif /* CONFIG_NET && CONFIG_BPF_SYSCALL */
 
-#if defined(CONFIG_BPF_STREAM_PARSER)
+#if defined(CONFIG_INET) && defined(CONFIG_BPF_SYSCALL)
 int sock_map_prog_update(struct bpf_map *map, struct bpf_prog *prog,
 			 struct bpf_prog *old, u32 which);
 int sock_map_get_from_fd(const union bpf_attr *attr, struct bpf_prog *prog);
@@ -1808,7 +1808,18 @@ int sock_map_update_elem_sys(struct bpf_map *map, void *key, void *value, u64 fl
 void sock_map_unhash(struct sock *sk);
 void sock_map_destroy(struct sock *sk);
 void sock_map_close(struct sock *sk, long timeout);
+
+void bpf_sk_reuseport_detach(struct sock *sk);
+int bpf_fd_reuseport_array_lookup_elem(struct bpf_map *map, void *key,
+				       void *value);
+int bpf_fd_reuseport_array_update_elem(struct bpf_map *map, void *key,
+				       void *value, u64 map_flags);
 #else
+static inline void bpf_sk_reuseport_detach(struct sock *sk)
+{
+}
+
+#ifdef CONFIG_BPF_SYSCALL
 static inline int sock_map_prog_update(struct bpf_map *map,
 				       struct bpf_prog *prog,
 				       struct bpf_prog *old, u32 which)
@@ -1833,20 +1844,7 @@ static inline int sock_map_update_elem_sys(struct bpf_map *map, void *key, void
 {
 	return -EOPNOTSUPP;
 }
-#endif /* CONFIG_BPF_STREAM_PARSER */
 
-#if defined(CONFIG_INET) && defined(CONFIG_BPF_SYSCALL)
-void bpf_sk_reuseport_detach(struct sock *sk);
-int bpf_fd_reuseport_array_lookup_elem(struct bpf_map *map, void *key,
-				       void *value);
-int bpf_fd_reuseport_array_update_elem(struct bpf_map *map, void *key,
-				       void *value, u64 map_flags);
-#else
-static inline void bpf_sk_reuseport_detach(struct sock *sk)
-{
-}
-
-#ifdef CONFIG_BPF_SYSCALL
 static inline int bpf_fd_reuseport_array_lookup_elem(struct bpf_map *map,
 						     void *key, void *value)
 {

include/linux/bpf_types.h

@@ -103,10 +103,6 @@ BPF_MAP_TYPE(BPF_MAP_TYPE_HASH_OF_MAPS, htab_of_maps_map_ops)
 BPF_MAP_TYPE(BPF_MAP_TYPE_DEVMAP, dev_map_ops)
 BPF_MAP_TYPE(BPF_MAP_TYPE_DEVMAP_HASH, dev_map_hash_ops)
 BPF_MAP_TYPE(BPF_MAP_TYPE_SK_STORAGE, sk_storage_map_ops)
-#if defined(CONFIG_BPF_STREAM_PARSER)
-BPF_MAP_TYPE(BPF_MAP_TYPE_SOCKMAP, sock_map_ops)
-BPF_MAP_TYPE(BPF_MAP_TYPE_SOCKHASH, sock_hash_ops)
-#endif
 #ifdef CONFIG_BPF_LSM
 BPF_MAP_TYPE(BPF_MAP_TYPE_INODE_STORAGE, inode_storage_map_ops)
 #endif
@@ -115,6 +111,8 @@ BPF_MAP_TYPE(BPF_MAP_TYPE_CPUMAP, cpu_map_ops)
 BPF_MAP_TYPE(BPF_MAP_TYPE_XSKMAP, xsk_map_ops)
 #endif
 #ifdef CONFIG_INET
+BPF_MAP_TYPE(BPF_MAP_TYPE_SOCKMAP, sock_map_ops)
+BPF_MAP_TYPE(BPF_MAP_TYPE_SOCKHASH, sock_hash_ops)
 BPF_MAP_TYPE(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY, reuseport_array_ops)
 #endif
 #endif

include/linux/skmsg.h

@@ -71,7 +71,9 @@ struct sk_psock_link {
 };
 
 struct sk_psock_parser {
+#if IS_ENABLED(CONFIG_BPF_STREAM_PARSER)
 	struct strparser		strp;
+#endif
 	bool				enabled;
 	void (*saved_data_ready)(struct sock *sk);
 };
@@ -307,9 +309,25 @@ static inline void sk_psock_report_error(struct sk_psock *psock, int err)
 
 struct sk_psock *sk_psock_init(struct sock *sk, int node);
 
+#if IS_ENABLED(CONFIG_BPF_STREAM_PARSER)
 int sk_psock_init_strp(struct sock *sk, struct sk_psock *psock);
 void sk_psock_start_strp(struct sock *sk, struct sk_psock *psock);
 void sk_psock_stop_strp(struct sock *sk, struct sk_psock *psock);
+#else
+static inline int sk_psock_init_strp(struct sock *sk, struct sk_psock *psock)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline void sk_psock_start_strp(struct sock *sk, struct sk_psock *psock)
+{
+}
+
+static inline void sk_psock_stop_strp(struct sock *sk, struct sk_psock *psock)
+{
+}
+#endif
+
 void sk_psock_start_verdict(struct sock *sk, struct sk_psock *psock);
 void sk_psock_stop_verdict(struct sock *sk, struct sk_psock *psock);
 

include/net/sock.h

@@ -1241,7 +1241,7 @@ struct proto {
 #endif
 
 	bool			(*stream_memory_free)(const struct sock *sk, int wake);
-	bool			(*stream_memory_read)(const struct sock *sk);
+	bool			(*sock_is_readable)(struct sock *sk);
 	/* Memory pressure */
 	void			(*enter_memory_pressure)(struct sock *sk);
 	void			(*leave_memory_pressure)(struct sock *sk);
@@ -2848,4 +2848,13 @@ void sock_set_sndtimeo(struct sock *sk, s64 secs);
 
 int sock_bind_add(struct sock *sk, struct sockaddr *addr, int addr_len);
 
+static inline bool sk_is_readable(struct sock *sk)
+{
+	const struct proto *prot = READ_ONCE(sk->sk_prot);
+
+	if (prot->sock_is_readable)
+		return prot->sock_is_readable(sk);
+
+	return false;
+}
 #endif	/* _SOCK_H */

include/net/tcp.h

@@ -1449,6 +1449,18 @@ static inline bool tcp_rmem_pressure(const struct sock *sk)
 	return atomic_read(&sk->sk_rmem_alloc) > threshold;
 }
 
+static inline bool tcp_epollin_ready(const struct sock *sk, int target)
+{
+	const struct tcp_sock *tp = tcp_sk(sk);
+	int avail = READ_ONCE(tp->rcv_nxt) - READ_ONCE(tp->copied_seq);
+
+	if (avail <= 0)
+		return false;
+
+	return (avail >= target) || tcp_rmem_pressure(sk) ||
+	       (tcp_receive_window(tp) <= inet_csk(sk)->icsk_ack.rcv_mss);
+}
+
 extern void tcp_openreq_init_rwin(struct request_sock *req,
 				  const struct sock *sk_listener,
 				  const struct dst_entry *dst);
@@ -2266,25 +2278,27 @@ void tcp_update_ulp(struct sock *sk, struct proto *p,
 	__MODULE_INFO(alias, alias_userspace, name);		\
 	__MODULE_INFO(alias, alias_tcp_ulp, "tcp-ulp-" name)
 
+#ifdef CONFIG_NET_SOCK_MSG
 struct sk_msg;
 struct sk_psock;
 
-#ifdef CONFIG_BPF_STREAM_PARSER
+#ifdef CONFIG_BPF_SYSCALL
 struct proto *tcp_bpf_get_proto(struct sock *sk, struct sk_psock *psock);
 void tcp_bpf_clone(const struct sock *sk, struct sock *newsk);
-#else
-static inline void tcp_bpf_clone(const struct sock *sk, struct sock *newsk)
-{
-}
-#endif /* CONFIG_BPF_STREAM_PARSER */
+#endif /* CONFIG_BPF_SYSCALL */
 
-#ifdef CONFIG_NET_SOCK_MSG
 int tcp_bpf_sendmsg_redir(struct sock *sk, struct sk_msg *msg, u32 bytes,
 			  int flags);
 int __tcp_bpf_recvmsg(struct sock *sk, struct sk_psock *psock,
 		      struct msghdr *msg, int len, int flags);
 #endif /* CONFIG_NET_SOCK_MSG */
 
+#if !defined(CONFIG_BPF_SYSCALL) || !defined(CONFIG_NET_SOCK_MSG)
+static inline void tcp_bpf_clone(const struct sock *sk, struct sock *newsk)
+{
+}
+#endif
+
 #ifdef CONFIG_CGROUP_BPF
 static inline void bpf_skops_init_skb(struct bpf_sock_ops_kern *skops,
 				      struct sk_buff *skb,

include/net/tls.h

@@ -391,7 +391,7 @@ void tls_sw_release_resources_rx(struct sock *sk);
 void tls_sw_free_ctx_rx(struct tls_context *tls_ctx);
 int tls_sw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 		   int nonblock, int flags, int *addr_len);
-bool tls_sw_stream_read(const struct sock *sk);
+bool tls_sw_sock_is_readable(struct sock *sk);
 ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos,
 			   struct pipe_inode_info *pipe,
 			   size_t len, unsigned int flags);

include/net/udp.h

@@ -514,9 +514,9 @@ static inline struct sk_buff *udp_rcv_segment(struct sock *sk,
 	return segs;
 }
 
-#ifdef CONFIG_BPF_STREAM_PARSER
+#ifdef CONFIG_BPF_SYSCALL
 struct sk_psock;
 struct proto *udp_bpf_get_proto(struct sock *sk, struct sk_psock *psock);
-#endif /* BPF_STREAM_PARSER */
+#endif
 
 #endif	/* _UDP_H */

init/Kconfig

@@ -1750,6 +1750,7 @@ config BPF_SYSCALL
 	select BPF
 	select IRQ_WORK
 	select TASKS_TRACE_RCU
+	select NET_SOCK_MSG if INET
 	default n
 	help
 	  Enable the bpf() system call that allows to manipulate eBPF

kernel/time/posix-cpu-timers.c

@@ -1373,6 +1373,15 @@ void run_posix_cpu_timers(void)
 
 	lockdep_assert_irqs_disabled();
 
+	/*
+	 * Ensure that release_task(tsk) can't happen while
+	 * handle_posix_cpu_timers() is running. Otherwise, a concurrent
+	 * posix_cpu_timer_del() may fail to lock_task_sighand(tsk) and
+	 * miss timer->it.cpu.firing != 0.
+	 */
+	if (tsk->exit_state)
+		return;
+
 	/*
 	 * If the actual expiry is deferred to task work context and the
 	 * work is already scheduled there is no point to do anything here.

net/Kconfig

@@ -311,13 +311,9 @@ config BPF_STREAM_PARSER
 	select STREAM_PARSER
 	select NET_SOCK_MSG
 	help
-	  Enabling this allows a stream parser to be used with
+	  Enabling this allows a TCP stream parser to be used with
 	  BPF_MAP_TYPE_SOCKMAP.
 
-	  BPF_MAP_TYPE_SOCKMAP provides a map type to use with network sockets.
-	  It can be used to enforce socket policy, implement socket redirects,
-	  etc.
-
 config NET_FLOW_LIMIT
 	bool
 	depends on RPS

net/core/Makefile

@@ -16,7 +16,6 @@ obj-y		     += dev.o dev_addr_lists.o dst.o netevent.o \
 obj-y += net-sysfs.o
 obj-$(CONFIG_PAGE_POOL) += page_pool.o
 obj-$(CONFIG_PROC_FS) += net-procfs.o
-obj-$(CONFIG_NET_SOCK_MSG) += skmsg.o
 obj-$(CONFIG_NET_PKTGEN) += pktgen.o
 obj-$(CONFIG_NETPOLL) += netpoll.o
 obj-$(CONFIG_FIB_RULES) += fib_rules.o
@@ -28,10 +27,13 @@ obj-$(CONFIG_CGROUP_NET_PRIO) += netprio_cgroup.o
 obj-$(CONFIG_CGROUP_NET_CLASSID) += netclassid_cgroup.o
 obj-$(CONFIG_LWTUNNEL) += lwtunnel.o
 obj-$(CONFIG_LWTUNNEL_BPF) += lwt_bpf.o
-obj-$(CONFIG_BPF_STREAM_PARSER) += sock_map.o
 obj-$(CONFIG_DST_CACHE) += dst_cache.o
 obj-$(CONFIG_HWBM) += hwbm.o
 obj-$(CONFIG_NET_DEVLINK) += devlink.o
 obj-$(CONFIG_GRO_CELLS) += gro_cells.o
 obj-$(CONFIG_FAILOVER) += failover.o
+ifeq ($(CONFIG_INET),y)
+obj-$(CONFIG_NET_SOCK_MSG) += skmsg.o
+obj-$(CONFIG_BPF_SYSCALL) += sock_map.o
+endif
 obj-$(CONFIG_BPF_SYSCALL) += bpf_sk_storage.o

net/core/skmsg.c

@@ -664,15 +664,15 @@ static void sk_psock_link_destroy(struct sk_psock *psock)
 	}
 }
 
+static void sk_psock_done_strp(struct sk_psock *psock);
+
 static void sk_psock_destroy_deferred(struct work_struct *gc)
 {
 	struct sk_psock *psock = container_of(gc, struct sk_psock, gc);
 
 	/* No sk_callback_lock since already detached. */
 
-	/* Parser has been stopped */
-	if (psock->progs.skb_parser)
-		strp_done(&psock->parser.strp);
+	sk_psock_done_strp(psock);
 
 	cancel_work_sync(&psock->work);
 
@@ -769,14 +769,6 @@ static int sk_psock_bpf_run(struct sk_psock *psock, struct bpf_prog *prog,
 	return bpf_prog_run_pin_on_cpu(prog, skb);
 }
 
-static struct sk_psock *sk_psock_from_strp(struct strparser *strp)
-{
-	struct sk_psock_parser *parser;
-
-	parser = container_of(strp, struct sk_psock_parser, strp);
-	return container_of(parser, struct sk_psock, parser);
-}
-
 static void sk_psock_skb_redirect(struct sk_buff *skb)
 {
 	struct sk_psock *psock_other;
@@ -880,6 +872,24 @@ out_free:
 	}
 }
 
+static void sk_psock_write_space(struct sock *sk)
+{
+	struct sk_psock *psock;
+	void (*write_space)(struct sock *sk) = NULL;
+
+	rcu_read_lock();
+	psock = sk_psock(sk);
+	if (likely(psock)) {
+		if (sk_psock_test_state(psock, SK_PSOCK_TX_ENABLED))
+			schedule_work(&psock->work);
+		write_space = psock->saved_write_space;
+	}
+	rcu_read_unlock();
+	if (write_space)
+		write_space(sk);
+}
+
+#if IS_ENABLED(CONFIG_BPF_STREAM_PARSER)
 static void sk_psock_strp_read(struct strparser *strp, struct sk_buff *skb)
 {
 	struct sk_psock *psock;
@@ -912,6 +922,14 @@ static int sk_psock_strp_read_done(struct strparser *strp, int err)
 	return err;
 }
 
+static struct sk_psock *sk_psock_from_strp(struct strparser *strp)
+{
+	struct sk_psock_parser *parser;
+
+	parser = container_of(strp, struct sk_psock_parser, strp);
+	return container_of(parser, struct sk_psock, parser);
+}
+
 static int sk_psock_strp_parse(struct strparser *strp, struct sk_buff *skb)
 {
 	struct sk_psock *psock = sk_psock_from_strp(strp);
@@ -948,6 +966,56 @@ static void sk_psock_strp_data_ready(struct sock *sk)
 	rcu_read_unlock();
 }
 
+int sk_psock_init_strp(struct sock *sk, struct sk_psock *psock)
+{
+	static const struct strp_callbacks cb = {
+		.rcv_msg	= sk_psock_strp_read,
+		.read_sock_done	= sk_psock_strp_read_done,
+		.parse_msg	= sk_psock_strp_parse,
+	};
+
+	psock->parser.enabled = false;
+	return strp_init(&psock->parser.strp, sk, &cb);
+}
+
+void sk_psock_start_strp(struct sock *sk, struct sk_psock *psock)
+{
+	struct sk_psock_parser *parser = &psock->parser;
+
+	if (parser->enabled)
+		return;
+
+	parser->saved_data_ready = sk->sk_data_ready;
+	sk->sk_data_ready = sk_psock_strp_data_ready;
+	sk->sk_write_space = sk_psock_write_space;
+	parser->enabled = true;
+}
+
+void sk_psock_stop_strp(struct sock *sk, struct sk_psock *psock)
+{
+	struct sk_psock_parser *parser = &psock->parser;
+
+	if (!parser->enabled)
+		return;
+
+	sk->sk_data_ready = parser->saved_data_ready;
+	parser->saved_data_ready = NULL;
+	strp_stop(&parser->strp);
+	parser->enabled = false;
+}
+
+static void sk_psock_done_strp(struct sk_psock *psock)
+{
+	/* Parser has been stopped */
+	if (psock->progs.skb_parser)
+		strp_done(&psock->parser.strp);
+}
+#else
+static void sk_psock_done_strp(struct sk_psock *psock)
+{
+}
+#endif /* CONFIG_BPF_STREAM_PARSER */
+
 static int sk_psock_verdict_recv(read_descriptor_t *desc, struct sk_buff *skb,
 				 unsigned int offset, size_t orig_len)
 {
@@ -1000,35 +1068,6 @@ static void sk_psock_verdict_data_ready(struct sock *sk)
 	sock->ops->read_sock(sk, &desc, sk_psock_verdict_recv);
 }
 
-static void sk_psock_write_space(struct sock *sk)
-{
-	struct sk_psock *psock;
-	void (*write_space)(struct sock *sk) = NULL;
-
-	rcu_read_lock();
-	psock = sk_psock(sk);
-	if (likely(psock)) {
-		if (sk_psock_test_state(psock, SK_PSOCK_TX_ENABLED))
-			schedule_work(&psock->work);
-		write_space = psock->saved_write_space;
-	}
-	rcu_read_unlock();
-	if (write_space)
-		write_space(sk);
-}
-
-int sk_psock_init_strp(struct sock *sk, struct sk_psock *psock)
-{
-	static const struct strp_callbacks cb = {
-		.rcv_msg	= sk_psock_strp_read,
-		.read_sock_done	= sk_psock_strp_read_done,
-		.parse_msg	= sk_psock_strp_parse,
-	};
-
-	psock->parser.enabled = false;
-	return strp_init(&psock->parser.strp, sk, &cb);
-}
-
 void sk_psock_start_verdict(struct sock *sk, struct sk_psock *psock)
 {
 	struct sk_psock_parser *parser = &psock->parser;
@@ -1042,32 +1081,6 @@ void sk_psock_start_verdict(struct sock *sk, struct sk_psock *psock)
 	parser->enabled = true;
 }
 
-void sk_psock_start_strp(struct sock *sk, struct sk_psock *psock)
-{
-	struct sk_psock_parser *parser = &psock->parser;
-
-	if (parser->enabled)
-		return;
-
-	parser->saved_data_ready = sk->sk_data_ready;
-	sk->sk_data_ready = sk_psock_strp_data_ready;
-	sk->sk_write_space = sk_psock_write_space;
-	parser->enabled = true;
-}
-
-void sk_psock_stop_strp(struct sock *sk, struct sk_psock *psock)
-{
-	struct sk_psock_parser *parser = &psock->parser;
-
-	if (!parser->enabled)
-		return;
-
-	sk->sk_data_ready = parser->saved_data_ready;
-	parser->saved_data_ready = NULL;
-	strp_stop(&parser->strp);
-	parser->enabled = false;
-}
-
 void sk_psock_stop_verdict(struct sock *sk, struct sk_psock *psock)
 {
 	struct sk_psock_parser *parser = &psock->parser;

net/core/sock_map.c

@@ -1506,9 +1506,11 @@ int sock_map_prog_update(struct bpf_map *map, struct bpf_prog *prog,
 	case BPF_SK_MSG_VERDICT:
 		pprog = &progs->msg_parser;
 		break;
+#if IS_ENABLED(CONFIG_BPF_STREAM_PARSER)
 	case BPF_SK_SKB_STREAM_PARSER:
 		pprog = &progs->skb_parser;
 		break;
+#endif
 	case BPF_SK_SKB_STREAM_VERDICT:
 		pprog = &progs->skb_verdict;
 		break;

net/ipv4/Makefile

@@ -62,7 +62,7 @@ obj-$(CONFIG_TCP_CONG_LP) += tcp_lp.o
 obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o
 obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o
 obj-$(CONFIG_NET_SOCK_MSG) += tcp_bpf.o
-obj-$(CONFIG_BPF_STREAM_PARSER) += udp_bpf.o
+obj-$(CONFIG_BPF_SYSCALL) += udp_bpf.o
 obj-$(CONFIG_NETLABEL) += cipso_ipv4.o
 
 obj-$(CONFIG_XFRM) += xfrm4_policy.o xfrm4_state.o xfrm4_input.o \

net/ipv4/tcp.c

@@ -478,22 +478,11 @@ static void tcp_tx_timestamp(struct sock *sk, u16 tsflags)
 	}
 }
 
-static inline bool tcp_stream_is_readable(const struct tcp_sock *tp,
-					  int target, struct sock *sk)
+static bool tcp_stream_is_readable(struct sock *sk, int target)
 {
-	int avail = READ_ONCE(tp->rcv_nxt) - READ_ONCE(tp->copied_seq);
-
-	if (avail > 0) {
-		if (avail >= target)
-			return true;
-		if (tcp_rmem_pressure(sk))
-			return true;
-		if (tcp_receive_window(tp) <= inet_csk(sk)->icsk_ack.rcv_mss)
-			return true;
-	}
-	if (sk->sk_prot->stream_memory_read)
-		return sk->sk_prot->stream_memory_read(sk);
-	return false;
+	if (tcp_epollin_ready(sk, target))
+		return true;
+	return sk_is_readable(sk);
 }
 
 /*
@@ -567,7 +556,7 @@ __poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
 		    tp->urg_data)
 			target++;
 
-		if (tcp_stream_is_readable(tp, target, sk))
+		if (tcp_stream_is_readable(sk, target))
 			mask |= EPOLLIN | EPOLLRDNORM;
 
 		if (!(shutdown & SEND_SHUTDOWN)) {

net/ipv4/tcp_bpf.c

@@ -232,8 +232,8 @@ int tcp_bpf_sendmsg_redir(struct sock *sk, struct sk_msg *msg,
 }
 EXPORT_SYMBOL_GPL(tcp_bpf_sendmsg_redir);
 
-#ifdef CONFIG_BPF_STREAM_PARSER
-static bool tcp_bpf_stream_read(const struct sock *sk)
+#ifdef CONFIG_BPF_SYSCALL
+static bool tcp_bpf_sock_is_readable(struct sock *sk)
 {
 	struct sk_psock *psock;
 	bool empty = true;
@@ -582,7 +582,7 @@ static void tcp_bpf_rebuild_protos(struct proto prot[TCP_BPF_NUM_CFGS],
 	prot[TCP_BPF_BASE].destroy		= sock_map_destroy;
 	prot[TCP_BPF_BASE].close		= sock_map_close;
 	prot[TCP_BPF_BASE].recvmsg		= tcp_bpf_recvmsg;
-	prot[TCP_BPF_BASE].stream_memory_read	= tcp_bpf_stream_read;
+	prot[TCP_BPF_BASE].sock_is_readable	= tcp_bpf_sock_is_readable;
 
 	prot[TCP_BPF_TX]			= prot[TCP_BPF_BASE];
 	prot[TCP_BPF_TX].sendmsg		= tcp_bpf_sendmsg;
@@ -646,4 +646,4 @@ void tcp_bpf_clone(const struct sock *sk, struct sock *newsk)
 	if (is_insidevar(prot, tcp_bpf_prots))
 		newsk->sk_prot = sk->sk_prot_creator;
 }
-#endif /* CONFIG_BPF_STREAM_PARSER */
+#endif /* CONFIG_BPF_SYSCALL */

net/ipv4/tcp_input.c

@@ -5030,15 +5030,8 @@ err:
 
 void tcp_data_ready(struct sock *sk)
 {
-	const struct tcp_sock *tp = tcp_sk(sk);
-	int avail = tp->rcv_nxt - tp->copied_seq;
-
-	if (avail < sk->sk_rcvlowat && !tcp_rmem_pressure(sk) &&
-	    !sock_flag(sk, SOCK_DONE) &&
-	    tcp_receive_window(tp) > inet_csk(sk)->icsk_ack.rcv_mss)
-		return;
-
-	sk->sk_data_ready(sk);
+	if (tcp_epollin_ready(sk, sk->sk_rcvlowat) || sock_flag(sk, SOCK_DONE))
+		sk->sk_data_ready(sk);
 }
 
 static void tcp_data_queue(struct sock *sk, struct sk_buff *skb)

net/netlabel/netlabel_kapi.c

@@ -1140,8 +1140,10 @@ int netlbl_conn_setattr(struct sock *sk,
 		break;
 #if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
-		if (sk->sk_family != AF_INET6)
-			return -EAFNOSUPPORT;
+		if (sk->sk_family != AF_INET6) {
+			ret_val = -EAFNOSUPPORT;
+			goto conn_setattr_return;
+		}
 
 		addr6 = (struct sockaddr_in6 *)addr;
 		entry = netlbl_domhsh_getentry_af6(secattr->domain,

net/sched/sch_ets.c

@@ -298,7 +298,7 @@ static void ets_class_qlen_notify(struct Qdisc *sch, unsigned long arg)
 	 * to remove them.
 	 */
 	if (!ets_class_is_strict(q, cl) && sch->q.qlen)
-		list_del(&cl->alist);
+		list_del_init(&cl->alist);
 }
 
 static int ets_class_dump(struct Qdisc *sch, unsigned long arg,
@@ -499,7 +499,7 @@ static struct sk_buff *ets_qdisc_dequeue(struct Qdisc *sch)
 			if (unlikely(!skb))
 				goto out;
 			if (cl->qdisc->q.qlen == 0)
-				list_del(&cl->alist);
+				list_del_init(&cl->alist);
 			return ets_qdisc_dequeue_skb(sch, skb);
 		}
 
@@ -674,8 +674,8 @@ static int ets_qdisc_change(struct Qdisc *sch, struct nlattr *opt,
 	}
 	for (i = q->nbands; i < oldbands; i++) {
 		if (i >= q->nstrict && q->classes[i].qdisc->q.qlen)
-			list_del(&q->classes[i].alist);
-		qdisc_tree_flush_backlog(q->classes[i].qdisc);
+			list_del_init(&q->classes[i].alist);
+		qdisc_purge_queue(q->classes[i].qdisc);
 	}
 	q->nstrict = nstrict;
 	memcpy(q->prio2band, priomap, sizeof(priomap));
@@ -723,7 +723,7 @@ static void ets_qdisc_reset(struct Qdisc *sch)
 
 	for (band = q->nstrict; band < q->nbands; band++) {
 		if (q->classes[band].qdisc->q.qlen)
-			list_del(&q->classes[band].alist);
+			list_del_init(&q->classes[band].alist);
 	}
 	for (band = 0; band < q->nbands; band++)
 		qdisc_reset(q->classes[band].qdisc);

net/sched/sch_prio.c

@@ -211,7 +211,7 @@ static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
 	memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);
 
 	for (i = q->bands; i < oldbands; i++)
-		qdisc_tree_flush_backlog(q->queues[i]);
+		qdisc_purge_queue(q->queues[i]);
 
 	for (i = oldbands; i < q->bands; i++) {
 		q->queues[i] = queues[i];

net/sched/sch_red.c

@@ -283,7 +283,7 @@ static int __red_change(struct Qdisc *sch, struct nlattr **tb,
 	q->userbits = userbits;
 	q->limit = ctl->limit;
 	if (child) {
-		qdisc_tree_flush_backlog(q->qdisc);
+		qdisc_purge_queue(q->qdisc);
 		old_child = q->qdisc;
 		q->qdisc = child;
 	}

net/sched/sch_sfq.c

@@ -317,7 +317,10 @@ drop:
 		/* It is difficult to believe, but ALL THE SLOTS HAVE LENGTH 1. */
 		x = q->tail->next;
 		slot = &q->slots[x];
-		q->tail->next = slot->next;
+		if (slot->next == x)
+			q->tail = NULL; /* no more active slots */
+		else
+			q->tail->next = slot->next;
 		q->ht[slot->hash] = SFQ_EMPTY_SLOT;
 		goto drop;
 	}

net/sched/sch_tbf.c

@@ -437,7 +437,7 @@ static int tbf_change(struct Qdisc *sch, struct nlattr *opt,
 
 	sch_tree_lock(sch);
 	if (child) {
-		qdisc_tree_flush_backlog(q->qdisc);
+		qdisc_purge_queue(q->qdisc);
 		old = q->qdisc;
 		q->qdisc = child;
 	}

net/tls/tls_main.c

@@ -731,12 +731,12 @@ static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG],
 
 	prot[TLS_BASE][TLS_SW] = prot[TLS_BASE][TLS_BASE];
 	prot[TLS_BASE][TLS_SW].recvmsg		  = tls_sw_recvmsg;
-	prot[TLS_BASE][TLS_SW].stream_memory_read = tls_sw_stream_read;
+	prot[TLS_BASE][TLS_SW].sock_is_readable   = tls_sw_sock_is_readable;
 	prot[TLS_BASE][TLS_SW].close		  = tls_sk_proto_close;
 
 	prot[TLS_SW][TLS_SW] = prot[TLS_SW][TLS_BASE];
 	prot[TLS_SW][TLS_SW].recvmsg		= tls_sw_recvmsg;
-	prot[TLS_SW][TLS_SW].stream_memory_read	= tls_sw_stream_read;
+	prot[TLS_SW][TLS_SW].sock_is_readable   = tls_sw_sock_is_readable;
 	prot[TLS_SW][TLS_SW].close		= tls_sk_proto_close;
 
 #ifdef CONFIG_TLS_DEVICE

net/tls/tls_sw.c

@@ -2047,7 +2047,7 @@ splice_read_end:
 	return copied ? : err;
 }
 
-bool tls_sw_stream_read(const struct sock *sk)
+bool tls_sw_sock_is_readable(struct sock *sk)
 {
 	struct tls_context *tls_ctx = tls_get_ctx(sk);
 	struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);

scripts/Kbuild.include

@@ -101,16 +101,16 @@ try-run = $(shell set -e;		\
 	fi)
 
 # as-option
-# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
+# Usage: aflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
 
 as-option = $(call try-run,\
-	$(CC) $(KBUILD_CFLAGS) $(1) -c -x assembler /dev/null -o "$$TMP",$(1),$(2))
+	$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(1) -c -x assembler-with-cpp /dev/null -o "$$TMP",$(1),$(2))
 
 # as-instr
-# Usage: cflags-y += $(call as-instr,instr,option1,option2)
+# Usage: aflags-y += $(call as-instr,instr,option1,option2)
 
 as-instr = $(call try-run,\
-	printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
+	printf "%b\n" "$(1)" | $(CC) -Werror $(CLANG_FLAGS) $(KBUILD_AFLAGS) -c -x assembler-with-cpp -o "$$TMP" -,$(2),$(3))
 
 # __cc-option
 # Usage: MY_CFLAGS += $(call __cc-option,$(CC),$(MY_CFLAGS),-march=winchip-c6,-march=i586)

scripts/Kconfig.include

@@ -33,7 +33,7 @@ ld-option = $(success,$(LD) -v $(1))
 
 # $(as-instr,<instr>)
 # Return y if the assembler supports <instr>, n otherwise
-as-instr = $(success,printf "%b\n" "$(1)" | $(CC) $(CLANG_FLAGS) -c -x assembler -o /dev/null -)
+as-instr = $(success,printf "%b\n" "$(1)" | $(CC) $(CLANG_FLAGS) -c -x assembler-with-cpp -o /dev/null -)
 
 # check if $(CC) and $(LD) exist
 $(error-if,$(failure,command -v $(CC)),compiler '$(CC)' not found)

scripts/as-version.sh

@@ -45,7 +45,7 @@ orig_args="$@"
 # Get the first line of the --version output.
 IFS='
 '
-set -- $(LC_ALL=C "$@" -Wa,--version -c -x assembler /dev/null -o /dev/null 2>/dev/null)
+set -- $(LC_ALL=C "$@" -Wa,--version -c -x assembler-with-cpp /dev/null -o /dev/null 2>/dev/null)
 
 # Split the line on spaces.
 IFS=' '

sound/soc/meson/meson-card-utils.c

@@ -245,7 +245,7 @@ static int meson_card_parse_of_optional(struct snd_soc_card *card,
 						    const char *p))
 {
 	/* If property is not provided, don't fail ... */
-	if (!of_property_read_bool(card->dev->of_node, propname))
+	if (!of_property_present(card->dev->of_node, propname))
 		return 0;
 
 	/* ... but do fail if it is provided and the parsing fails */

sound/soc/qcom/sdm845.c

@@ -78,6 +78,10 @@ static int sdm845_slim_snd_hw_params(struct snd_pcm_substream *substream,
 		else
 			ret = snd_soc_dai_set_channel_map(cpu_dai, tx_ch_cnt,
 							  tx_ch, 0, NULL);
+		if (ret != 0 && ret != -ENOTSUPP) {
+			dev_err(rtd->dev, "failed to set cpu chan map, err:%d\n", ret);
+			return ret;
+		}
 	}
 
 	return 0;

usr/include/Makefile

@@ -10,7 +10,7 @@ UAPI_CFLAGS := -std=c90 -Wall -Werror=implicit-function-declaration
 
 # In theory, we do not care -m32 or -m64 for header compile tests.
 # It is here just because CONFIG_CC_CAN_LINK is tested with -m32 or -m64.
-UAPI_CFLAGS += $(filter -m32 -m64, $(KBUILD_CFLAGS))
+UAPI_CFLAGS += $(filter -m32 -m64, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS))
 
 # USERCFLAGS might contain sysroot location for CC.
 UAPI_CFLAGS += $(USERCFLAGS)