From 6b137ff16d1967c1f2c4a91b65032e3c8652e4cd Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@google.com>
Date: Fri, 18 Oct 2024 15:06:46 -0700
Subject: [PATCH] insmod.sh: Support 'rmmod' directive

Some mechanisms (e.g., initramfs module lists) may be overzealous in
what modules get loaded on a system. It can save resources to remove
certain modules when we know they are going to be unused -- for example,
extraneous panel drivers only needed for other devices within a given
device family.

Bug: 360934165
Test: `rmmod|<module_name>.ko` added to init.insmod.<device>.cfg
Change-Id: Iddb588116a0526faded3396d54f54ef82deed44d
---
 insmod/insmod.sh | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/insmod/insmod.sh b/insmod/insmod.sh
index 8cac37e..dfc4fdd 100755
--- a/insmod/insmod.sh
+++ b/insmod/insmod.sh
@@ -1,11 +1,11 @@
 #!/vendor/bin/sh
 
-#############################################################
-### init.insmod.cfg format:                               ###
-### ----------------------------------------------------- ###
-### [insmod|setprop|enable/moprobe|wait] [path|prop name] ###
-### ...                                                   ###
-#############################################################
+###################################################################
+### init.insmod.cfg format:                                     ###
+### ----------------------------------------------------------- ###
+### [insmod|setprop|enable|moprobe|rmmod|wait] [path|prop name] ###
+### ...                                                         ###
+###################################################################
 
 modules_dir=
 system_modules_dir=
@@ -96,6 +96,7 @@ if [ -f $cfg_file ]; then
           modprobe -a -d "${modules_dir}" $arg
         fi
         ;;
+      "rmmod") rmmod $arg ;;
       "wait") wait_for_file $arg ;;
     esac
   done < $cfg_file