From 4c25eb8ea5a2ae8cd310221efd3dd2be4f62ab8f Mon Sep 17 00:00:00 2001
From: Paul Chen <chenpaul@google.com>
Date: Wed, 13 Mar 2024 15:33:31 +0800
Subject: [PATCH] ANDROID: EXPORT raise_softirq and update the ABI symbol list
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In kernel 6.1 pending softirq won’t block turning off idle tick,
so it will take longer to be handled.
This is for power saving purposes but has extra delay then the 5.15 kernel.
From above, it needs to export raise_softirq for external module to
speed up the time sensitive event.

Bug: 324080017
Test: build pass, raise_softirq can be used
Change-Id: I675d5927d000ae5c372e6a88a1eda3101152e709
Signed-off-by: Paul Chen <chenpaul@google.com>
---
 android/abi_gki_aarch64.stg   | 10 ++++++++++
 android/abi_gki_aarch64_pixel |  1 +
 kernel/softirq.c              |  1 +
 3 files changed, 12 insertions(+)

diff --git a/android/abi_gki_aarch64.stg b/android/abi_gki_aarch64.stg
index da3c540ac6c9..be92d70e933a 100644
--- a/android/abi_gki_aarch64.stg
+++ b/android/abi_gki_aarch64.stg
@@ -383784,6 +383784,15 @@ elf_symbol {
   type_id: 0x91f0ee05
   full_name: "radix_tree_tagged"
 }
+elf_symbol {
+  id: 0xdd08aa2e
+  name: "raise_softirq"
+  is_defined: true
+  symbol_type: FUNCTION
+  crc: 0xc7ea8a7a
+  type_id: 0x01f9081c
+  full_name: "raise_softirq"
+}
 elf_symbol {
   id: 0xbc5e2f91
   name: "rational_best_approximation"
@@ -409118,6 +409127,7 @@ interface {
   symbol_id: 0xf65a8574
   symbol_id: 0x69d73c4e
   symbol_id: 0x9653ad6f
+  symbol_id: 0xdd08aa2e
   symbol_id: 0xbc5e2f91
   symbol_id: 0x05375661
   symbol_id: 0x8e8693ec
diff --git a/android/abi_gki_aarch64_pixel b/android/abi_gki_aarch64_pixel
index 4effae817da1..6344709b8c6b 100644
--- a/android/abi_gki_aarch64_pixel
+++ b/android/abi_gki_aarch64_pixel
@@ -1753,6 +1753,7 @@
   radix_tree_lookup
   radix_tree_next_chunk
   radix_tree_preload
+  raise_softirq
   ___ratelimit
   raw_notifier_call_chain
   raw_notifier_chain_register
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 8c4436f0504f..43e3193a5767 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -755,6 +755,7 @@ void raise_softirq(unsigned int nr)
 	raise_softirq_irqoff(nr);
 	local_irq_restore(flags);
 }
+EXPORT_SYMBOL_GPL(raise_softirq);
 
 void __raise_softirq_irqoff(unsigned int nr)
 {