linux-kernel - [PATCH] arm64: kasan: fix include error in MTE functions

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Date:   Tue, 8 Mar 2022 10:30:58 +0100
From:   Paul Semel <semelpaul@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     andreyknvl@...gle.com, vincenzo.frascino@....com,
        catalin.marinas@....com, linux-arm-kernel@...ts.infradead.org,
        paul.semel@...adoghq.com, semelpaul@...il.com
Subject: [PATCH] arm64: kasan: fix include error in MTE functions

Fix `error: expected string literal in 'asm'`.
This happens when compiling an ebpf object file that includes
`net/net_namespace.h` from linux kernel headers.

Include trace:
     include/net/net_namespace.h:10
     include/linux/workqueue.h:9
     include/linux/timer.h:8
     include/linux/debugobjects.h:6
     include/linux/spinlock.h:90
     include/linux/workqueue.h:9
     arch/arm64/include/asm/spinlock.h:9
     arch/arm64/include/generated/asm/qrwlock.h:1
     include/asm-generic/qrwlock.h:14
     arch/arm64/include/asm/processor.h:33
     arch/arm64/include/asm/kasan.h:9
     arch/arm64/include/asm/mte-kasan.h:45
     arch/arm64/include/asm/mte-def.h:14

Signed-off-by: Paul Semel <paul.semel@...adoghq.com>
---
  arch/arm64/include/asm/mte-kasan.h | 1 +
  1 file changed, 1 insertion(+)

diff --git a/arch/arm64/include/asm/mte-kasan.h 
b/arch/arm64/include/asm/mte-kasan.h
index e4704a403237..a857bcacf0fe 100644
--- a/arch/arm64/include/asm/mte-kasan.h
+++ b/arch/arm64/include/asm/mte-kasan.h
@@ -5,6 +5,7 @@
  #ifndef __ASM_MTE_KASAN_H
  #define __ASM_MTE_KASAN_H

+#include <asm/compiler.h>
  #include <asm/mte-def.h>

  #ifndef __ASSEMBLY__
-- 
2.35.1