linux-kernel - [PATCH 1/2] Loongarch: KGDB: fix implicit declaration of flush_icache

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Message-ID: <20230829002316.28287-1-rdunlap@infradead.org>
Date:   Mon, 28 Aug 2023 17:23:16 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Qing Zhang <zhangqing@...ngson.cn>, Hui Li <lihui@...ngson.cn>,
        Binbin Zhou <zhoubinbin@...ngson.cn>,
        Huacai Chen <chenhuacai@...nel.org>,
        WANG Xuerui <kernel@...0n.name>, loongarch@...ts.linux.dev
Subject: [PATCH 1/2] Loongarch: KGDB: fix implicit declaration of flush_icache_range()

Add <asm/cacheflush.h> to prevent a build error:

arch/loongarch/kernel/kgdb.c: In function 'do_single_step':
arch/loongarch/kernel/kgdb.c:440:9: error: implicit declaration of function 'flush_icache_range' [-Werror=implicit-function-declaration]
  440 |         flush_icache_range(addr, addr + BREAK_INSTR_SIZE);

Fixes: 8968eb010689 ("LoongArch: Add basic KGDB & KDB support")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Qing Zhang <zhangqing@...ngson.cn>
Cc: Hui Li <lihui@...ngson.cn>
Cc: Binbin Zhou <zhoubinbin@...ngson.cn>
Cc: Huacai Chen <chenhuacai@...nel.org>
Cc: WANG Xuerui <kernel@...0n.name>
Cc: loongarch@...ts.linux.dev
---
 arch/loongarch/kernel/kgdb.c |    1 +
 1 file changed, 1 insertion(+)

diff -- a/arch/loongarch/kernel/kgdb.c b/arch/loongarch/kernel/kgdb.c
--- a/arch/loongarch/kernel/kgdb.c
+++ b/arch/loongarch/kernel/kgdb.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/smp.h>
 
+#include <asm/cacheflush.h>
 #include <asm/fpu.h>
 #include <asm/lbt.h>
 #include <asm/hw_breakpoint.h>