linux-kernel - [PATCH] arm64: pass ESR_ELx to die() of cfi

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Date:   Mon, 20 Feb 2023 16:34:41 +0900
From:   Sangmoon Kim <sangmoon.kim@...sung.com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        Mark Brown <broonie@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Sangmoon Kim <sangmoon.kim@...sung.com>
Subject: [PATCH] arm64: pass ESR_ELx to die() of cfi_handler

Commit 0f2cb928a154 ("arm64: consistently pass ESR_ELx to die()") caused
all callers to pass the ESR_ELx value to die().

For consistency, this patch also adds esr to die() call of cfi_handler.
Also, when CFI error occurs, die handlers can use ESR_ELx value.

Signed-off-by: Sangmoon Kim <sangmoon.kim@...sung.com>
---
 arch/arm64/kernel/traps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 0ccc063daccb..4a623e2e982b 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -990,7 +990,7 @@ static int cfi_handler(struct pt_regs *regs, unsigned long esr)
 
 	switch (report_cfi_failure(regs, regs->pc, &target, type)) {
 	case BUG_TRAP_TYPE_BUG:
-		die("Oops - CFI", regs, 0);
+		die("Oops - CFI", regs, esr);
 		break;
 
 	case BUG_TRAP_TYPE_WARN:
-- 
2.17.1