From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave.Martin@arm.com (Dave Martin) Date: Tue, 25 Jul 2017 12:52:41 +0100 Subject: [PATCH] arm64: sysreg: Fix unprotected macro argmuent in write_sysreg Message-ID: <1500983561-5723-1-git-send-email-Dave.Martin@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org write_sysreg() may misparse the value argument because it is used without parentheses to protect it. This patch adds the ( ) in order to avoid any surprises. Signed-off-by: Dave Martin --- arch/arm64/include/asm/sysreg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 16e44fa..822eebc 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -492,7 +492,7 @@ asm( * the "%x0" template means XZR. */ #define write_sysreg(v, r) do { \ - u64 __val = (u64)v; \ + u64 __val = (u64)(v); \ asm volatile("msr " __stringify(r) ", %x0" \ : : "rZ" (__val)); \ } while (0) -- 2.1.4