linux-kernel - [PATCH 5.4 078/102] arm64: compat: Fix syscall number of compat_clock

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Date:   Tue, 24 Mar 2020 14:11:10 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Catalin Marinas <catalin.marinas@....com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Will Deacon <will@...nel.org>
Subject: [PATCH 5.4 078/102] arm64: compat: Fix syscall number of compat_clock_getres

From: Vincenzo Frascino <vincenzo.frascino@....com>

commit 3568b88944fef28db3ee989b957da49ffc627ede upstream.

The syscall number of compat_clock_getres was erroneously set to 247
(__NR_io_cancel!) instead of 264. This causes the vDSO fallback of
clock_getres() to land on the wrong syscall for compat tasks.

Fix the numbering.

Cc: <stable@...r.kernel.org>
Fixes: 53c489e1dfeb6 ("arm64: compat: Add missing syscall numbers")
Acked-by: Catalin Marinas <catalin.marinas@....com>
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
Signed-off-by: Will Deacon <will@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm64/include/asm/unistd.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -25,8 +25,8 @@
 #define __NR_compat_gettimeofday	78
 #define __NR_compat_sigreturn		119
 #define __NR_compat_rt_sigreturn	173
-#define __NR_compat_clock_getres	247
 #define __NR_compat_clock_gettime	263
+#define __NR_compat_clock_getres	264
 #define __NR_compat_clock_gettime64	403
 #define __NR_compat_clock_getres_time64	406