linux-kernel - [PATCH] powerpc/ptrace: Remove duplicate check from pt_regs

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Message-Id: <20210305112807.26299-1-efremov@linux.com>
Date:   Fri,  5 Mar 2021 14:28:07 +0300
From:   Denis Efremov <efremov@...ux.com>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:     Denis Efremov <efremov@...ux.com>,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH] powerpc/ptrace: Remove duplicate check from pt_regs_check()

"offsetof(struct pt_regs, msr) == offsetof(struct user_pt_regs, msr)"
checked in pt_regs_check() twice in a row. Remove the second check.

Signed-off-by: Denis Efremov <efremov@...ux.com>
---
 arch/powerpc/kernel/ptrace/ptrace.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/powerpc/kernel/ptrace/ptrace.c b/arch/powerpc/kernel/ptrace/ptrace.c
index 4f3d4ff3728c..51801777906c 100644
--- a/arch/powerpc/kernel/ptrace/ptrace.c
+++ b/arch/powerpc/kernel/ptrace/ptrace.c
@@ -354,8 +354,6 @@ void __init pt_regs_check(void)
 		     offsetof(struct user_pt_regs, nip));
 	BUILD_BUG_ON(offsetof(struct pt_regs, msr) !=
 		     offsetof(struct user_pt_regs, msr));
-	BUILD_BUG_ON(offsetof(struct pt_regs, msr) !=
-		     offsetof(struct user_pt_regs, msr));
 	BUILD_BUG_ON(offsetof(struct pt_regs, orig_gpr3) !=
 		     offsetof(struct user_pt_regs, orig_gpr3));
 	BUILD_BUG_ON(offsetof(struct pt_regs, ctr) !=
-- 
2.26.2