releases/4.9.124/selftests-x86-sigreturn-do-minor-cleanups.patch

From foo@baz Wed Aug 22 09:42:09 CEST 2018
From: Andy Lutomirski <luto@kernel.org>
Date: Tue, 26 Jun 2018 22:17:18 -0700
Subject: selftests/x86/sigreturn: Do minor cleanups

From: Andy Lutomirski <luto@kernel.org>

[ Upstream commit e8a445dea219c32727016af14f847d2e8f7ebec8 ]

We have short names for the requested and resulting register values.
Use them instead of spelling out the whole register entry for each
case.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/bb3bc1f923a2f6fe7912d22a1068fe29d6033d38.1530076529.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/x86/sigreturn.c |   13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

--- a/tools/testing/selftests/x86/sigreturn.c
+++ b/tools/testing/selftests/x86/sigreturn.c
@@ -610,6 +610,7 @@ static int test_valid_sigreturn(int cs_b
 	 */
 	for (int i = 0; i < NGREG; i++) {
 		greg_t req = requested_regs[i], res = resulting_regs[i];
+
 		if (i == REG_TRAPNO || i == REG_IP)
 			continue;	/* don't care */
 
@@ -673,18 +674,18 @@ static int test_valid_sigreturn(int cs_b
 #endif
 
 		/* Sanity check on the kernel */
-		if (i == REG_CX && requested_regs[i] != resulting_regs[i]) {
+		if (i == REG_CX && req != res) {
 			printf("[FAIL]\tCX (saved SP) mismatch: requested 0x%llx; got 0x%llx\n",
-			       (unsigned long long)requested_regs[i],
-			       (unsigned long long)resulting_regs[i]);
+			       (unsigned long long)req,
+			       (unsigned long long)res);
 			nerrs++;
 			continue;
 		}
 
-		if (requested_regs[i] != resulting_regs[i] && !ignore_reg) {
+		if (req != res && !ignore_reg) {
 			printf("[FAIL]\tReg %d mismatch: requested 0x%llx; got 0x%llx\n",
-			       i, (unsigned long long)requested_regs[i],
-			       (unsigned long long)resulting_regs[i]);
+			       i, (unsigned long long)req,
+			       (unsigned long long)res);
 			nerrs++;
 		}
 	}