[PATCH 4.9 053/130] selftests/x86/sigreturn: Do minor cleanups

Greg Kroah-Hartman
2018-08-23T08:10:35Z

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++;
}
}