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[v19,05/24] selftests/vm/pkeys: Make gcc check arguments of sigsafe_printf()

Message ID b40b7a95fdd4045d62530a2a34452934caf3b0bc.1585646528.git.sandipan@linux.ibm.com
State Superseded
Headers show
Series [v19,01/24] selftests/x86/pkeys: Move selftests to arch-neutral directory | expand

Commit Message

Sandipan Das March 31, 2020, 9:58 a.m. UTC 
From: Thiago Jung Bauermann <bauerman@linux.ibm.com>

This will help us ensure we print pkey_reg_t values correctly in
different architectures.

Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Acked-by: Dave Hansen <dave.hansen@intel.com>
---
 tools/testing/selftests/vm/pkey-helpers.h | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/tools/testing/selftests/vm/pkey-helpers.h b/tools/testing/selftests/vm/pkey-helpers.h
index 3ed2f021bf7a0..7f18a82e54fc8 100644
--- a/tools/testing/selftests/vm/pkey-helpers.h
+++ b/tools/testing/selftests/vm/pkey-helpers.h
@@ -27,6 +27,10 @@ 
 #define DPRINT_IN_SIGNAL_BUF_SIZE 4096
 extern int dprint_in_signal;
 extern char dprint_in_signal_buffer[DPRINT_IN_SIGNAL_BUF_SIZE];
+
+#ifdef __GNUC__
+__attribute__((format(printf, 1, 2)))
+#endif
 static inline void sigsafe_printf(const char *format, ...)
 {
 	va_list ap;