[PATCH] ARM: kprobes: address gcc -Wempty-body warning

From: Arnd Bergmann
Date: Mon Mar 22 2021 - 07:47:18 EST


From: Arnd Bergmann <arnd@xxxxxxxx>

Building with 'make W=1' shows a warning in some configurations
when 'verbose()' is defined to be empty.

arch/arm/probes/kprobes/test-core.c: In function 'kprobes_test_case_start':
arch/arm/probes/kprobes/test-core.c:1367:26: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body]
1367 | current_instruction);
| ^

Change the definition of verbose() to use no_printk(), allowing format
string checking and avoiding the warning.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
arch/arm/probes/kprobes/test-core.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/probes/kprobes/test-core.h b/arch/arm/probes/kprobes/test-core.h
index 19a5b2add41e..6e42c0dd82a5 100644
--- a/arch/arm/probes/kprobes/test-core.h
+++ b/arch/arm/probes/kprobes/test-core.h
@@ -98,7 +98,7 @@ struct test_arg_end {
#if VERBOSE
#define verbose(fmt, ...) pr_info(fmt, ##__VA_ARGS__)
#else
-#define verbose(fmt, ...)
+#define verbose(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif

#define TEST_GROUP(title) \
--
2.29.2