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authorMasami Hiramatsu <mhiramat@kernel.org>2020-02-07 22:55:01 +0900
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-02-10 12:06:43 -0500
commit17d25ae7f10e247bcea1f66268f746576cf9c86d (patch)
treec7660aae292dc8616d8c2fbc160d8b32a77c4c8c /tools/bootconfig/include
parenta00574036c261421721fa770ccd21a1012e1fbbd (diff)
tools/bootconfig: Fix wrong __VA_ARGS__ usage
Since printk() wrapper macro uses __VA_ARGS__ without "##" prefix, it causes a build error if there is no variable arguments (e.g. only fmt is specified.) To fix this error, use ##__VA_ARGS__ instead of __VAR_ARGS__. Link: http://lkml.kernel.org/r/158108370130.2758.10893830923800978011.stgit@devnote2 Fixes: 950313ebf79c ("tools: bootconfig: Add bootconfig command") Reported-by: Michael Ellerman <mpe@ellerman.id.au> Tested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools/bootconfig/include')
-rw-r--r--tools/bootconfig/include/linux/printk.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/bootconfig/include/linux/printk.h b/tools/bootconfig/include/linux/printk.h
index 017bcd6912a5..e978a63d3222 100644
--- a/tools/bootconfig/include/linux/printk.h
+++ b/tools/bootconfig/include/linux/printk.h
@@ -7,7 +7,7 @@
/* controllable printf */
extern int pr_output;
#define printk(fmt, ...) \
- (pr_output ? printf(fmt, __VA_ARGS__) : 0)
+ (pr_output ? printf(fmt, ##__VA_ARGS__) : 0)
#define pr_err printk
#define pr_warn printk