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libbpf: fix clang warning about format non-literal

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Add format attribute to the format string in print routines.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David Ahern <dsahern@kernel.org>
This commit is contained in:
Stephen Hemminger 2022-01-11 09:54:37 -08:00 committed by David Ahern
parent 5632cf69ad
commit bf71c8f214
1 changed files with 4 additions and 2 deletions
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6
lib/bpf_libbpf.c
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@ -23,12 +23,14 @@
#include "bpf_util.h"
static int verbose_print(enum libbpf_print_level level, const char *format, va_list args)
static int __attribute__((format(printf, 2, 0)))
verbose_print(enum libbpf_print_level level, const char *format, va_list args)
{
return vfprintf(stderr, format, args);
}
static int silent_print(enum libbpf_print_level level, const char *format, va_list args)
static int __attribute__((format(printf, 2, 0)))
silent_print(enum libbpf_print_level level, const char *format, va_list args)
{
if (level > LIBBPF_WARN)
return 0;