mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 06:55:07 +07:00
1a71476e4f
Coverity flagged this under CID 1354884 as a sizeof mismatch, it turns
out that the argument "attr" passed to syscall should have been a
pointer to attr in the first place.
Reported-by: coverity (CID 1354884)
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Fixes: 8f9e05fb29 ("perf tools: Fix PowerPC native building")
Link: http://lkml.kernel.org/r/1461551694-5512-3-git-send-email-f.fainelli@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
36 lines
737 B
C
36 lines
737 B
C
#include <asm/unistd.h>
|
|
#include <linux/bpf.h>
|
|
#include <unistd.h>
|
|
|
|
#ifndef __NR_bpf
|
|
# if defined(__i386__)
|
|
# define __NR_bpf 357
|
|
# elif defined(__x86_64__)
|
|
# define __NR_bpf 321
|
|
# elif defined(__aarch64__)
|
|
# define __NR_bpf 280
|
|
# error __NR_bpf not defined. libbpf does not support your arch.
|
|
# endif
|
|
#endif
|
|
|
|
int main(void)
|
|
{
|
|
union bpf_attr attr;
|
|
|
|
/* Check fields in attr */
|
|
attr.prog_type = BPF_PROG_TYPE_KPROBE;
|
|
attr.insn_cnt = 0;
|
|
attr.insns = 0;
|
|
attr.license = 0;
|
|
attr.log_buf = 0;
|
|
attr.log_size = 0;
|
|
attr.log_level = 0;
|
|
attr.kern_version = 0;
|
|
|
|
/*
|
|
* Test existence of __NR_bpf and BPF_PROG_LOAD.
|
|
* This call should fail if we run the testcase.
|
|
*/
|
|
return syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
|
|
}
|