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samples/bpf: fix a couple of style issues in bpf_load 

This commit fixes a few style problems in samples/bpf/bpf_load.c:

 - Magic string use of 'DEBUGFS'
 - Useless zero initialization of a global variable
 - Minor style fix with whitespace

Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Daniel T. Lee 2019-05-23 16:24:48 +09:00 committed by Daniel Borkmann
parent 486d3f22c0
commit 37b54aed12
1 changed files with 4 additions and 4 deletions
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8
samples/bpf/bpf_load.c
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@ -40,7 +40,7 @@ int prog_cnt;
int prog_array_fd = -1;
struct bpf_map_data map_data[MAX_MAPS];
int map_data_count = 0;
int map_data_count;
static int populate_prog_array(const char *event, int prog_fd)
{
@ -65,7 +65,7 @@ static int write_kprobe_events(const char *val)
else
flags = O_WRONLY | O_APPEND;
fd = open("/sys/kernel/debug/tracing/kprobe_events", flags);
fd = open(DEBUGFS "kprobe_events", flags);
ret = write(fd, val, strlen(val));
close(fd);
@ -490,8 +490,8 @@ static int load_elf_maps_section(struct bpf_map_data *maps, int maps_shndx,
/* Verify no newer features were requested */
if (validate_zero) {
addr = (unsigned char*) def + map_sz_copy;
end = (unsigned char*) def + map_sz_elf;
addr = (unsigned char *) def + map_sz_copy;
end = (unsigned char *) def + map_sz_elf;
for (; addr < end; addr++) {
if (*addr != 0) {
free(sym);