Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b223e3b4 authored by Dan Carpenter's avatar Dan Carpenter Committed by Daniel Borkmann
Browse files

tools/bpf_jit_disasm: silence a static checker warning 



There is a static checker warning that "proglen" has an upper bound but
no lower bound.  The allocation will just fail harmlessly so it's not a
big deal.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent cb5f7334

tools/bpf/bpf_jit_disasm.c

+4 −3
Original line number Original line Diff line number Diff line
@@ -172,7 +172,8 @@ static uint8_t *get_last_jit_image(char *haystack, size_t hlen, 
{

{

	char *ptr, *pptr, *tmp;

	char *ptr, *pptr, *tmp;

	off_t off = 0;

	off_t off = 0;

	int ret, flen, proglen, pass, ulen = 0;

	unsigned int proglen;

	int ret, flen, pass, ulen = 0;

	regmatch_t pmatch[1];

	regmatch_t pmatch[1];

	unsigned long base;

	unsigned long base;

	regex_t regex;

	regex_t regex;
@@ -199,7 +200,7 @@ static uint8_t *get_last_jit_image(char *haystack, size_t hlen, 
	}

	}





	ptr = haystack + off - (pmatch[0].rm_eo - pmatch[0].rm_so);

	ptr = haystack + off - (pmatch[0].rm_eo - pmatch[0].rm_so);

	ret = sscanf(ptr, "flen=%d proglen=%d pass=%d image=%lx",

	ret = sscanf(ptr, "flen=%d proglen=%u pass=%d image=%lx",

		     &flen, &proglen, &pass, &base);

		     &flen, &proglen, &pass, &base);

	if (ret != 4) {

	if (ret != 4) {

		regfree(&regex);

		regfree(&regex);
@@ -239,7 +240,7 @@ static uint8_t *get_last_jit_image(char *haystack, size_t hlen, 
	}

	}





	assert(ulen == proglen);

	assert(ulen == proglen);

	printf("%d bytes emitted from JIT compiler (pass:%d, flen:%d)\n",

	printf("%u bytes emitted from JIT compiler (pass:%d, flen:%d)\n",

	       proglen, pass, flen);

	       proglen, pass, flen);

	printf("%lx + <x>:\n", base);

	printf("%lx + <x>:\n", base);