diff options
author | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2019-02-20 11:04:08 +0200 |
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committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2019-02-20 11:04:08 +0200 |
commit | d0781a89c06f46d0f75e4e142061b8accb67cbe5 (patch) | |
tree | 6a1731bfc76fd92aac1880c23f75377462e07b35 /tools/testing/selftests/bpf/bpf_util.h | |
parent | 7f4127c4839b1801087e08b1797e830a766391c1 (diff) | |
parent | a5f2fafece141ef3509e686cea576366d55cabb6 (diff) |
Merge drm/drm-next into drm-intel-next-queued
Doing a backmerge to be able to merge topic/mei-hdcp-2019-02-19 PR.
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'tools/testing/selftests/bpf/bpf_util.h')
-rw-r--r-- | tools/testing/selftests/bpf/bpf_util.h | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/tools/testing/selftests/bpf/bpf_util.h b/tools/testing/selftests/bpf/bpf_util.h index 315a44fa32af..84fd6f1bf33e 100644 --- a/tools/testing/selftests/bpf/bpf_util.h +++ b/tools/testing/selftests/bpf/bpf_util.h @@ -13,7 +13,7 @@ static inline unsigned int bpf_num_possible_cpus(void) unsigned int start, end, possible_cpus = 0; char buff[128]; FILE *fp; - int n; + int len, n, i, j = 0; fp = fopen(fcpu, "r"); if (!fp) { @@ -21,17 +21,27 @@ static inline unsigned int bpf_num_possible_cpus(void) exit(1); } - while (fgets(buff, sizeof(buff), fp)) { - n = sscanf(buff, "%u-%u", &start, &end); - if (n == 0) { - printf("Failed to retrieve # possible CPUs!\n"); - exit(1); - } else if (n == 1) { - end = start; + if (!fgets(buff, sizeof(buff), fp)) { + printf("Failed to read %s!\n", fcpu); + exit(1); + } + + len = strlen(buff); + for (i = 0; i <= len; i++) { + if (buff[i] == ',' || buff[i] == '\0') { + buff[i] = '\0'; + n = sscanf(&buff[j], "%u-%u", &start, &end); + if (n <= 0) { + printf("Failed to retrieve # possible CPUs!\n"); + exit(1); + } else if (n == 1) { + end = start; + } + possible_cpus += end - start + 1; + j = i + 1; } - possible_cpus = start == 0 ? end + 1 : 0; - break; } + fclose(fp); return possible_cpus; |