> -Original Message-
> From: Intel-gfx [mailto:intel-gfx-boun...@lists.freedesktop.org] On Behalf
> Of Dhinakaran Pandiyan
> Sent: Tuesday, September 19, 2017 3:48 PM
> To: intel-gfx@lists.freedesktop.org
> Cc: Pandiyan, Dhinakaran ; Vivi, Rodrigo
>
> Subject: [Intel-gfx] [PATCH i-g-t v2] tests/psr: Don't strcmp CRCs that are
> not
> NULL terminated.
>
> Switched to strncmp.
> v2: increased buffer size to account for NULL character.
>
> Cc: Rodrigo Vivi
> Signed-off-by: Dhinakaran Pandiyan
Reviewed-by: Radhakrishna Sripada
> ---
> tests/kms_psr_sink_crc.c | 13 +++--
> 1 file changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/tests/kms_psr_sink_crc.c b/tests/kms_psr_sink_crc.c
> index 1c25f2c8..ff257698 100644
> --- a/tests/kms_psr_sink_crc.c
> +++ b/tests/kms_psr_sink_crc.c
> @@ -34,6 +34,7 @@
> bool running_with_psr_disabled;
>
> #define CRC_BLACK ""
> +#define CRC_LEN 12
>
> enum operations {
> PAGE_FLIP,
> @@ -243,7 +244,7 @@ static void get_sink_crc(data_t *data, char *crc) {
> usleep(30);
>
> /* Black screen is always invalid */
> - igt_assert(strcmp(crc, CRC_BLACK) != 0);
> + igt_assert(strncmp(crc, CRC_BLACK, CRC_LEN + 1) != 0);
> }
>
> static bool is_green(char *crc)
> @@ -298,8 +299,8 @@ static void run_test(data_t *data)
> uint32_t handle = data->fb_white.gem_handle;
> igt_plane_t *test_plane;
> void *ptr;
> - char ref_crc[12];
> - char crc[12];
> + char ref_crc[CRC_LEN + 1] = {0};
> + char crc[CRC_LEN + 1] = {0};
> const char *expected = "";
>
> /* Confirm that screen became Green */
> @@ -356,9 +357,9 @@ static void run_test(data_t *data)
> memset(ptr, 0xff, data->mod_size);
> get_sink_crc(data, crc);
> if (data->test_plane == DRM_PLANE_TYPE_PRIMARY)
> - assert_or_manual(strcmp(ref_crc, crc) == 0, "screen
> WHITE");
> + assert_or_manual(strncmp(ref_crc, crc, CRC_LEN + 1)
> == 0, "screen WHITE");
> else
> - assert_or_manual(strcmp(ref_crc, crc) == 0,
> + assert_or_manual(strncmp(ref_crc, crc, CRC_LEN + 1)
> == 0,
> "GREEN background with WHITE box");
>
> igt_info("Waiting 10s...\n");
> @@ -401,7 +402,7 @@ static void run_test(data_t *data)
> break;
> }
> get_sink_crc(data, crc);
> - assert_or_manual(strcmp(ref_crc, crc) != 0, expected);
> + assert_or_manual(strncmp(ref_crc, crc, CRC_LEN + 1) != 0,
> expected);
> }
>
> static void test_cleanup(data_t *data) {
> --
> 2.11.0
>
> ___
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