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| author | Jani Nikula <jani.nikula@intel.com> | 2024-08-14 13:00:34 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2024-08-16 12:07:45 +0300 |
| commit | 3942bb49728ad9e1f94d953a88af169a8f5d8099 (patch) | |
| tree | fec8c1b5af91b41dd8a3af66ee57c7ebce2405a0 /drivers/gpu/drm/i915/display/intel_dp.c | |
| parent | 8befe8fa5a4e4b30787b17e078d9d7b5cb92ea19 (diff) | |
| download | linux-3942bb49728ad9e1f94d953a88af169a8f5d8099.tar.gz linux-3942bb49728ad9e1f94d953a88af169a8f5d8099.tar.bz2 linux-3942bb49728ad9e1f94d953a88af169a8f5d8099.zip | |
string: add mem_is_zero() helper to check if memory area is all zeros
Almost two thirds of the memchr_inv() usages check if the memory area is
all zeros, with no interest in where in the buffer the first non-zero
byte is located. Checking for !memchr_inv(s, 0, n) is also not very
intuitive or discoverable. Add an explicit mem_is_zero() helper for this
use case.
Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240814100035.3100852-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp.c')
0 files changed, 0 insertions, 0 deletions