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From: Jani Nikula <jani.nikula@intel.com>
To: Kees Cook <kees@kernel.org>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>,
	linux-hardening@vger.kernel.org, intel-gfx@lists.freedesktop.org
Subject: i915 utils: range_overflows*()
Date: Fri, 30 May 2025 10:44:31 +0300	[thread overview]
Message-ID: <cd0ea72c6cab6c478336cd1bb5b517a9fe7a150d@intel.com> (raw)


Hi Kees -

drivers/gpu/drm/i915/i915_utils.h has a handful of helper macros for
checking range overflows: range_overflows(), range_overflows_t(),
range_overflows_end(), and range_overflows_end_t().

Looks like the first one has also been copy-pasted to
include/drm/drm_buddy.h.

Feels like include/linux/overflow.h would be the right place for (some
version of) them.

Thoughts?


BR,
Jani.

-- 
Jani Nikula, Intel

             reply	other threads:[~2025-05-30  7:44 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-30  7:44 Jani Nikula [this message]
2025-05-30 17:28 ` i915 utils: range_overflows*() Kees Cook
2025-06-02 13:10   ` Jani Nikula
2025-06-02 18:20     ` Kees Cook
2025-06-04  8:59       ` [RFC] drm/i915/utils: document range_overflows*() macros Jani Nikula
2025-06-04  9:25       ` ✗ Fi.CI.CHECKPATCH: warning for " Patchwork
2025-06-04  9:25       ` ✗ Fi.CI.SPARSE: " Patchwork
2025-06-04  9:49       ` ✓ i915.CI.BAT: success " Patchwork
2025-06-04 11:23       ` ✗ i915.CI.Full: failure " Patchwork

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