From mboxrd@z Thu Jan 1 00:00:00 1970 From: Claude Code Review Bot To: dri-devel-reviews@example.com Subject: Claude review: dma-buf/udmabuf: skip redundant cpu sync to fix cacheline EEXIST warning Date: Tue, 31 Mar 2026 16:42:34 +1000 Message-ID: In-Reply-To: <20260331061657.79983-1-mikhail.v.gavrilov@gmail.com> References: <20260331061657.79983-1-mikhail.v.gavrilov@gmail.com> X-Mailer: Claude Code Patch Reviewer Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Overall Series Review Subject: dma-buf/udmabuf: skip redundant cpu sync to fix cacheline EEXIST w= arning Author: Mikhail Gavrilov Patches: 1 Reviewed: 2026-03-31T16:42:34.337924 --- This is a clean, well-justified single-patch fix. The commit message is tho= rough =E2=80=94 it documents the call chain triggering the warning, explain= s why `DMA_ATTR_SKIP_CPU_SYNC` is appropriate, cites precedent from other e= xporters (`drm_gem_map_dma_buf`, `amdgpu_dma_buf_map`), and explains why th= e CPU sync is redundant given `begin_cpu_udmabuf`/`end_cpu_udmabuf` already= handle explicit cache synchronization. The fix is correct and minimal. The `Fixes:` tag and `Cc: stable` are appro= priate since this is a regression fix for a real user-visible warning trigg= ered during normal video playback. **Verdict: Looks good.** --- Generated by Claude Code Patch Reviewer