Hi Christian König. ________________________________ 发件人: Xiang Gao <[email protected]> 发送时间: 2026年4月15日 13:41:01 收件人: [email protected]; [email protected] 抄送: [email protected]; [email protected]; [email protected]; [email protected]; 高翔 主题: [External Mail][PATCH] dma-buf: fix stale @lock references in struct dma_buf documentation
[外部邮件] 此邮件来源于小米公司外部，请谨慎处理。若对邮件安全性存疑，请将邮件转发给[email protected]进行反馈 From: Xiang Gao <[email protected]> The kernel-doc comments for vmapping_counter and vmap_ptr in struct dma_buf reference "@lock" as the protecting lock, but struct dma_buf no longer has a "lock" member. The mutex was removed in favor of using the dma_resv lock exclusively. The implementation correctly uses dma_resv_assert_held(dmabuf->resv) in dma_buf_vmap() and dma_buf_vunmap(), so update the documentation to reference @resv instead. Signed-off-by: gaoxiang17 <[email protected]> --- include/linux/dma-buf.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index 133b9e637b55..ef6d93fd7a2c 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -322,13 +322,13 @@ struct dma_buf { * @vmapping_counter: * * Used internally to refcnt the vmaps returned by dma_buf_vmap(). - * Protected by @lock. + * Protected by @resv. */ unsigned vmapping_counter; /** * @vmap_ptr: - * The current vmap ptr if @vmapping_counter > 0. Protected by @lock. + * The current vmap ptr if @vmapping_counter > 0. Protected by @resv. */ struct iosys_map vmap_ptr; -- 2.34.1
