git: be3d6ab9e147 - stable/14 - buf_ring: Remove PREFETCH_DEFINED
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Date: Mon, 02 Sep 2024 08:50:49 UTC
The branch stable/14 has been updated by andrew: URL: https://cgit.FreeBSD.org/src/commit/?id=be3d6ab9e14790848e9331db27d48f92d6160bef commit be3d6ab9e14790848e9331db27d48f92d6160bef Author: Andrew Turner <andrew@FreeBSD.org> AuthorDate: 2024-07-29 10:28:15 +0000 Commit: Andrew Turner <andrew@FreeBSD.org> CommitDate: 2024-09-02 08:49:38 +0000 buf_ring: Remove PREFETCH_DEFINED I'm not able to find anything in the tree that ever defined it. Remove as it's unused so is untested. Reviewed by: alc, imp, kib, markj Sponsored by: Arm Ltd Differential Revision: https://reviews.freebsd.org/D46148 (cherry picked from commit 5048308bdb76f40e88c9133658fc61d82158ded2) --- sys/sys/buf_ring.h | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/sys/sys/buf_ring.h b/sys/sys/buf_ring.h index cb18175c3a75..6bd3b91dcd04 100644 --- a/sys/sys/buf_ring.h +++ b/sys/sys/buf_ring.h @@ -165,9 +165,6 @@ static __inline void * buf_ring_dequeue_sc(struct buf_ring *br) { uint32_t cons_head, cons_next; -#ifdef PREFETCH_DEFINED - uint32_t cons_next_next; -#endif uint32_t prod_tail; void *buf; @@ -204,20 +201,10 @@ buf_ring_dequeue_sc(struct buf_ring *br) prod_tail = atomic_load_acq_32(&br->br_prod_tail); cons_next = (cons_head + 1) & br->br_cons_mask; -#ifdef PREFETCH_DEFINED - cons_next_next = (cons_head + 2) & br->br_cons_mask; -#endif if (cons_head == prod_tail) return (NULL); -#ifdef PREFETCH_DEFINED - if (cons_next != prod_tail) { - prefetch(br->br_ring[cons_next]); - if (cons_next_next != prod_tail) - prefetch(br->br_ring[cons_next_next]); - } -#endif br->br_cons_head = cons_next; buf = br->br_ring[cons_head];