diff options
| author | Rasmus Villemoes <ravi@prevas.dk> | 2025-05-07 14:12:44 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-06-18 08:05:04 -0600 |
| commit | f5fa73a625f671152aa65be4b039060f8baed4cc (patch) | |
| tree | 1fff6aea67604714bd0204130e59980838521167 | |
| parent | c1c2b5c6a4c09fe57933b70ec6289795f732ac83 (diff) | |
treewide: drop no-op prefetch() calls
These all end up using the no-op prefetch() defined in linux/list.h,
because the only possible real implementation is in
arch/mips/include/asm/processor.h, which is behing
CONFIG_CPU_HAS_PREFETCH which is nowhere defined.
In order to be able to drop that fallback definition from list.h,
first remove all uses.
Signed-off-by: Rasmus Villemoes <ravi@prevas.dk>
| -rw-r--r-- | drivers/net/mvpp2.c | 1 | ||||
| -rw-r--r-- | drivers/net/octeontx/nicvf_main.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/at91_udc.c | 1 | ||||
| -rw-r--r-- | drivers/usb/musb-new/musb_core.c | 2 |
4 files changed, 0 insertions, 6 deletions
diff --git a/drivers/net/mvpp2.c b/drivers/net/mvpp2.c index ae545fe229c..184c1f9a46a 100644 --- a/drivers/net/mvpp2.c +++ b/drivers/net/mvpp2.c @@ -3876,7 +3876,6 @@ mvpp2_rxq_next_desc_get(struct mvpp2_rx_queue *rxq) int rx_desc = rxq->next_desc_to_proc; rxq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(rxq, rx_desc); - prefetch(rxq->descs + rxq->next_desc_to_proc); return rxq->descs + rx_desc; } diff --git a/drivers/net/octeontx/nicvf_main.c b/drivers/net/octeontx/nicvf_main.c index 6e4d0a05121..27d0327c88a 100644 --- a/drivers/net/octeontx/nicvf_main.c +++ b/drivers/net/octeontx/nicvf_main.c @@ -279,8 +279,6 @@ int nicvf_cq_handler(struct nicvf *nic, void **ppkt, int *pkt_len) cq_desc = (struct cqe_rx_t *)GET_CQ_DESC(cq, cqe_head); cqe_head++; cqe_head &= (cq->dmem.q_len - 1); - /* Initiate prefetch for next descriptor */ - prefetch((struct cqe_rx_t *)GET_CQ_DESC(cq, cqe_head)); switch (cq_desc->cqe_type) { case CQE_TYPE_RX: diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 86b2cbf3f6a..b3c780a4e35 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -228,7 +228,6 @@ static int write_fifo(struct at91_ep *ep, struct at91_request *req) } buf = req->req.buf + req->req.actual; - prefetch(buf); total = req->req.length - req->req.actual; if (ep->ep.maxpacket < total) { count = ep->ep.maxpacket; diff --git a/drivers/usb/musb-new/musb_core.c b/drivers/usb/musb-new/musb_core.c index 6375be741ae..a14b127dc37 100644 --- a/drivers/usb/musb-new/musb_core.c +++ b/drivers/usb/musb-new/musb_core.c @@ -223,8 +223,6 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src) struct musb *musb = hw_ep->musb; void __iomem *fifo = hw_ep->fifo; - prefetch((u8 *)src); - dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n", 'T', hw_ep->epnum, fifo, len, src); |