diff options
| author |   Ricardo Martinez <ricardo.martinez@linux.intel.com> | 2022-05-13 10:33:59 -0700 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-05-16 13:45:26 -0700 |
| commit | 262d98b1193fec68c66f3d57772b72240fc4b9da (patch) | |
| tree | 567f9e12acbc92f2fa3f16f8af9fb84fd18cbba3 /drivers/net/wwan | |
| parent | Merge branch 'mptcp-updates-for-net-next' (diff) | |
| download | linux-dev-262d98b1193fec68c66f3d57772b72240fc4b9da.tar.xz linux-dev-262d98b1193fec68c66f3d57772b72240fc4b9da.zip | |
net: wwan: t7xx: Avoid calls to skb_data_area_size()
skb_data_area_size() helper was used to calculate the size of the
DMA mapped buffer passed to the HW. Instead of doing this, use the
size passed to allocate the skbs.
Signed-off-by: Ricardo Martinez <ricardo.martinez@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/wwan')
| -rw-r--r-- | drivers/net/wwan/t7xx/t7xx_hif_cldma.c | 7 | ||||
| -rw-r--r-- | drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c | 6 |
2 files changed, 5 insertions, 8 deletions
diff --git a/drivers/net/wwan/t7xx/t7xx_hif_cldma.c b/drivers/net/wwan/t7xx/t7xx_hif_cldma.c index 46066dcd2607..0c52801ed0de 100644 --- a/drivers/net/wwan/t7xx/t7xx_hif_cldma.c +++ b/drivers/net/wwan/t7xx/t7xx_hif_cldma.c @@ -97,8 +97,7 @@ static int t7xx_cldma_alloc_and_map_skb(struct cldma_ctrl *md_ctrl, struct cldma if (!req->skb) return -ENOMEM; - req->mapped_buff = dma_map_single(md_ctrl->dev, req->skb->data, - skb_data_area_size(req->skb), DMA_FROM_DEVICE); + req->mapped_buff = dma_map_single(md_ctrl->dev, req->skb->data, size, DMA_FROM_DEVICE); if (dma_mapping_error(md_ctrl->dev, req->mapped_buff)) { dev_kfree_skb_any(req->skb); req->skb = NULL; @@ -154,7 +153,7 @@ static int t7xx_cldma_gpd_rx_from_q(struct cldma_queue *queue, int budget, bool if (req->mapped_buff) { dma_unmap_single(md_ctrl->dev, req->mapped_buff, - skb_data_area_size(skb), DMA_FROM_DEVICE); + queue->tr_ring->pkt_size, DMA_FROM_DEVICE); req->mapped_buff = 0; } @@ -376,7 +375,7 @@ static void t7xx_cldma_ring_free(struct cldma_ctrl *md_ctrl, list_for_each_entry_safe(req_cur, req_next, &ring->gpd_ring, entry) { if (req_cur->mapped_buff && req_cur->skb) { dma_unmap_single(md_ctrl->dev, req_cur->mapped_buff, - skb_data_area_size(req_cur->skb), tx_rx); + ring->pkt_size, tx_rx); req_cur->mapped_buff = 0; } diff --git a/drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c b/drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c index 35a8a0d7c1ee..91a0eb19e0d8 100644 --- a/drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c +++ b/drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c @@ -151,14 +151,12 @@ static bool t7xx_alloc_and_map_skb_info(const struct dpmaif_ctrl *dpmaif_ctrl, { dma_addr_t data_bus_addr; struct sk_buff *skb; - size_t data_len; skb = __dev_alloc_skb(size, GFP_KERNEL); if (!skb) return false; - data_len = skb_data_area_size(skb); - data_bus_addr = dma_map_single(dpmaif_ctrl->dev, skb->data, data_len, DMA_FROM_DEVICE); + data_bus_addr = dma_map_single(dpmaif_ctrl->dev, skb->data, size, DMA_FROM_DEVICE); if (dma_mapping_error(dpmaif_ctrl->dev, data_bus_addr)) { dev_err_ratelimited(dpmaif_ctrl->dev, "DMA mapping error\n"); dev_kfree_skb_any(skb); @@ -167,7 +165,7 @@ static bool t7xx_alloc_and_map_skb_info(const struct dpmaif_ctrl *dpmaif_ctrl, cur_skb->skb = skb; cur_skb->data_bus_addr = data_bus_addr; - cur_skb->data_len = data_len; + cur_skb->data_len = size; return true; } |