diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-05-19 11:21:08 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-05-20 17:19:19 -0700 |
| commit | 9ee152ee3ee3568b1a3302f2bb816d5440e6f5f1 (patch) | |
| tree | c50b8ca27594e5289205c0b0b0ea6b6bbe151e58 /drivers/net/wwan | |
| parent | dc2df00af951569689ec39ce0a41b1dff7e3595e (diff) | |
| download | linux-9ee152ee3ee3568b1a3302f2bb816d5440e6f5f1.tar.bz2 | |
net: wwan: t7xx: use GFP_ATOMIC under spin lock in t7xx_cldma_gpd_set_next_ptr()
Sometimes t7xx_cldma_gpd_set_next_ptr() is called under spin lock,
so add 'gfp_mask' parameter in t7xx_cldma_gpd_set_next_ptr() to pass
the flag.
Fixes: 39d439047f1d ("net: wwan: t7xx: Add control DMA interface")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Link: https://lore.kernel.org/r/20220519032108.2996400-1-yangyingliang@huawei.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 | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/wwan/t7xx/t7xx_hif_cldma.c b/drivers/net/wwan/t7xx/t7xx_hif_cldma.c index 0c52801ed0de..6ff30cb8eb16 100644 --- a/drivers/net/wwan/t7xx/t7xx_hif_cldma.c +++ b/drivers/net/wwan/t7xx/t7xx_hif_cldma.c @@ -91,9 +91,9 @@ static void t7xx_cldma_gpd_set_next_ptr(struct cldma_gpd *gpd, dma_addr_t next_p } static int t7xx_cldma_alloc_and_map_skb(struct cldma_ctrl *md_ctrl, struct cldma_request *req, - size_t size) + size_t size, gfp_t gfp_mask) { - req->skb = __dev_alloc_skb(size, GFP_KERNEL); + req->skb = __dev_alloc_skb(size, gfp_mask); if (!req->skb) return -ENOMEM; @@ -174,7 +174,7 @@ static int t7xx_cldma_gpd_rx_from_q(struct cldma_queue *queue, int budget, bool spin_unlock_irqrestore(&queue->ring_lock, flags); req = queue->rx_refill; - ret = t7xx_cldma_alloc_and_map_skb(md_ctrl, req, queue->tr_ring->pkt_size); + ret = t7xx_cldma_alloc_and_map_skb(md_ctrl, req, queue->tr_ring->pkt_size, GFP_KERNEL); if (ret) return ret; @@ -402,7 +402,7 @@ static struct cldma_request *t7xx_alloc_rx_request(struct cldma_ctrl *md_ctrl, s if (!req->gpd) goto err_free_req; - val = t7xx_cldma_alloc_and_map_skb(md_ctrl, req, pkt_size); + val = t7xx_cldma_alloc_and_map_skb(md_ctrl, req, pkt_size, GFP_KERNEL); if (val) goto err_free_pool; @@ -801,7 +801,7 @@ static int t7xx_cldma_clear_rxq(struct cldma_ctrl *md_ctrl, int qnum) if (req->skb) continue; - ret = t7xx_cldma_alloc_and_map_skb(md_ctrl, req, rxq->tr_ring->pkt_size); + ret = t7xx_cldma_alloc_and_map_skb(md_ctrl, req, rxq->tr_ring->pkt_size, GFP_ATOMIC); if (ret) break; |