netdev - [PATCH v2 4/5] net: qrtr: Add GFP flags parameter to qrtr_alloc_ctrl

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Date:   Fri,  6 Nov 2020 18:33:29 +0100
From:   Loic Poulain <loic.poulain@...aro.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     bjorn.andersson@...aro.org, manivannan.sadhasivam@...aro.org,
        cjhuang@...eaurora.org, netdev@...r.kernel.org,
        Loic Poulain <loic.poulain@...aro.org>
Subject: [PATCH v2 4/5] net: qrtr: Add GFP flags parameter to qrtr_alloc_ctrl_packet

This will be requested for allocating control packet in atomic context.

Signed-off-by: Loic Poulain <loic.poulain@...aro.org>
---
 net/qrtr/qrtr.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index 1d12408..a05d01e 100644
--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -526,18 +526,20 @@ EXPORT_SYMBOL_GPL(qrtr_endpoint_post);
 /**
  * qrtr_alloc_ctrl_packet() - allocate control packet skb
  * @pkt: reference to qrtr_ctrl_pkt pointer
+ * @flags: the type of memory to allocate
  *
  * Returns newly allocated sk_buff, or NULL on failure
  *
  * This function allocates a sk_buff large enough to carry a qrtr_ctrl_pkt and
  * on success returns a reference to the control packet in @pkt.
  */
-static struct sk_buff *qrtr_alloc_ctrl_packet(struct qrtr_ctrl_pkt **pkt)
+static struct sk_buff *qrtr_alloc_ctrl_packet(struct qrtr_ctrl_pkt **pkt,
+					      gfp_t flags)
 {
 	const int pkt_len = sizeof(struct qrtr_ctrl_pkt);
 	struct sk_buff *skb;
 
-	skb = alloc_skb(QRTR_HDR_MAX_SIZE + pkt_len, GFP_KERNEL);
+	skb = alloc_skb(QRTR_HDR_MAX_SIZE + pkt_len, flags);
 	if (!skb)
 		return NULL;
 
@@ -606,7 +608,7 @@ void qrtr_endpoint_unregister(struct qrtr_endpoint *ep)
 	mutex_unlock(&node->ep_lock);
 
 	/* Notify the local controller about the event */
-	skb = qrtr_alloc_ctrl_packet(&pkt);
+	skb = qrtr_alloc_ctrl_packet(&pkt, GFP_KERNEL);
 	if (skb) {
 		pkt->cmd = cpu_to_le32(QRTR_TYPE_BYE);
 		qrtr_local_enqueue(NULL, skb, QRTR_TYPE_BYE, &src, &dst);
@@ -663,7 +665,7 @@ static void qrtr_port_remove(struct qrtr_sock *ipc)
 	to.sq_node = QRTR_NODE_BCAST;
 	to.sq_port = QRTR_PORT_CTRL;
 
-	skb = qrtr_alloc_ctrl_packet(&pkt);
+	skb = qrtr_alloc_ctrl_packet(&pkt, GFP_KERNEL);
 	if (skb) {
 		pkt->cmd = cpu_to_le32(QRTR_TYPE_DEL_CLIENT);
 		pkt->client.node = cpu_to_le32(ipc->us.sq_node);
@@ -987,7 +989,7 @@ static int qrtr_send_resume_tx(struct qrtr_cb *cb)
 	if (!node)
 		return -EINVAL;
 
-	skb = qrtr_alloc_ctrl_packet(&pkt);
+	skb = qrtr_alloc_ctrl_packet(&pkt, GFP_KERNEL);
 	if (!skb)
 		return -ENOMEM;
 
-- 
2.7.4