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mei: bus: split RX and async notification callbacks

Ver código fonte 
Split callbacks for RX and async notification events on mei bus to
eliminate synchronization problems and to open way for RX optimizations.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Esse commit está contido em:
Alexander Usyskin
2016-11-16 22:51:29 +02:00
commit de Greg Kroah-Hartman
pai c110cdb171
commit 7c7a6077f5
5 arquivos alterados com 131 adições e 125 exclusões
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40
drivers/nfc/mei_phy.c
Ver arquivo

@@ -297,9 +297,11 @@ static int mei_nfc_recv(struct nfc_mei_phy *phy, u8 *buf, size_t length)
}
static void nfc_mei_event_cb(struct mei_cl_device *cldev, u32 events)
static void nfc_mei_rx_cb(struct mei_cl_device *cldev)
{
struct nfc_mei_phy *phy = mei_cldev_get_drvdata(cldev);
struct sk_buff *skb;
int reply_size;
if (!phy)
return;
@@ -307,27 +309,22 @@ static void nfc_mei_event_cb(struct mei_cl_device *cldev, u32 events)
if (phy->hard_fault != 0)
return;
if (events & BIT(MEI_CL_EVENT_RX)) {
struct sk_buff *skb;
int reply_size;
skb = alloc_skb(MEI_NFC_MAX_READ, GFP_KERNEL);
if (!skb)
return;
skb = alloc_skb(MEI_NFC_MAX_READ, GFP_KERNEL);
if (!skb)
return;
reply_size = mei_nfc_recv(phy, skb->data, MEI_NFC_MAX_READ);
if (reply_size < MEI_NFC_HEADER_SIZE) {
kfree_skb(skb);
return;
}
skb_put(skb, reply_size);
skb_pull(skb, MEI_NFC_HEADER_SIZE);
MEI_DUMP_SKB_IN("mei frame read", skb);
nfc_hci_recv_frame(phy->hdev, skb);
reply_size = mei_nfc_recv(phy, skb->data, MEI_NFC_MAX_READ);
if (reply_size < MEI_NFC_HEADER_SIZE) {
kfree_skb(skb);
return;
}
skb_put(skb, reply_size);
skb_pull(skb, MEI_NFC_HEADER_SIZE);
MEI_DUMP_SKB_IN("mei frame read", skb);
nfc_hci_recv_frame(phy->hdev, skb);
}
static int nfc_mei_phy_enable(void *phy_id)
@@ -358,8 +355,7 @@ static int nfc_mei_phy_enable(void *phy_id)
goto err;
}
r = mei_cldev_register_event_cb(phy->cldev, BIT(MEI_CL_EVENT_RX),
nfc_mei_event_cb);
r = mei_cldev_register_rx_cb(phy->cldev, nfc_mei_rx_cb);
if (r) {
pr_err("Event cb registration failed %d\n", r);
goto err;