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authorTakashi Iwai <tiwai@suse.de>2022-12-06 11:13:26 +0100
committerTakashi Iwai <tiwai@suse.de>2022-12-06 11:13:26 +0100
commit8ec2d95f50c06f5cf2a2b94bcdf47f494f91ad55 (patch)
tree2d6c60670a5a1575780b080e00ca2b26d62f5403 /drivers/net/mctp/mctp-i2c.c
parentcf2ea3c86ad90d63d1c572b43e1ca9276b0357ad (diff)
parent9472382db38452df15f9f2f74b1dff34848e56b2 (diff)
downloadlinux-8ec2d95f50c06f5cf2a2b94bcdf47f494f91ad55.tar.bz2
Merge tag 'asoc-v6.2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v6.2 This is a fairly sedate release for the core code, but there's been a lot of driver work especially around the x86 platforms and device tree updates: - More cleanups of the DAPM code from Morimoto-san. - Factoring out of mapping hw_params onto SoundWire configuration by Charles Keepax. - The ever ongoing overhauls of the Intel DSP code continue, including support for loading libraries and probes with IPC4 on SOF. - Support for more sample formats on JZ4740. - Lots of device tree conversions and fixups. - Support for Allwinner D1, a range of AMD and Intel systems, Mediatek systems with multiple DMICs, Nuvoton NAU8318, NXP fsl_rpmsg and i.MX93, Qualcomm AudioReach Enable, MFC and SAL, RealTek RT1318 and Rockchip RK3588 There's more cross tree updates than usual, though all fairly minor: - Some OMAP board file updates that were depedencies for removing their providers in ASoC, as part of a wider effort removing the support for the relevant OMAP platforms. - A new I2C API required for updates to the new I2C probe API. - A DRM update making use of a new API for fixing the capabilities advertised via hdmi-codec. Since this is being sent early I might send some more stuff if you've not yet sent your pull request and there's more come in.
Diffstat (limited to 'drivers/net/mctp/mctp-i2c.c')
-rw-r--r--drivers/net/mctp/mctp-i2c.c47
1 files changed, 32 insertions, 15 deletions
diff --git a/drivers/net/mctp/mctp-i2c.c b/drivers/net/mctp/mctp-i2c.c
index 0762c735dd8a..1d67a3ca1fd1 100644
--- a/drivers/net/mctp/mctp-i2c.c
+++ b/drivers/net/mctp/mctp-i2c.c
@@ -43,6 +43,7 @@
enum {
MCTP_I2C_FLOW_STATE_NEW = 0,
MCTP_I2C_FLOW_STATE_ACTIVE,
+ MCTP_I2C_FLOW_STATE_INVALID,
};
/* List of all struct mctp_i2c_client
@@ -374,12 +375,18 @@ mctp_i2c_get_tx_flow_state(struct mctp_i2c_dev *midev, struct sk_buff *skb)
*/
if (!key->valid) {
state = MCTP_I2C_TX_FLOW_INVALID;
-
- } else if (key->dev_flow_state == MCTP_I2C_FLOW_STATE_NEW) {
- key->dev_flow_state = MCTP_I2C_FLOW_STATE_ACTIVE;
- state = MCTP_I2C_TX_FLOW_NEW;
} else {
- state = MCTP_I2C_TX_FLOW_EXISTING;
+ switch (key->dev_flow_state) {
+ case MCTP_I2C_FLOW_STATE_NEW:
+ key->dev_flow_state = MCTP_I2C_FLOW_STATE_ACTIVE;
+ state = MCTP_I2C_TX_FLOW_NEW;
+ break;
+ case MCTP_I2C_FLOW_STATE_ACTIVE:
+ state = MCTP_I2C_TX_FLOW_EXISTING;
+ break;
+ default:
+ state = MCTP_I2C_TX_FLOW_INVALID;
+ }
}
spin_unlock_irqrestore(&key->lock, flags);
@@ -617,21 +624,31 @@ static void mctp_i2c_release_flow(struct mctp_dev *mdev,
{
struct mctp_i2c_dev *midev = netdev_priv(mdev->dev);
+ bool queue_release = false;
unsigned long flags;
spin_lock_irqsave(&midev->lock, flags);
- midev->release_count++;
- spin_unlock_irqrestore(&midev->lock, flags);
-
- /* Ensure we have a release operation queued, through the fake
- * marker skb
+ /* if we have seen the flow/key previously, we need to pair the
+ * original lock with a release
*/
- spin_lock(&midev->tx_queue.lock);
- if (!midev->unlock_marker.next)
- __skb_queue_tail(&midev->tx_queue, &midev->unlock_marker);
- spin_unlock(&midev->tx_queue.lock);
+ if (key->dev_flow_state == MCTP_I2C_FLOW_STATE_ACTIVE) {
+ midev->release_count++;
+ queue_release = true;
+ }
+ key->dev_flow_state = MCTP_I2C_FLOW_STATE_INVALID;
+ spin_unlock_irqrestore(&midev->lock, flags);
- wake_up(&midev->tx_wq);
+ if (queue_release) {
+ /* Ensure we have a release operation queued, through the fake
+ * marker skb
+ */
+ spin_lock(&midev->tx_queue.lock);
+ if (!midev->unlock_marker.next)
+ __skb_queue_tail(&midev->tx_queue,
+ &midev->unlock_marker);
+ spin_unlock(&midev->tx_queue.lock);
+ wake_up(&midev->tx_wq);
+ }
}
static const struct net_device_ops mctp_i2c_ops = {