ASoC: Fix races on creation of SDCA jack detection

Charles Keepax <ckeepax@opensource.cirrus.com> says:

Currently there exists a couple races that can result in the DAPM graph
coming up in a state that doesn't match the hardware with respect to
SDCA jack detection. This series fixes these up by adding a component
level fixup_controls helper into the asoc core and shuffling around the
IRQ requests from the SDCA side.

The core creates DAPM widgets/routes quite a long time before
it creates the associated ALSA control, and the jack detection
IRQ is currently registered in component probe. At the time of
component probe, the DAPM widgets exist, shortly after this the
DAPM routes are added. At the time the DAPM routes are added the
register value for the control is checked and the appropriate path
is connected. The existing handling in the SDCA jack IRQ handles
the case the control doesn't exist and updates the registers
directly, which works until the DAPM routes are added.  After the
routes are added the DAPM graph has already set connected on a
particular DAPM path, which will not be updated until an IRQ is
received when the control is present. Thus those updates are
usually not reflected in the resulting DAPM graph which can lead
to the audio path being erroneously powered on/off.

Link: https://patch.msgid.link/20260721143636.361814-1-ckeepax@opensource.cirrus.com

3 files changed, 24 insertions, 24 deletions

diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index 9b576603b3f1..0a13baf3d8d1 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -598,7 +598,7 @@ struct btrfs_ioctl_search_args_v2 {
 	__u64 buf_size;		   /* in - size of buffer
 					    * out - on EOVERFLOW: needed size
 					    *       to store item */
-	__u64 buf[];                       /* out - found items */
+	__u8 buf[];                        /* out - found items */
 };
 
 /* With a @src_length of zero, the range from @src_offset->EOF is cloned! */
diff --git a/include/uapi/linux/io_uring/query.h b/include/uapi/linux/io_uring/query.h
index 1a68eca7c6b4..e6493e4a7a4d 100644
--- a/include/uapi/linux/io_uring/query.h
+++ b/include/uapi/linux/io_uring/query.h
@@ -23,7 +23,7 @@ enum {
 	IO_URING_QUERY_OPCODES			= 0,
 	IO_URING_QUERY_ZCRX			= 1,
 	IO_URING_QUERY_SCQ			= 2,
-	IO_URING_QUERY_ZCRX_NOTIF		= 3,
+	IO_URING_QUERY_ZCRX_EVENT		= 3,
 
 	__IO_URING_QUERY_MAX,
 };
@@ -63,13 +63,13 @@ struct io_uring_query_zcrx {
 	__u64 __resv2;
 };
 
-struct io_uring_query_zcrx_notif {
-	/* Bitmask of supported ZCRX_NOTIF_* flags */
-	__u32 notif_flags;
-	/* Size of io_uring_zcrx_notif_stats */
-	__u32 notif_stats_size;
+struct io_uring_query_zcrx_event {
+	/* Bitmask of supported ZCRX_EVENT_* flags */
+	__u32 event_flags;
+	/* Size of zcrx_stats */
+	__u32 stats_size;
 	/* Required alignment for the stats struct within the region (ie stats_offset) */
-	__u32 notif_stats_off_alignment;
+	__u32 stats_off_alignment;
 	__u32 __resv1;
 	__u64 __resv2[4];
 };
diff --git a/include/uapi/linux/io_uring/zcrx.h b/include/uapi/linux/io_uring/zcrx.h
index 15c05c45ce36..e01bc0e34b24 100644
--- a/include/uapi/linux/io_uring/zcrx.h
+++ b/include/uapi/linux/io_uring/zcrx.h
@@ -65,30 +65,30 @@ enum zcrx_features {
 	 * value in struct io_uring_zcrx_ifq_reg::rx_buf_len.
 	 */
 	ZCRX_FEATURE_RX_PAGE_SIZE	= 1 << 0,
-	ZCRX_FEATURE_NOTIFICATION	= 1 << 1,
+	ZCRX_FEATURE_EVENT		= 1 << 1,
 };
 
-enum zcrx_notification_type {
-	ZCRX_NOTIF_NO_BUFFERS,
-	ZCRX_NOTIF_COPY,
+enum zcrx_event_type {
+	ZCRX_EVENT_ALLOC_FAIL,
+	ZCRX_EVENT_COPY,
 
-	__ZCRX_NOTIF_TYPE_LAST,
+	__ZCRX_EVENT_TYPE_LAST,
 };
 
-enum zcrx_notification_desc_flags {
-	/* If set, stats_offset holds a valid offset to a notif_stats struct */
-	ZCRX_NOTIF_DESC_FLAG_STATS = 1 << 0,
+enum zcrx_event_desc_flags {
+	/* If set, stats_offset holds a valid offset to a zcrx_stats struct */
+	ZCRX_EVENT_DESC_FLAG_STATS = 1 << 0,
 };
 
-struct zcrx_notif_stats {
+struct zcrx_stats {
 	__u64	copy_count;	/* cumulative copy-fallback CQEs */
 	__u64	copy_bytes;	/* cumulative bytes copied */
 };
 
-struct zcrx_notification_desc {
+struct zcrx_event_desc {
 	__u64	user_data;
 	__u32	type_mask;
-	__u32	flags; /* see enum zcrx_notification_desc_flags */
+	__u32	flags; /* see enum zcrx_event_desc_flags */
 	__u64	stats_offset; /* offset from the beginning of refill ring region for stats */
 	__u64	__resv2[9];
 };
@@ -108,14 +108,14 @@ struct io_uring_zcrx_ifq_reg {
 	struct io_uring_zcrx_offsets offsets;
 	__u32	zcrx_id;
 	__u32	rx_buf_len;
-	__u64	notif_desc; /* see struct zcrx_notification_desc */
+	__u64	event_desc; /* see struct zcrx_event_desc */
 	__u64	__resv[2];
 };
 
 enum zcrx_ctrl_op {
 	ZCRX_CTRL_FLUSH_RQ,
 	ZCRX_CTRL_EXPORT,
-	ZCRX_CTRL_ARM_NOTIFICATION,
+	ZCRX_CTRL_ARM_EVENT,
 
 	__ZCRX_CTRL_LAST,
 };
@@ -129,8 +129,8 @@ struct zcrx_ctrl_export {
 	__u32 		__resv1[11];
 };
 
-struct zcrx_ctrl_arm_notif {
-	__u32		notif_type;
+struct zcrx_ctrl_arm_event {
+	__u32		event_type; /* see enum zcrx_event_type */
 	__u32		__resv[11];
 };
 
@@ -142,7 +142,7 @@ struct zcrx_ctrl {
 	union {
 		struct zcrx_ctrl_export		zc_export;
 		struct zcrx_ctrl_flush_rq	zc_flush;
-		struct zcrx_ctrl_arm_notif	zc_arm_notif;
+		struct zcrx_ctrl_arm_event	zc_arm_event;
 	};
 };