Merge tag 'arm-vfp-refactor-for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux into devel-stabledevel-stable

Refactor VFP support code and reimplement in C

The VFP related changes to permit kernel mode NEON in softirq context
resulted in some issues regarding en/disabling of sofirqs from asm code,
and this made it clear that it would be better to handle more of it from
C code.

Given that we already have infrastructure that associates undefined
instruction exceptions with handler code based on value/mask pairs, we
can easily move the dispatch of VFP and NEON instructions to C code once
we reimplement the actual VFP support routine (which reasons about how
to deal with the exception and whether any emulation is needed) in C
code first.

With those out of the way, we can drop the partial decoding logic in asm
that reasons about which ISA is being used by user space, as the
remaining cases are all 32-bit ARM only. This leaves a FPE specific
routine with some iWMMXT logic that is easily duplicated in C as well,
allowing us to move the FPE asm code into the FPE asm source file, and
out of the shared entry code.

8 files changed, 31 insertions, 14 deletions

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 358db4a9f167..f8813c1e059b 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -286,9 +286,8 @@
 
 #define DP_DSC_MAX_BITS_PER_PIXEL_HI        0x068   /* eDP 1.4 */
 # define DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK  (0x3 << 0)
-# define DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT 8
-# define DP_DSC_MAX_BPP_DELTA_VERSION_MASK  0x06
-# define DP_DSC_MAX_BPP_DELTA_AVAILABILITY  0x08
+# define DP_DSC_MAX_BPP_DELTA_VERSION_MASK  (0x3 << 5)	/* eDP 1.5 & DP 2.0 */
+# define DP_DSC_MAX_BPP_DELTA_AVAILABILITY  (1 << 7)	/* eDP 1.5 & DP 2.0 */
 
 #define DP_DSC_DEC_COLOR_FORMAT_CAP         0x069
 # define DP_DSC_RGB                         (1 << 0)
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index 533d3ee7fe05..86f24a759268 100644
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -181,9 +181,8 @@ static inline u16
 drm_edp_dsc_sink_output_bpp(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE])
 {
 	return dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_LOW - DP_DSC_SUPPORT] |
-		(dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_HI - DP_DSC_SUPPORT] &
-		 DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK <<
-		 DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT);
+		((dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_HI - DP_DSC_SUPPORT] &
+		  DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK) << 8);
 }
 
 static inline u32
diff --git a/include/linux/dim.h b/include/linux/dim.h
index 6c5733981563..f343bc9aa2ec 100644
--- a/include/linux/dim.h
+++ b/include/linux/dim.h
@@ -236,8 +236,9 @@ void dim_park_tired(struct dim *dim);
  *
  * Calculate the delta between two samples (in data rates).
  * Takes into consideration counter wrap-around.
+ * Returned boolean indicates whether curr_stats are reliable.
  */
-void dim_calc_stats(struct dim_sample *start, struct dim_sample *end,
+bool dim_calc_stats(struct dim_sample *start, struct dim_sample *end,
 		    struct dim_stats *curr_stats);
 
 /**
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 0f40f379d75c..6ba71957851e 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -637,6 +637,23 @@ static inline __be16 vlan_get_protocol(const struct sk_buff *skb)
 	return __vlan_get_protocol(skb, skb->protocol, NULL);
 }
 
+/* This version of __vlan_get_protocol() also pulls mac header in skb->head */
+static inline __be16 vlan_get_protocol_and_depth(struct sk_buff *skb,
+						 __be16 type, int *depth)
+{
+	int maclen;
+
+	type = __vlan_get_protocol(skb, type, &maclen);
+
+	if (type) {
+		if (!pskb_may_pull(skb, maclen))
+			type = 0;
+		else if (depth)
+			*depth = maclen;
+	}
+	return type;
+}
+
 /* A getter for the SKB protocol field which will handle VLAN tags consistently
  * whether VLAN acceleration is enabled or not.
  */
diff --git a/include/linux/io_uring.h b/include/linux/io_uring.h
index 3399d979ee1c..7fe31b2cd02f 100644
--- a/include/linux/io_uring.h
+++ b/include/linux/io_uring.h
@@ -36,6 +36,11 @@ struct io_uring_cmd {
 	u8		pdu[32]; /* available inline for free use */
 };
 
+static inline const void *io_uring_sqe_cmd(const struct io_uring_sqe *sqe)
+{
+	return sqe->cmd;
+}
+
 #if defined(CONFIG_IO_URING)
 int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw,
 			      struct iov_iter *iter, void *ioucmd);
@@ -66,11 +71,6 @@ static inline void io_uring_free(struct task_struct *tsk)
 	if (tsk->io_uring)
 		__io_uring_free(tsk);
 }
-
-static inline const void *io_uring_sqe_cmd(const struct io_uring_sqe *sqe)
-{
-	return sqe->cmd;
-}
 #else
 static inline int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw,
 			      struct iov_iter *iter, void *ioucmd)
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 45c3d62e616d..95f33dadb2be 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -567,6 +567,7 @@
 #define PCI_DEVICE_ID_AMD_19H_M50H_DF_F3 0x166d
 #define PCI_DEVICE_ID_AMD_19H_M60H_DF_F3 0x14e3
 #define PCI_DEVICE_ID_AMD_19H_M70H_DF_F3 0x14f3
+#define PCI_DEVICE_ID_AMD_19H_M78H_DF_F3 0x12fb
 #define PCI_DEVICE_ID_AMD_CNB17H_F3	0x1703
 #define PCI_DEVICE_ID_AMD_LANCE		0x2000
 #define PCI_DEVICE_ID_AMD_LANCE_HOME	0x2001
diff --git a/include/net/bonding.h b/include/net/bonding.h
index a60a24923b55..0efef2a952b7 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -233,7 +233,7 @@ struct bonding {
 	 */
 	spinlock_t mode_lock;
 	spinlock_t stats_lock;
-	u8	 send_peer_notif;
+	u32	 send_peer_notif;
 	u8       igmp_retrans;
 #ifdef CONFIG_PROC_FS
 	struct   proc_dir_entry *proc_entry;
diff --git a/include/net/sock.h b/include/net/sock.h
index 8b7ed7167243..656ea89f60ff 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2718,7 +2718,7 @@ static inline void sock_recv_cmsgs(struct msghdr *msg, struct sock *sk,
 		__sock_recv_cmsgs(msg, sk, skb);
 	else if (unlikely(sock_flag(sk, SOCK_TIMESTAMP)))
 		sock_write_timestamp(sk, skb->tstamp);
-	else if (unlikely(sk->sk_stamp == SK_DEFAULT_STAMP))
+	else if (unlikely(sock_read_timestamp(sk) == SK_DEFAULT_STAMP))
 		sock_write_timestamp(sk, 0);
 }