Merge branch 'android-4.4-p' of https://android.googlesource.com/kernel/common into lineage-18.1-caf-msm8998

This brings LA.UM.9.2.r1-03300-SDMxx0.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
3628cdd31199d Merge 4.4.270 into android-4.4-p

Conflicts:
	drivers/mmc/core/core.c
	drivers/usb/core/hub.c
	kernel/trace/trace.c

Change-Id: I6b81471122341f9769ce9c65cbd0fedd5e908b38

6 files changed, 26 insertions, 1 deletions

diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index de179993e039..6851c4214ac6 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -15,3 +15,17 @@
  * with any version that can compile the kernel
  */
 #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
+
+/*
+ * Not all versions of clang implement the the type-generic versions
+ * of the builtin overflow checkers. Fortunately, clang implements
+ * __has_builtin allowing us to avoid awkward version
+ * checks. Unfortunately, we don't know which version of gcc clang
+ * pretends to be, so the macro may or may not be defined.
+ */
+#undef COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW
+#if __has_builtin(__builtin_mul_overflow) && \
+    __has_builtin(__builtin_add_overflow) && \
+    __has_builtin(__builtin_sub_overflow)
+#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1
+#endif
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 9485abe76b68..bce8a8f5b562 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -321,3 +321,7 @@
  * code
  */
 #define uninitialized_var(x) x = x
+
+#if GCC_VERSION >= 50100
+#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1
+#endif
diff --git a/include/linux/compiler-intel.h b/include/linux/compiler-intel.h
index d4c71132d07f..8c9897b1b953 100644
--- a/include/linux/compiler-intel.h
+++ b/include/linux/compiler-intel.h
@@ -43,3 +43,7 @@
 #define __builtin_bswap16 _bswap16
 #endif
 
+/*
+ * icc defines __GNUC__, but does not implement the builtin overflow checkers.
+ */
+#undef COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW
diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h
index e329ee2667e1..3a7fd222845e 100644
--- a/include/linux/console_struct.h
+++ b/include/linux/console_struct.h
@@ -29,6 +29,7 @@ struct vc_data {
 	unsigned int	vc_rows;
 	unsigned int	vc_size_row;		/* Bytes per row */
 	unsigned int	vc_scan_lines;		/* # of scan lines */
+	unsigned int	vc_cell_height;		/* CRTC character cell height */
 	unsigned long	vc_origin;		/* [!] Start of real screen */
 	unsigned long	vc_scr_end;		/* [!] End of real screen */
 	unsigned long	vc_visible_origin;	/* [!] Top of visible window */
diff --git a/include/linux/hid.h b/include/linux/hid.h
index f1fe147ecd4f..4ec9e7bfb10a 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -246,6 +246,8 @@ struct hid_item {
 #define HID_CP_SELECTION	0x000c0080
 #define HID_CP_MEDIASELECTION	0x000c0087
 #define HID_CP_SELECTDISC	0x000c00ba
+#define HID_CP_VOLUMEUP		0x000c00e9
+#define HID_CP_VOLUMEDOWN	0x000c00ea
 #define HID_CP_PLAYBACKSPEED	0x000c00f1
 #define HID_CP_PROXIMITY	0x000c0109
 #define HID_CP_SPEAKERSYSTEM	0x000c0160
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 161052477f77..6d8db1555260 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -235,7 +235,7 @@
  *
  *	Called when the device receives a TIOCGICOUNT ioctl. Passed a kernel
  *	structure to complete. This method is optional and will only be called
- *	if provided (otherwise EINVAL will be returned).
+ *	if provided (otherwise ENOTTY will be returned).
  */
 
 #include <linux/export.h>