Merge tag 'driver-core-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull misc fixes from Greg KH:
 "Here are three small fixes for 4.6-rc4.

  Two fix up some lz4 issues with big endian systems, and the remaining
  one resolves a minor debugfs issue that was reported.

  All have been in linux-next with no reported issues"

* tag 'driver-core-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  lib: lz4: cleanup unaligned access efficiency detection
  lib: lz4: fixed zram with lz4 on big endian machines
  debugfs: Make automount point inodes permanently empty

2 files changed, 14 insertions, 13 deletions

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index bece948b363d..8580831ed237 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -457,7 +457,7 @@ struct dentry *debugfs_create_automount(const char *name,
         if (unlikely(!inode))
                 return failed_creating(dentry);
 
-        inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
+        make_empty_dir_inode(inode);
         inode->i_flags |= S_AUTOMOUNT;
         inode->i_private = data;
         dentry->d_fsdata = (void *)f;
diff --git a/lib/lz4/lz4defs.h b/lib/lz4/lz4defs.h
index abcecdc2d0f2..c79d7ea8a38e 100644
--- a/lib/lz4/lz4defs.h
+++ b/lib/lz4/lz4defs.h
@@ -11,8 +11,7 @@
 /*
  * Detects 64 bits mode
  */
-#if (defined(__x86_64__) || defined(__x86_64) || defined(__amd64__) \
-        || defined(__ppc64__) || defined(__LP64__))
+#if defined(CONFIG_64BIT)
 #define LZ4_ARCH64 1
 #else
 #define LZ4_ARCH64 0
@@ -25,9 +24,7 @@
 typedef struct _U16_S { u16 v; } U16_S;
 typedef struct _U32_S { u32 v; } U32_S;
 typedef struct _U64_S { u64 v; } U64_S;
-#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)             \
-        || defined(CONFIG_ARM) && __LINUX_ARM_ARCH__ >= 6       \
-        && defined(ARM_EFFICIENT_UNALIGNED_ACCESS)
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
 
 #define A16(x) (((U16_S *)(x))->v)
 #define A32(x) (((U32_S *)(x))->v)
@@ -35,6 +32,10 @@ typedef struct _U64_S { u64 v; } U64_S;
 
 #define PUT4(s, d) (A32(d) = A32(s))
 #define PUT8(s, d) (A64(d) = A64(s))
+
+#define LZ4_READ_LITTLEENDIAN_16(d, s, p)       \
+        (d = s - A16(p))
+
 #define LZ4_WRITE_LITTLEENDIAN_16(p, v) \
         do {    \
                 A16(p) = v; \
@@ -51,10 +52,13 @@ typedef struct _U64_S { u64 v; } U64_S;
 #define PUT8(s, d) \
         put_unaligned(get_unaligned((const u64 *) s), (u64 *) d)
 
-#define LZ4_WRITE_LITTLEENDIAN_16(p, v) \
-        do {    \
-                put_unaligned(v, (u16 *)(p)); \
-                p += 2; \
+#define LZ4_READ_LITTLEENDIAN_16(d, s, p)       \
+        (d = s - get_unaligned_le16(p))
+
+#define LZ4_WRITE_LITTLEENDIAN_16(p, v)                 \
+        do {                                            \
+                put_unaligned_le16(v, (u16 *)(p));      \
+                p += 2;                                 \
         } while (0)
 #endif
 
@@ -140,9 +144,6 @@ typedef struct _U64_S { u64 v; } U64_S;
 
 #endif
 
-#define LZ4_READ_LITTLEENDIAN_16(d, s, p) \
-        (d = s - get_unaligned_le16(p))
-
 #define LZ4_WILDCOPY(s, d, e)           \
         do {                            \
                 LZ4_COPYPACKET(s, d);   \