The patch titled
befs: annotate fs32 on tests for superblock endianness
has been added to the -mm tree. Its filename is
befs-annotate-fs32-on-tests-for-superblock-endianness.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: befs: annotate fs32 on tests for superblock endianness
From: Harvey Harrison <harvey.harrison@xxxxxxxxx>
Does compile-time byteswapping rather than runtime.
Noticed by sparse:
fs/befs/super.c:29:6: warning: cast to restricted __le32
fs/befs/super.c:29:6: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/linuxvfs.c:811:7: warning: cast to restricted __le32
fs/befs/linuxvfs.c:811:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
Signed-off-by: Harvey Harrison <harvey.harrison@xxxxxxxxx>
Cc: "Sergey S. Kostyliov" <rathamahata@xxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/befs/befs_fs_types.h | 4 ++++
fs/befs/linuxvfs.c | 4 ++--
fs/befs/super.c | 6 +++---
3 files changed, 9 insertions(+), 5 deletions(-)
diff -puN fs/befs/befs_fs_types.h~befs-annotate-fs32-on-tests-for-superblock-endianness fs/befs/befs_fs_types.h
--- a/fs/befs/befs_fs_types.h~befs-annotate-fs32-on-tests-for-superblock-endianness
+++ a/fs/befs/befs_fs_types.h
@@ -55,8 +55,12 @@ enum super_flags {
};
#define BEFS_BYTEORDER_NATIVE 0x42494745
+#define BEFS_BYTEORDER_NATIVE_LE (__force fs32)cpu_to_le32(BEFS_BYTEORDER_NATIVE)
+#define BEFS_BYTEORDER_NATIVE_BE (__force fs32)cpu_to_be32(BEFS_BYTEORDER_NATIVE)
#define BEFS_SUPER_MAGIC BEFS_SUPER_MAGIC1
+#define BEFS_SUPER_MAGIC1_LE (__force fs32)cpu_to_le32(BEFS_SUPER_MAGIC1)
+#define BEFS_SUPER_MAGIC1_BE (__force fs32)cpu_to_be32(BEFS_SUPER_MAGIC1)
/*
* Flags of inode
diff -puN fs/befs/linuxvfs.c~befs-annotate-fs32-on-tests-for-superblock-endianness fs/befs/linuxvfs.c
--- a/fs/befs/linuxvfs.c~befs-annotate-fs32-on-tests-for-superblock-endianness
+++ a/fs/befs/linuxvfs.c
@@ -808,8 +808,8 @@ befs_fill_super(struct super_block *sb,
/* account for offset of super block on x86 */
disk_sb = (befs_super_block *) bh->b_data;
- if ((le32_to_cpu(disk_sb->magic1) == BEFS_SUPER_MAGIC1) ||
- (be32_to_cpu(disk_sb->magic1) == BEFS_SUPER_MAGIC1)) {
+ if ((disk_sb->magic1 == BEFS_SUPER_MAGIC1_LE) ||
+ (disk_sb->magic1 == BEFS_SUPER_MAGIC1_BE)) {
befs_debug(sb, "Using PPC superblock location");
} else {
befs_debug(sb, "Using x86 superblock location");
diff -puN fs/befs/super.c~befs-annotate-fs32-on-tests-for-superblock-endianness fs/befs/super.c
--- a/fs/befs/super.c~befs-annotate-fs32-on-tests-for-superblock-endianness
+++ a/fs/befs/super.c
@@ -26,10 +26,10 @@ befs_load_sb(struct super_block *sb, bef
befs_sb_info *befs_sb = BEFS_SB(sb);
/* Check the byte order of the filesystem */
- if (le32_to_cpu(disk_sb->fs_byte_order) == BEFS_BYTEORDER_NATIVE)
+ if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_LE)
befs_sb->byte_order = BEFS_BYTESEX_LE;
- else if (be32_to_cpu(disk_sb->fs_byte_order) == BEFS_BYTEORDER_NATIVE)
- befs_sb->byte_order = BEFS_BYTESEX_BE;
+ else if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_BE)
+ befs_sb->byte_order = BEFS_BYTESEX_BE;
befs_sb->magic1 = fs32_to_cpu(sb, disk_sb->magic1);
befs_sb->magic2 = fs32_to_cpu(sb, disk_sb->magic2);
_
Patches currently in -mm which might be from harvey.harrison@xxxxxxxxx are
origin.patch
linux-next.patch
cifs-remove-global_extern-macro.patch
ppc-use-the-common-ascii-hex-helpers.patch
ppc-use-the-common-ascii-hex-helpers-fix.patch
input-ads7846c-sparse-lock-annotation.patch
mtd-diskonchipc-fix-sparse-endian-warnings.patch
net-use-the-common-ascii-hex-helpers.patch
isdn-use-the-common-ascii-hex-helpers.patch
scsi-replace-__inline-with-inline.patch
scsi-aic79xx_core-fix-shadowed-variables-add-statics.patch
scsi-aic79xx-aic79xx_pcic-fix-shadowed-variables.patch
scsi-gdthc-use-unaligned-access-helpers.patch
scsi-gdthc-use-unaligned-access-helpers-checkpatch-fixes.patch
scsi-use-the-common-hex_asc-array-rather-than-a-private-one.patch
xfs-use-get_unaligned_-helpers.patch
xtensa-replace-remaining-__function__-occurences.patch
olpc-olpc_batteryc-sparse-endian-annotations.patch
befs-annotate-fs32-on-tests-for-superblock-endianness.patch
byteorder-add-a-new-include-linux-swabh-to-define-byteswapping-functions.patch
byteorder-add-include-linux-byteorderh-to-define-endian-helpers.patch
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