fs/ntfs3: Use kernel ALIGN macros over driver specific

The static checkers (Smatch) were complaining because QuadAlign() was
buggy.  If you try to align something higher than UINT_MAX it got
truncated to a u32.

Smatch warning was:
	fs/ntfs3/attrib.c:383 attr_set_size_res()
	warn: was expecting a 64 bit value instead of '~7'

So that this will not happen again we will change all these macros to
kernel made ones. This can also help some other static analyzing tools
to give us better warnings.

Patch was generated with Coccinelle script and after that some style
issue was hand fixed.

Coccinelle script:

virtual patch

@alloc depends on patch@
expression x;
@@
(
-	#define QuadAlign(n)		(((n) + 7u) & (~7u))
|
-	QuadAlign(x)
+	ALIGN(x, 8)
|
-	#define IsQuadAligned(n)	(!((size_t)(n)&7u))
|
-	IsQuadAligned(x)
+	IS_ALIGNED(x, 8)
|
-	#define Quad2Align(n)		(((n) + 15u) & (~15u))
|
-	Quad2Align(x)
+	ALIGN(x, 16)
|
-	#define IsQuad2Aligned(n)	(!((size_t)(n)&15u))
|
-	IsQuad2Aligned(x)
+	IS_ALIGNED(x, 16)
|
-	#define Quad4Align(n)		(((n) + 31u) & (~31u))
|
-	Quad4Align(x)
+	ALIGN(x, 32)
|
-	#define IsSizeTAligned(n)	(!((size_t)(n) & (sizeof(size_t) - 1)))
|
-	IsSizeTAligned(x)
+	IS_ALIGNED(x, sizeof(size_t))
|
-	#define DwordAlign(n)		(((n) + 3u) & (~3u))
|
-	DwordAlign(x)
+	ALIGN(x, 4)
|
-	#define IsDwordAligned(n)	(!((size_t)(n)&3u))
|
-	IsDwordAligned(x)
+	IS_ALIGNED(x, 4)
|
-	#define WordAlign(n)		(((n) + 1u) & (~1u))
|
-	WordAlign(x)
+	ALIGN(x, 2)
|
-	#define IsWordAligned(n)	(!((size_t)(n)&1u))
|
-	IsWordAligned(x)
+	IS_ALIGNED(x, 2)
|
)

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index 98871c895e77..6b17d46b9506 100644
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -26,9 +26,9 @@
 static inline size_t unpacked_ea_size(const struct EA_FULL *ea)
 {
 	return ea->size ? le32_to_cpu(ea->size)
-			: DwordAlign(struct_size(
-				  ea, name,
-				  1 + ea->name_len + le16_to_cpu(ea->elength)));
+			: ALIGN(struct_size(
+			      ea, name,
+			      1 + ea->name_len + le16_to_cpu(ea->elength)), 4);
 }
 
 static inline size_t packed_ea_size(const struct EA_FULL *ea)
@@ -289,7 +289,7 @@ static noinline int ntfs_set_ea(struct inode *inode, const char *name,
 		goto out;
 	}
 
-	add = DwordAlign(struct_size(ea_all, name, 1 + name_len + val_size));
+	add = ALIGN(struct_size(ea_all, name, 1 + name_len + val_size), 4);
 
 	err = ntfs_read_ea(ni, &ea_all, add, &info);
 	if (err)