Re: [PATCH] fs/ntfs3: fix wrong cast in xattr.c

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On 15.11.2022 12:17, Daniel Pinto wrote:
cpu_to_be32 and be32_to_cpu respectively return and receive
__be32, change the cast to the correct types.

Fixes the following sparse warnings:
fs/ntfs3/xattr.c:811:48: sparse: sparse: incorrect type in
                          assignment (different base types)
fs/ntfs3/xattr.c:901:34: sparse: sparse: cast to restricted __be32

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Daniel Pinto <danielpinto52@xxxxxxxxx>
---
  fs/ntfs3/xattr.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index 8620a7b4b3e6..6056ecbe8e4f 100644
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -808,7 +808,7 @@ static int ntfs_getxattr(const struct xattr_handler *handler, struct dentry *de,
  			err = sizeof(u32);
  			*(u32 *)buffer = le32_to_cpu(ni->std_fa);
  			if (!strcmp(name, SYSTEM_NTFS_ATTRIB_BE))
-				*(u32 *)buffer = cpu_to_be32(*(u32 *)buffer);
+				*(__be32 *)buffer = cpu_to_be32(*(u32 *)buffer);
  		}
  		goto out;
  	}
@@ -898,7 +898,7 @@ static noinline int ntfs_setxattr(const struct xattr_handler *handler,
  		if (size != sizeof(u32))
  			goto out;
  		if (!strcmp(name, SYSTEM_NTFS_ATTRIB_BE))
-			new_fa = cpu_to_le32(be32_to_cpu(*(u32 *)value));
+			new_fa = cpu_to_le32(be32_to_cpu(*(__be32 *)value));
  		else
  			new_fa = cpu_to_le32(*(u32 *)value);

Thank you for your work, applied!




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