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authorDarrick J. Wong <djwong@kernel.org>2024-08-30 15:37:18 -0700
committerDarrick J. Wong <djwong@kernel.org>2024-09-01 08:58:20 -0700
commit64dfa18d6e322034c8a30b080f4c380a0b20bb7f (patch)
tree9539f7705d864a75d9da0da0985840f3793e28ef /fs/xfs/libxfs/xfs_fs.h
parent2c4162be6c10d3bc4884c211ae4787fc84c4fe3c (diff)
xfs: fix C++ compilation errors in xfs_fs.h
Several people reported C++ compilation errors due to things that C compilers allow but C++ compilers do not. Fix both of these problems, and hope there aren't more of these brown paper bags in 2 months when we finally get these fixes through the process into a released xfsprogs. NOTE: I am submitting this bugfix over the objections of a former maintainer, who insists that we should remove this function from the published userspace ABI instead of fixing the C++ compilation errors. No deprecation period, no discussion, just a hard drop of an already provided and correct C function, which would be in contravention of Linus' rules. IOWs, removing ABI that have already shipped in a released kernel requires a careful deprecation period, so I will let that maintainer run that process. Reported-by: kernel@mattwhitlock.name Reported-by: sam@gentoo.org Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219203 Fixes: 233f4e12bbb2c ("xfs: add parent pointer ioctls") Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_fs.h')
-rw-r--r--fs/xfs/libxfs/xfs_fs.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
index c85c8077fac3..860284064c5a 100644
--- a/fs/xfs/libxfs/xfs_fs.h
+++ b/fs/xfs/libxfs/xfs_fs.h
@@ -8,6 +8,7 @@
/*
* SGI's XFS filesystem's major stuff (constants, structures)
+ * NOTE: This file must be compile-able with C++ compilers.
*/
/*
@@ -930,13 +931,13 @@ static inline struct xfs_getparents_rec *
xfs_getparents_next_rec(struct xfs_getparents *gp,
struct xfs_getparents_rec *gpr)
{
- void *next = ((void *)gpr + gpr->gpr_reclen);
+ void *next = ((char *)gpr + gpr->gpr_reclen);
void *end = (void *)(uintptr_t)(gp->gp_buffer + gp->gp_bufsize);
if (next >= end)
return NULL;
- return next;
+ return (struct xfs_getparents_rec *)next;
}
/* Iterate through this file handle's directory parent pointers. */