vfs: workaround gcc <4.6 build error in link_path_walk()
Commitd6bb3e9075
("vfs: simplify and shrink stack frame of link_path_walk()") introduced build problems with GCC versions older than 4.6 due to the initialisation of a member of an anonymous union in struct qstr without enclosing braces. This hits GCC bug 10676 [1] (which was fixed in GCC 4.6 by [2]), and causes the following build error: fs/namei.c: In function 'link_path_walk': fs/namei.c:1778: error: unknown field 'hash_len' specified in initializer This is worked around by adding explicit braces. [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=10676 [2] https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=159206 Fixes:d6bb3e9075
(vfs: simplify and shrink stack frame of link_path_walk()) Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-fsdevel@vger.kernel.org Cc: linux-metag@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1775,7 +1775,7 @@ static int link_path_walk(const char *name, struct nameidata *nd)
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struct dentry *parent = nd->path.dentry;
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nd->flags &= ~LOOKUP_JUMPED;
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if (unlikely(parent->d_flags & DCACHE_OP_HASH)) {
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struct qstr this = { .hash_len = hash_len, .name = name };
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struct qstr this = { { .hash_len = hash_len }, .name = name };
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err = parent->d_op->d_hash(parent, &this);
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if (err < 0)
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break;
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