static int cifs_ci_compare(struct dentry *dentry, struct qstr *a,
struct qstr *b)
{
struct nls_table *codepage = CIFS_SB(dentry->d_inode->i_sb)->local_nls;
if ((a->len == b->len) &&
(nls_strnicmp(codepage, a->name, b->name, a->len) == 0)) {
/*
* To preserve case, don't let an existing negative dentry's
* case take precedence. If a is not a negative dentry, this
* should have no side effects
*/
memcpy(a->name, b->name, a->len);
return 0;
}
return 1;
}
produces
fs/cifs/dir.c: In function 'cifs_ci_compare':
fs/cifs/dir.c:596: warning: passing argument 1 of '__constant_memcpy' discards
qualifiers from pointer target type
fs/cifs/dir.c:596: warning: passing argument 1 of '__memcpy' discards
qualifiers from pointer target type
I suspect that bad things are happening in there.
It's strange for a "comparison" function to go and alter one of the things
which it's comparing, too.
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