Commits
Jeff Layton committed 56edc86b5a7
nfsd: fix compiler warning about ambiguous types in nfsd_cache_csum
kbuild test robot says:
tree: git://linux-nfs.org/~bfields/linux.git for-3.9
head: deb4534f4f3be7aea7d9d24c3b0d58f370cbf9ef
commit: 01a7decf75930925322c5efc87af0b5e58eb8650 [32/44] nfsd: keep a checksum of the first 256 bytes of request
config: i386-randconfig-x088 (attached as .config)
All warnings:
fs/nfsd/nfscache.c: In function 'nfsd_cache_csum':
>> fs/nfsd/nfscache.c:266:9: warning: comparison of distinct pointer types lacks a cast [enabled by default]
vim +266 fs/nfsd/nfscache.c
250 __wsum csum;
251 struct xdr_buf *buf = &rqstp->rq_arg;
252 const unsigned char *p = buf->head[0].iov_base;
253 size_t csum_len = min_t(size_t, buf->head[0].iov_len + buf->page_len,
254 RC_CSUMLEN);
255 size_t len = min(buf->head[0].iov_len, csum_len);
256
257 /* rq_arg.head first */
258 csum = csum_partial(p, len, 0);
259 csum_len -= len;
260
261 /* Continue into page array */
262 idx = buf->page_base / PAGE_SIZE;
263 base = buf->page_base & ~PAGE_MASK;
264 while (csum_len) {
265 p = page_address(buf->pages[idx]) + base;
> 266 len = min(PAGE_SIZE - base, csum_len);
267 csum = csum_partial(p, len, csum);
268 csum_len -= len;
269 base = 0;
270 ++idx;
271 }
272 return csum;
273 }
274
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>