net/checksum: Remove unused variable in net_checksum_add_iov
From clang-13:
../qemu/net/checksum.c:189:23: error: variable 'buf_off' set but not used \
[-Werror,-Wunused-but-set-variable]
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/net/checksum.c b/net/checksum.c
index 70f4eae..68245fd 100644
--- a/net/checksum.c
+++ b/net/checksum.c
@@ -186,12 +186,11 @@
net_checksum_add_iov(const struct iovec *iov, const unsigned int iov_cnt,
uint32_t iov_off, uint32_t size, uint32_t csum_offset)
{
- size_t iovec_off, buf_off;
+ size_t iovec_off;
unsigned int i;
uint32_t res = 0;
iovec_off = 0;
- buf_off = 0;
for (i = 0; i < iov_cnt && size; i++) {
if (iov_off < (iovec_off + iov[i].iov_len)) {
size_t len = MIN((iovec_off + iov[i].iov_len) - iov_off , size);
@@ -200,7 +199,6 @@
res += net_checksum_add_cont(len, chunk_buf, csum_offset);
csum_offset += len;
- buf_off += len;
iov_off += len;
size -= len;
}