Fix unused variable warning in xen's blkfront.c

With clang 15, the following -Werror warning is produced:

    sys/dev/xen/blkfront/blkfront.c:602:6: error: variable 'sbp' set but not used [-Werror,-Wunused-but-set-variable]
            int sbp;
                ^

The 'sbp' variable was used in the for loop later in the xb_dump()
function, but refactoring in e4808c4b2d got rid of it. Remove the
variable since it no longer serves any purpose.

MFC after:      3 days
This commit is contained in:
Dimitry Andric 2022-07-26 14:01:26 +02:00
parent 57c46916e1
commit e635220e1a

View file

@ -599,7 +599,6 @@ xbd_dump(void *arg, void *virtual, off_t offset, size_t length)
struct xbd_softc *sc = dp->d_drv1;
struct xbd_command *cm;
size_t chunk;
int sbp;
int rc = 0;
if (length == 0)
@ -614,7 +613,7 @@ xbd_dump(void *arg, void *virtual, off_t offset, size_t length)
mtx_lock(&sc->xbd_io_lock);
/* Split the 64KB block as needed */
for (sbp=0; length > 0; sbp++) {
while (length > 0) {
cm = xbd_dequeue_cm(sc, XBD_Q_FREE);
if (cm == NULL) {
mtx_unlock(&sc->xbd_io_lock);