diff options
| author |   Aditya Pakki <pakki001@umn.edu> | 2019-12-17 14:53:56 -0600 |
|---|---|---|
| committer |   Juergen Gross <jgross@suse.com> | 2019-12-20 13:54:56 +0100 |
| commit | d6bd6cf9feb81737f9f64d2c1acf98fdaacebad1 (patch) | |
| tree | 1185394ab63e666b9a4b86556ed22caff49e910a /drivers/xen | |
| parent | xen-blkback: support dynamic unbind/bind (diff) | |
| download | linux-dev-d6bd6cf9feb81737f9f64d2c1acf98fdaacebad1.tar.xz linux-dev-d6bd6cf9feb81737f9f64d2c1acf98fdaacebad1.zip | |
xen/grant-table: remove multiple BUG_ON on gnttab_interface
gnttab_request_version() always sets the gnttab_interface variable
and the assertions to check for empty gnttab_interface is unnecessary.
The patch eliminates multiple such assertions.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/grant-table.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 49b381e104ef..7b36b51cdb9f 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -664,7 +664,6 @@ static int grow_gnttab_list(unsigned int more_frames) unsigned int nr_glist_frames, new_nr_glist_frames; unsigned int grefs_per_frame; - BUG_ON(gnttab_interface == NULL); grefs_per_frame = gnttab_interface->grefs_per_grant_frame; new_nr_grant_frames = nr_grant_frames + more_frames; @@ -1160,7 +1159,6 @@ EXPORT_SYMBOL_GPL(gnttab_unmap_refs_sync); static unsigned int nr_status_frames(unsigned int nr_grant_frames) { - BUG_ON(gnttab_interface == NULL); return gnttab_frames(nr_grant_frames, SPP); } @@ -1388,7 +1386,6 @@ static int gnttab_expand(unsigned int req_entries) int rc; unsigned int cur, extra; - BUG_ON(gnttab_interface == NULL); cur = nr_grant_frames; extra = ((req_entries + gnttab_interface->grefs_per_grant_frame - 1) / gnttab_interface->grefs_per_grant_frame); @@ -1423,7 +1420,6 @@ int gnttab_init(void) /* Determine the maximum number of frames required for the * grant reference free list on the current hypervisor. */ - BUG_ON(gnttab_interface == NULL); max_nr_glist_frames = (max_nr_grant_frames * gnttab_interface->grefs_per_grant_frame / RPP); |