gpu: nvgpu: Use asid only under CONFIG_SYNC in channel_sync_gk20a.c

This variable is only ever used under the CONFIG_SYNC config so
make sure that we only define/assign to it when CONFIG_SYNC is
enabled.

JIRA NVGPU-525

Change-Id: I27160adbd6a46f58e21f24ab19d37966ded5e7de
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1673812
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
index c6b55bf8..e896eb88 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
@@ -893,9 +893,11 @@ static void gk20a_channel_semaphore_destroy(struct gk20a_channel_sync *s)
 static struct gk20a_channel_sync *
 gk20a_channel_semaphore_create(struct channel_gk20a *c, bool user_managed)
 {
-        int asid = -1;
         struct gk20a_channel_semaphore *sema;
         char pool_name[20];
+#ifdef CONFIG_SYNC
+        int asid = -1;
+#endif
 
         if (WARN_ON(!c->vm))
                 return NULL;
@@ -905,13 +907,13 @@ gk20a_channel_semaphore_create(struct channel_gk20a *c, bool user_managed)
                 return NULL;
         sema->c = c;
 
-        if (c->vm->as_share)
-                asid = c->vm->as_share->id;
-
         sprintf(pool_name, "semaphore_pool-%d", c->chid);
         sema->pool = c->vm->sema_pool;
 
 #ifdef CONFIG_SYNC
+        if (c->vm->as_share)
+                asid = c->vm->as_share->id;
+
         sema->timeline = gk20a_sync_timeline_create(
                         "gk20a_ch%d_as%d", c->chid, asid);
         if (!sema->timeline) {