gpu: nvgpu: Fix signed comparison bugs

Fix small problems related to signed versus unsigned comparisons
throughout the driver. Bump up the warning level to prevent such
problems from occuring in future.

Change-Id: I8ff5efb419f664e8a2aedadd6515ae4d18502ae0
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1252068
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
index 56812fa6..cff0774d 100644
--- a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
@@ -548,11 +548,11 @@ static void gr_gm20b_load_tpc_mask(struct gk20a *g)
 
         fuse_tpc_mask = g->ops.gr.get_gpc_tpc_mask(g, 0);
         if (g->tpc_fs_mask_user && g->tpc_fs_mask_user != fuse_tpc_mask &&
-                fuse_tpc_mask == (0x1 << g->gr.max_tpc_count) - 1) {
+                fuse_tpc_mask == (0x1U << g->gr.max_tpc_count) - 1U) {
                 u32 val = g->tpc_fs_mask_user;
-                val &= (0x1 << g->gr.max_tpc_count) - 1;
+                val &= (0x1U << g->gr.max_tpc_count) - 1U;
                 /* skip tpc to disable the other tpc cause channel timeout */
-                val = (0x1 << hweight32(val)) - 1;
+                val = (0x1U << hweight32(val)) - 1U;
                 gk20a_writel(g, gr_fe_tpc_fs_r(), val);
         } else {
                 gk20a_writel(g, gr_fe_tpc_fs_r(), pes_tpc_mask);