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, 5 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/regops_gk20a.c b/drivers/gpu/nvgpu/gk20a/regops_gk20a.c
index 8b87b523..b0754070 100644
--- a/drivers/gpu/nvgpu/gk20a/regops_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/regops_gk20a.c
@@ -35,7 +35,7 @@ static int regop_bsearch_range_cmp(const void *pkey, const void *pelem)
         if (key < prange->base)
                 return -1;
         else if (prange->base <= key && key < (prange->base +
-                                               (prange->count * 4)))
+                                               (prange->count * 4U)))
                 return 0;
         return 1;
 }
@@ -379,7 +379,8 @@ int exec_regops_gk20a(struct dbg_session_gk20a *dbg_s,
                       struct nvgpu_dbg_gpu_reg_op *ops,
                       u64 num_ops)
 {
-        int err = 0, i;
+        int err = 0;
+        unsigned int i;
         struct channel_gk20a *ch = NULL;
         struct gk20a *g = dbg_s->g;
         /*struct gr_gk20a *gr = &g->gr;*/
@@ -799,7 +800,8 @@ static int gk20a_apply_smpc_war(struct dbg_session_gk20a *dbg_s)
          * it was already swapped out in/out once or not, etc.
          */
         struct nvgpu_dbg_gpu_reg_op ops[4];
-        int i;
+        unsigned int i;
+
         for (i = 0; i < ARRAY_SIZE(ops); i++) {
                 ops[i].op     = REGOP(WRITE_32);
                 ops[i].type   = REGOP(TYPE_GR_CTX);