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, 7 insertions, 7 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
index 9906b77b..fcd5d664 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
@@ -789,10 +789,10 @@ static void gk20a_remove_mm_ce_support(struct mm_gk20a *mm)
         struct gk20a *g = gk20a_from_mm(mm);
         struct gk20a_platform *platform = gk20a_get_platform(g->dev);
 
-        if (mm->vidmem.ce_ctx_id != ~0)
+        if (mm->vidmem.ce_ctx_id != (u32)~0)
                 gk20a_ce_delete_context(g->dev, mm->vidmem.ce_ctx_id);
 
-        mm->vidmem.ce_ctx_id = ~0;
+        mm->vidmem.ce_ctx_id = (u32)~0;
 
         if (platform->has_ce)
                 gk20a_vm_remove_support_nofree(&mm->ce.vm);
@@ -836,7 +836,7 @@ static int gk20a_vidmem_clear_all(struct gk20a *g)
         u64 region2_base = 0;
         int err = 0;
 
-        if (mm->vidmem.ce_ctx_id == ~0)
+        if (mm->vidmem.ce_ctx_id == (u32)~0)
                 return -EINVAL;
 
         err = gk20a_ce_execute_ops(g->dev,
@@ -989,7 +989,7 @@ int gk20a_init_mm_setup_sw(struct gk20a *g)
 
         gk20a_init_pramin(mm);
 
-        mm->vidmem.ce_ctx_id = ~0;
+        mm->vidmem.ce_ctx_id = (u32)~0;
 
         err = gk20a_init_vidmem(mm);
         if (err)
@@ -1119,7 +1119,7 @@ int gk20a_init_mm_support(struct gk20a *g)
 void gk20a_init_mm_ce_context(struct gk20a *g)
 {
 #if defined(CONFIG_GK20A_VIDMEM)
-        if (g->mm.vidmem.size && (g->mm.vidmem.ce_ctx_id == ~0)) {
+        if (g->mm.vidmem.size && (g->mm.vidmem.ce_ctx_id == (u32)~0)) {
                 g->mm.vidmem.ce_ctx_id =
                         gk20a_ce_create_context_with_cb(g->dev,
                                 gk20a_fifo_get_fast_ce_runlist_id(g),
@@ -1128,7 +1128,7 @@ void gk20a_init_mm_ce_context(struct gk20a *g)
                                 -1,
                                 NULL);
 
-                if (g->mm.vidmem.ce_ctx_id == ~0)
+                if (g->mm.vidmem.ce_ctx_id == (u32)~0)
                         gk20a_err(g->dev,
                                 "Failed to allocate CE context for vidmem page clearing support");
         }
@@ -3021,7 +3021,7 @@ static int gk20a_gmmu_clear_vidmem_mem(struct gk20a *g, struct mem_desc *mem)
         struct page_alloc_chunk *chunk = NULL;
         int err = 0;
 
-        if (g->mm.vidmem.ce_ctx_id == ~0)
+        if (g->mm.vidmem.ce_ctx_id == (u32)~0)
                 return -EINVAL;
 
         alloc = get_vidmem_page_alloc(mem->sgt->sgl);