[PATCH 07/85] drivers: gpu: Mark functions as static and remove unused function in cirrus_ttm.c

[Rashika Kheria]

Mark functions cirrus_ttm_global_release(), cirrus_ttm_bo_is_cirrus_bo()
and cirrus_ttm_tt_create() as static in drm/cirrus/cirrus_ttm.c because
they are not used outside this file. Remove unused function
cirrus_bo_unpin() from drm/cirrus/cirrus_ttm.c.

This eliminates the following warnings in drm/cirrus/cirrus_ttm.c:
drivers/gpu/drm/cirrus/cirrus_ttm.c:84:1: warning: no previous prototype for 
?cirrus_ttm_global_release? [-Wmissing-prototypes]
drivers/gpu/drm/cirrus/cirrus_ttm.c:105:6: warning: no previous prototype for 
?cirrus_ttm_bo_is_cirrus_bo? [-Wmissing-prototypes]
drivers/gpu/drm/cirrus/cirrus_ttm.c:211:16: warning: no previous prototype for 
?cirrus_ttm_tt_create? [-Wmissing-prototypes]
drivers/gpu/drm/cirrus/cirrus_ttm.c:378:5: warning: no previous prototype for 
?cirrus_bo_unpin? [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria at gmail.com>
Reviewed-by: Josh Triplett <josh at joshtriplett.org>
---
 drivers/gpu/drm/cirrus/cirrus_ttm.c |   26 +++-----------------------
 1 file changed, 3 insertions(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c 
b/drivers/gpu/drm/cirrus/cirrus_ttm.c
index 75becde..8b37c25 100644
--- a/drivers/gpu/drm/cirrus/cirrus_ttm.c
+++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c
@@ -80,7 +80,7 @@ static int cirrus_ttm_global_init(struct cirrus_device 
*cirrus)
        return 0;
 }

-void
+static void
 cirrus_ttm_global_release(struct cirrus_device *cirrus)
 {
        if (cirrus->ttm.mem_global_ref.release == NULL)
@@ -102,7 +102,7 @@ static void cirrus_bo_ttm_destroy(struct ttm_buffer_object 
*tbo)
        kfree(bo);
 }

-bool cirrus_ttm_bo_is_cirrus_bo(struct ttm_buffer_object *bo)
+static bool cirrus_ttm_bo_is_cirrus_bo(struct ttm_buffer_object *bo)
 {
        if (bo->destroy == &cirrus_bo_ttm_destroy)
                return true;
@@ -208,7 +208,7 @@ static struct ttm_backend_func cirrus_tt_backend_func = {
 };


-struct ttm_tt *cirrus_ttm_tt_create(struct ttm_bo_device *bdev,
+static struct ttm_tt *cirrus_ttm_tt_create(struct ttm_bo_device *bdev,
                                 unsigned long size, uint32_t page_flags,
                                 struct page *dummy_read_page)
 {
@@ -375,26 +375,6 @@ int cirrus_bo_pin(struct cirrus_bo *bo, u32 pl_flag, u64 
*gpu_addr)
        return 0;
 }

-int cirrus_bo_unpin(struct cirrus_bo *bo)
-{
-       int i, ret;
-       if (!bo->pin_count) {
-               DRM_ERROR("unpin bad %p\n", bo);
-               return 0;
-       }
-       bo->pin_count--;
-       if (bo->pin_count)
-               return 0;
-
-       for (i = 0; i < bo->placement.num_placement ; i++)
-               bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT;
-       ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false);
-       if (ret)
-               return ret;
-
-       return 0;
-}
-
 int cirrus_bo_push_sysram(struct cirrus_bo *bo)
 {
        int i, ret;
-- 
1.7.9.5