When build Linux kernel with 'make C=2', encounter the following warnings:
./drivers/gpu/drm/nouveau/dispnv50/disp.c:134:34: warning: cast removes address space '__iomem' of expression
./drivers/gpu/drm/nouveau/dispnv50/disp.c:197:34: warning: cast removes address space '__iomem' of expression
The data type of dmac->_push.mem.object.map.ptr is 'void __iomem *', but
converted to 'u32 *' directly and cause above warnings, now
recover their data types to fix these warnings.
Signed-off-by: ruanjinjie <ruanjinjie@xxxxxxxxxx>
---
drivers/gpu/drm/nouveau/dispnv50/disp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 33c97d510999..aa94f8e284dd 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -131,7 +131,7 @@ nv50_dmac_kick(struct nvif_push *push)
{
struct nv50_dmac *dmac = container_of(push, typeof(*dmac), _push);
- dmac->cur = push->cur - (u32 *)dmac->_push.mem.object.map.ptr;
+ dmac->cur = push->cur - (u32 __iomem *)dmac->_push.mem.object.map.ptr;
if (dmac->put != dmac->cur) {
/* Push buffer fetches are not coherent with BAR1, we need to ensure
* writes have been flushed right through to VRAM before writing PUT.
@@ -194,7 +194,7 @@ nv50_dmac_wait(struct nvif_push *push, u32 size)
if (WARN_ON(size > dmac->max))
return -EINVAL;
- dmac->cur = push->cur - (u32 *)dmac->_push.mem.object.map.ptr;
+ dmac->cur = push->cur - (u32 __iomem *)dmac->_push.mem.object.map.ptr;
if (dmac->cur + size >= dmac->max) {
int ret = nv50_dmac_wind(dmac);
if (ret)
--
2.25.1
