2019-12-30 19:42:15

by Wambui Karuga

Subject: [PATCH] drm/msm: use BUG_ON macro for debugging.

As the if statement only checks for the value of the offset_name
variable, it can be replaced by the more conscise BUG_ON macro for error
reporting.

Signed-off-by: Wambui Karuga <[email protected]>
---
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index c7441fb8313e..0fe7907f5a7d 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -315,10 +315,7 @@ OUT_PKT7(struct msm_ringbuffer *ring, uint8_t opcode, uint16_t cnt)
static inline bool adreno_reg_check(struct adreno_gpu *gpu,
enum adreno_regs offset_name)
{
- if (offset_name >= REG_ADRENO_REGISTER_MAX ||
- !gpu->reg_offsets[offset_name]) {
- BUG();
- }
+ BUG_ON(offset_name >= REG_ADRENO_REGISTER_MAX || !gpu->reg_offsets[offset_name]);

/*
* REG_SKIP is a special value that tell us that the register in
--
2.17.1

2019-12-31 15:23:05

by Sean Paul

Subject: Re: [PATCH] drm/msm: use BUG_ON macro for debugging.

On Mon, Dec 30, 2019 at 2:41 PM Wambui Karuga <[email protected]> wrote:
>
> As the if statement only checks for the value of the offset_name
> variable, it can be replaced by the more conscise BUG_ON macro for error
> reporting.
>
> Signed-off-by: Wambui Karuga <[email protected]>
> ---
> drivers/gpu/drm/msm/adreno/adreno_gpu.h | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
> index c7441fb8313e..0fe7907f5a7d 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
> +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
> @@ -315,10 +315,7 @@ OUT_PKT7(struct msm_ringbuffer *ring, uint8_t opcode, uint16_t cnt)
> static inline bool adreno_reg_check(struct adreno_gpu *gpu,
> enum adreno_regs offset_name)
> {
> - if (offset_name >= REG_ADRENO_REGISTER_MAX ||
> - !gpu->reg_offsets[offset_name]) {
> - BUG();
> - }
> + BUG_ON(offset_name >= REG_ADRENO_REGISTER_MAX || !gpu->reg_offsets[offset_name]);
>

Minor nit: This line is longer than 80 chars

Other than that,

Reviewed-by: Sean Paul <[email protected]>

> /*
> * REG_SKIP is a special value that tell us that the register in
> --
> 2.17.1
>