2024-02-15 22:43:15

by Colin Ian King

[permalink] [raw]
Subject: [PATCH][next] gpu: host1x: remove redundant assignment to variable space

The variable space is being initialized with a value that is never read,
it is being re-assigned later on. The initialization is redundant and
can be removed. Also merge two declaration lines together.

Cleans up clang scan build warning:
drivers/gpu/host1x/cdma.c:628:15: warning: Value stored to 'space'
during its initialization is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <[email protected]>
---
drivers/gpu/host1x/cdma.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/host1x/cdma.c b/drivers/gpu/host1x/cdma.c
index d1336e438f4f..407ed9b9cf64 100644
--- a/drivers/gpu/host1x/cdma.c
+++ b/drivers/gpu/host1x/cdma.c
@@ -625,8 +625,7 @@ void host1x_cdma_push_wide(struct host1x_cdma *cdma, u32 op1, u32 op2,
struct host1x_channel *channel = cdma_to_channel(cdma);
struct host1x *host1x = cdma_to_host1x(cdma);
struct push_buffer *pb = &cdma->push_buffer;
- unsigned int space = cdma->slots_free;
- unsigned int needed = 2, extra = 0;
+ unsigned int space, needed = 2, extra = 0;

if (host1x_debug_trace_cmdbuf)
trace_host1x_cdma_push_wide(dev_name(channel->dev), op1, op2,
--
2.39.2



2024-02-16 10:52:40

by Thierry Reding

[permalink] [raw]
Subject: Re: [PATCH][next] gpu: host1x: remove redundant assignment to variable space

On Thu Feb 15, 2024 at 11:43 PM CET, Colin Ian King wrote:
> The variable space is being initialized with a value that is never read,
> it is being re-assigned later on. The initialization is redundant and
> can be removed. Also merge two declaration lines together.
>
> Cleans up clang scan build warning:
> drivers/gpu/host1x/cdma.c:628:15: warning: Value stored to 'space'
> during its initialization is never read [deadcode.DeadStores]
>
> Signed-off-by: Colin Ian King <[email protected]>
> ---
> drivers/gpu/host1x/cdma.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)

Applied to drm-misc-next, thanks.

Thierry


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