Re: [PATCH][next] accel/habanalabs: remove redundant assignment to pointer 'input'

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On 06/01/2024 14:42, Colin Ian King wrote:
From: Colin Ian King <colin.i.king@xxxxxxxxx>

The pointer input is assigned a value that is not read, it is
being re-assigned again later with the same value. Resolve this
by moving the declaration to input into the if block.

Cleans up clang scan build warning:
warning: Value stored to 'input' during its initialization is never
read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx>
---
  drivers/accel/habanalabs/goya/goya_coresight.c | 3 +--
  1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/accel/habanalabs/goya/goya_coresight.c b/drivers/accel/habanalabs/goya/goya_coresight.c
index 41cae5fd843b..3827ea4c02f7 100644
--- a/drivers/accel/habanalabs/goya/goya_coresight.c
+++ b/drivers/accel/habanalabs/goya/goya_coresight.c
@@ -576,7 +576,6 @@ static int goya_config_spmu(struct hl_device *hdev,
  		struct hl_debug_params *params)
  {
  	u64 base_reg;
-	struct hl_debug_params_spmu *input = params->input;
  	u64 *output;
  	u32 output_arr_len;
  	u32 events_num;
@@ -592,7 +591,7 @@ static int goya_config_spmu(struct hl_device *hdev,
  	base_reg = debug_spmu_regs[params->reg_idx] - CFG_BASE;
if (params->enable) {
-		input = params->input;
+		struct hl_debug_params_spmu *input = params->input;
if (!input)
  			return -EINVAL;
Thanks for the patch.
Reviewed-by: Oded Gabbay <ogabbay@xxxxxxxxxx>
Applied to -next.
Oded




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