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Message-ID: <b8e02569-1bd3-4a04-857e-e7209b493d97@kernel.org>
Date: Tue, 9 Jan 2024 16:40:41 +0200
From: Oded Gabbay <ogabbay@...nel.org>
To: Colin Ian King <colin.i.king@...il.com>, Ofir Bitton <obitton@...ana.ai>,
Benjamin Dotan <bdotan@...ana.ai>, dri-devel@...ts.freedesktop.org
Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] accel/habanalabs: remove redundant assignment to
pointer 'input'
On 06/01/2024 14:42, Colin Ian King wrote:
> From: Colin Ian King <colin.i.king@...el.com>
>
> 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@...el.com>
> ---
> 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@...nel.org>
Applied to -next.
Oded
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