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SubjectRe: [PATCH] drm/amd/pm: Use kmemdup instead of kmalloc and memcpy
On Tue, Nov 10, 2020 at 11:57 AM Tian Tao <tiantao6@hisilicon.com> wrote:
>
> Fixes coccicheck warning:
> drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c:255:
> 36-43: WARNING opportunity for kmemdup
>
> Signed-off-by: Tian Tao <tiantao6@hisilicon.com>

Applied. Thanks!

Alex

> ---
> drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c
> index 740e2fc..1e79baa 100644
> --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c
> +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c
> @@ -252,12 +252,11 @@ static int init_powerplay_table_information(
> phm_copy_clock_limits_array(hwmgr, &pptable_information->power_saving_clock_max, powerplay_table->PowerSavingClockMax, ATOM_VEGA12_PPCLOCK_COUNT);
> phm_copy_clock_limits_array(hwmgr, &pptable_information->power_saving_clock_min, powerplay_table->PowerSavingClockMin, ATOM_VEGA12_PPCLOCK_COUNT);
>
> - pptable_information->smc_pptable = kmalloc(sizeof(PPTable_t), GFP_KERNEL);
> + pptable_information->smc_pptable = kmemdup(&(powerplay_table->smcPPTable),
> + sizeof(PPTable_t), GFP_KERNEL);
> if (pptable_information->smc_pptable == NULL)
> return -ENOMEM;
>
> - memcpy(pptable_information->smc_pptable, &(powerplay_table->smcPPTable), sizeof(PPTable_t));
> -
> result = append_vbios_pptable(hwmgr, (pptable_information->smc_pptable));
>
> return result;
> --
> 2.7.4
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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