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Date:   Mon, 22 Jul 2019 15:14:04 +0000
From:   "Liu, Shaoyun" <Shaoyun.Liu@....com>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        "Cox, Philip" <Philip.Cox@....com>,
        Oded Gabbay <oded.gabbay@...il.com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        "Koenig, Christian" <Christian.Koenig@....com>,
        "Zhou, David(ChunMing)" <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
CC:     "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/amdkfd/kfd_mqd_manager_v10: Fix missing break in
 switch statement

This one properly in purpose , The mqd init for CP andĀ  COMPUTE will 
have the sameĀ  routine .

Regard

sshaoyun.liu

On 2019-07-21 6:59 p.m., Gustavo A. R. Silva wrote:
> Add missing break statement in order to prevent the code from falling
> through to case KFD_MQD_TYPE_COMPUTE.
>
> This bug was found thanks to the ongoing efforts to enable
> -Wimplicit-fallthrough.
>
> Fixes: 14328aa58ce5 ("drm/amdkfd: Add navi10 support to amdkfd. (v3)")
> Cc: stable@...r.kernel.org
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> ---
>   drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c
> index 4f8a6ffc5775..1d8b13ad46f9 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c
> @@ -430,6 +430,7 @@ struct mqd_manager *mqd_manager_init_v10(enum KFD_MQD_TYPE type,
>   	switch (type) {
>   	case KFD_MQD_TYPE_CP:
>   		pr_debug("%s@%i\n", __func__, __LINE__);
> +		break;
>   	case KFD_MQD_TYPE_COMPUTE:
>   		pr_debug("%s@%i\n", __func__, __LINE__);
>   		mqd->allocate_mqd = allocate_mqd;

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