From: Felix Kuehling <felix.kuehling@amd.com>
To: cgel.zte@gmail.com
Cc: airlied@linux.ie, Zeal Robot <zealci@zte.com.cn>,
Xinhui.Pan@amd.com, linux-kernel@vger.kernel.org,
amd-gfx@lists.freedesktop.org,
Changcheng Deng <deng.changcheng@zte.com.cn>,
dri-devel@lists.freedesktop.org, alexander.deucher@amd.com,
christian.koenig@amd.com
Subject: Re: [PATCH] drm/amdkfd: Replace zero-length array with flexible-array member
Date: Tue, 15 Feb 2022 19:01:16 -0500 [thread overview]
Message-ID: <35be6c0b-e6a8-d0f1-1870-6a77a18556c7@amd.com> (raw)
In-Reply-To: <20220215091142.1775600-1-deng.changcheng@zte.com.cn>
On 2022-02-15 04:11, cgel.zte@gmail.com wrote:
> From: Changcheng Deng <deng.changcheng@zte.com.cn>
>
> There is a regular need in the kernel to provide a way to declare having
> a dynamically sized set of trailing elements in a structure. Kernel code
> should always use "flexible array members" for these cases. The older
> style of one-element or zero-length arrays should no longer be used.
> Reference:
> https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays
>
> Reported-by: Zeal Robot <zealci@zte.com.cn>
> Signed-off-by: Changcheng Deng <deng.changcheng@zte.com.cn>
Makes sense. I'm applying this patch to amd-staging-drm-next.
I also found a similar issue in include/uapi/linux/kfd_ioctl.h. I'll
send another patch to fix that as well.
Regards,
Felix
> ---
> drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> index e54a52785690..7d39191d13f6 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> @@ -1084,7 +1084,7 @@ struct kfd_criu_svm_range_priv_data {
> uint64_t start_addr;
> uint64_t size;
> /* Variable length array of attributes */
> - struct kfd_ioctl_svm_attribute attrs[0];
> + struct kfd_ioctl_svm_attribute attrs[];
> };
>
> struct kfd_criu_queue_priv_data {
prev parent reply other threads:[~2022-02-16 0:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-15 9:11 [PATCH] drm/amdkfd: Replace zero-length array with flexible-array member cgel.zte
2022-02-15 9:21 ` Christian König
2022-02-16 0:01 ` Felix Kuehling [this message]
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