[PATCH] drm/amdkfd: Replace one-element array with flexible-array member
Christian König
christian.koenig at amd.com
Fri Feb 18 07:47:18 UTC 2022
Felix need to comment as well, but I don't think that this will work
that easily.
By changing the entry from 1 to 0 your are also changing the size of the
structure.
Regards,
Christian.
Am 18.02.22 um 04:09 schrieb cgel.zte at gmail.com:
> From: Changcheng Deng <deng.changcheng at 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 at zte.com.cn>
> Signed-off-by: Changcheng Deng <deng.changcheng at zte.com.cn>
> ---
> drivers/gpu/drm/amd/amdkfd/kfd_crat.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.h b/drivers/gpu/drm/amd/amdkfd/kfd_crat.h
> index 482ba84a728d..d7c38fbc533e 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.h
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.h
> @@ -310,7 +310,7 @@ struct cdit_header {
> uint32_t creator_revision;
> uint32_t total_entries;
> uint16_t num_domains;
> - uint8_t entry[1];
> + uint8_t entry[];
> };
>
> #pragma pack()
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