Re: [PATCH] staging: android: make file_operations struct const

From: Greg KH
Date: Wed May 05 2021 - 12:21:41 EST


On Wed, May 05, 2021 at 06:10:15PM +0200, Alexander Vorwerk wrote:
> Fix the following type of checkpatch warning:
> "WARNING: struct file_operations should normally be const"
>
> Signed-off-by: Alexander Vorwerk <alec@xxxxxxxxxxx>
> ---
> drivers/staging/android/ashmem.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
> index 8ee4320a5dc6..8ff2794b08e3 100644
> --- a/drivers/staging/android/ashmem.c
> +++ b/drivers/staging/android/ashmem.c
> @@ -377,7 +377,7 @@ ashmem_vmfile_get_unmapped_area(struct file *file, unsigned long addr,
>
> static int ashmem_mmap(struct file *file, struct vm_area_struct *vma)
> {
> - static struct file_operations vmfile_fops;
> + static const struct file_operations vmfile_fops;
> struct ashmem_area *asma = file->private_data;
> int ret = 0;
>
> --
> 2.17.1
>
>

Always test build your patches before sending them out. Any specific
reason why you didn't do that here?

thanks,

greg k-h