Re: [PATCH next] drivers/md/dm-zoned-metadata: User strscpy() to copy device name

[Mikulas Patocka]

Hi

I accepted the patch.

Mikulas


On Sat, 6 Jun 2026, david.laight.linux@xxxxxxxxx wrote:

> From: David Laight <david.laight.linux@xxxxxxxxx>
> 
> Signed-off-by: David Laight <david.laight.linux@xxxxxxxxx>
> ---
> This is one of a group of patches that remove potentially unbounded
> strcpy() calls.
> 
> They are mostly replaced by strscpy() or, when strlen() has just been
> called, with memcpy() (usually including the '\0').
> 
> Calls with copy string literals into arrays are left unchanged.
> They are safe and easily detected as such.
> 
> The changes were made by getting the compiler to detect the calls and
> then fixing the code by hand.
> 
> Note that all the changes are only compile tested.
> 
> Some Makefiles were changed to allow files to contain strcpy().
> As well as 'difficult to fix' files, this included 'show' functions
> as they really need to use sysfs_emit() or seq_printf().
> 
> All the patches are being sent individually to avoid very long cc lists.
> Apologies for the terse commit messages and likely unexpected tags.
> (There are about 100 patches in total.)
> 
>  drivers/md/dm-zoned-metadata.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
> index ec605acddd88..f4f81c79a080 100644
> --- a/drivers/md/dm-zoned-metadata.c
> +++ b/drivers/md/dm-zoned-metadata.c
> @@ -2871,7 +2871,7 @@ int dmz_ctr_metadata(struct dmz_dev *dev, int num_dev,
>  	if (!zmd)
>  		return -ENOMEM;
>  
> -	strcpy(zmd->devname, devname);
> +	strscpy(zmd->devname, devname);
>  	zmd->dev = dev;
>  	zmd->nr_devs = num_dev;
>  	zmd->mblk_rbtree = RB_ROOT;
> -- 
> 2.39.5
>