Re: [PATCH] btrfs: fix size_t format string

[David Sterba]

On Tue, Jul 17, 2018 at 03:52:27PM +0200, Arnd Bergmann wrote:
> The newly added check_block_group_item() function causes a build warning
> on 32-bit architectures:
> 
> fs/btrfs/tree-checker.c: In function 'check_block_group_item':
> fs/btrfs/tree-checker.c:404:41: error: format '%lu' expects argument of type 'long unsigned int', but argument 6 has type 'unsigned int' [-Werror=format=]
> 
> The type of a sizeof() expression is size_t, which is correctly printed
> using the %zu format string.
> 
> Fixes: 9dc16aad5660 ("btrfs: tree-checker: Verify block_group_item")

Folded to the commit, thanks.