Re: [PATCH 1/1] fs: debugfs: fix build error at powerpc platform

[Greg KH]

On Fri, Sep 29, 2023 at 12:49:20PM -0400, Frank Li wrote:
>    ld: fs/debugfs/file.o: in function `debugfs_print_regs':
>    file.c:(.text+0x95a): undefined reference to `ioread64be'
> >> ld: file.c:(.text+0x9dd): undefined reference to `ioread64'
> 
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Closes: https://lore.kernel.org/oe-kbuild-all/202309291322.3pZiyosI-lkp@xxxxxxxxx/
> Signed-off-by: Frank Li <Frank.Li@xxxxxxx>

What commit id does this fix?

> ---
>  fs/debugfs/file.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
> index 5b8d4fd7c747..b406283806d9 100644
> --- a/fs/debugfs/file.c
> +++ b/fs/debugfs/file.c
> @@ -1179,7 +1179,7 @@ void debugfs_print_regs(struct seq_file *s, const struct debugfs_reg *regs,
>  			seq_printf(s, "%s = 0x%04x\n", regs->name,
>  				  b ? ioread16be(reg) : ioread16(reg));
>  			break;
> -#ifdef CONFIG_64BIT
> +#if defined(ioread64) && defined (ioread64be)

Are you sure this is equivalent?  What if these are functions?

thanks,

greg k-h