[PATCH U-BOOT v3 03/30] fs: btrfs: Crossport btrfs_read_dev_super() from btrfs-progs

Tom Rini trini at konsulko.com
Tue Sep 8 00:26:04 CEST 2020


On Wed, Jun 24, 2020 at 06:02:49PM +0200, Marek Behún wrote:

> From: Qu Wenruo <wqu at suse.com>
> 
> This patch uses generic code from btrfs-progs to read one super block
> from block device.
[snip]
> +/* Provide a compatibility layer to make code syncing easier */
> +
> +/* A simple wraper to for error() used in btrfs-progs */
> +__attribute__((format (__printf__, 1, 2)))
> +static inline void error(const char *fmt, ...)
> +{
> +	printf("BTRFS: ");
> +	printf(fmt, __builtin_va_arg_pack());
> +	printf("\n");
> +}

Note that this does not work with LLVM (no __builtin_va_arg_pack()).
I'm reworking this call pr_err(...) under the hood instead, with "BTRFS: " 
included in the message.

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 659 bytes
Desc: not available
URL: <https://lists.denx.de/pipermail/u-boot/attachments/20200907/469e41d6/attachment.sig>


More information about the U-Boot mailing list