linux-ext4 - Re: [PATCH] libext2fs: fix build errors on bigendian hosts

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Date:	Tue, 8 Apr 2014 19:36:25 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	Eryu Guan <guaneryu@...il.com>
Cc:	linux-ext4@...r.kernel.org, Theodore Ts'o <tytso@....edu>
Subject: Re: [PATCH] libext2fs: fix build errors on bigendian hosts

On Thu, Mar 27, 2014 at 06:17:24PM +0800, Eryu Guan wrote:
> Fix the following build errors on bigendian hosts.
> 
> - ctx is a pointer, use '->' not '.'
> - add missing argument to ext2fs_dirent_swab_in2
> 
> make[2]: Entering directory `/root/e2fsprogs/lib/ext2fs'
>         CC inline_data.c
> inline_data.c: In function ‘ext2fs_inline_data_dir_iterate’:
> inline_data.c:221:5: error: request for member ‘errcode’ in something not a structure or union
>   ctx.errcode = ext2fs_dirent_swab_in2(fs, ctx->buf, ctx->buflen, 0);
>      ^
> inline_data.c:222:9: error: request for member ‘errcode’ in something not a structure or union
>   if (ctx.errcode) {
>          ^
> inline_data.c: In function ‘ext2fs_inline_data_dir_expand’:
> inline_data.c:364:2: error: too few arguments to function ‘ext2fs_dirent_swab_in2’
>   retval = ext2fs_dirent_swab_in2(fs, buf, size);
>   ^
> In file included from inline_data.c:19:0:
> ext2fs.h:1569:18: note: declared here
>  extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
>                   ^
> make[2]: *** [inline_data.o] Error 1
> 
> Cc: Theodore Ts'o <tytso@....edu>
> Signed-off-by: Eryu Guan <guaneryu@...il.com>

Sorry for the late reply, and thanks for fixing this.

Reviewed-by: Zheng Liu <wenqing.lz@...bao.com>

                                                - Zheng

> ---
>  lib/ext2fs/inline_data.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/lib/ext2fs/inline_data.c b/lib/ext2fs/inline_data.c
> index 7be0f96..7a81da0 100644
> --- a/lib/ext2fs/inline_data.c
> +++ b/lib/ext2fs/inline_data.c
> @@ -218,8 +218,8 @@ int ext2fs_inline_data_dir_iterate(ext2_filsys fs, ext2_ino_t ino,
>  	ctx->buf = data.ea_data;
>  	ctx->buflen = data.ea_size;
>  #ifdef WORDS_BIGENDIAN
> -	ctx.errcode = ext2fs_dirent_swab_in2(fs, ctx->buf, ctx->buflen, 0);
> -	if (ctx.errcode) {
> +	ctx->errcode = ext2fs_dirent_swab_in2(fs, ctx->buf, ctx->buflen, 0);
> +	if (ctx->errcode) {
>  		ret |= BLOCK_ABORT;
>  		goto out;
>  	}
> @@ -361,7 +361,7 @@ ext2fs_inline_data_dir_expand(ext2_filsys fs, ext2_ino_t ino,
>  		return retval;
>  
>  #ifdef WORDS_BIGENDIAN
> -	retval = ext2fs_dirent_swab_in2(fs, buf, size);
> +	retval = ext2fs_dirent_swab_in2(fs, buf, size, 0);
>  	if (retval)
>  		goto errout;
>  #endif
> -- 
> 1.9.0
> 
> --
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