linux-ext4 - Re: [PATCH 16/21 v5] e2fsck: add problem descriptions and check inline data feature

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Message-ID: <20121014132210.GB6207@thunk.org>
Date:	Sun, 14 Oct 2012 09:22:10 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Zheng Liu <gnehzuil.liu@...il.com>
Cc:	linux-ext4@...r.kernel.org, Zheng Liu <wenqing.lz@...bao.com>
Subject: Re: [PATCH 16/21 v5] e2fsck: add problem descriptions and check
 inline data feature

Hi Zheng,

I was trying to apply these patches to the e2fsprogs pu branch, and as
a matter of course, I ran checkpatch on the patch series.  The reason
why it's useful is because it finds stuff like this:

WARNING: trailing semicolon indicates no statements, indent implies otherwise
#156: FILE: lib/ext2fs/inline_data.c:567:
+     if (retval);
+     	 return pass;

ERROR: trailing statements should be on next line
#156: FILE: lib/ext2fs/inline_data.c:567:
+     if (retval);

> +int ext2fs_inline_data_header_check(ext2_filsys fs, ext2_ino_t ino)
> +{
> +	struct ext2_inode_large *inode;
> +	struct inline_data data;
> +	errcode_t retval = 0;
> +	int pass = 0;
> +
> +	retval = ext2fs_get_mem(EXT2_INODE_SIZE(fs->super), &inode);
> +	if (retval);
> +		return pass;

This means the rest of ext2fs_inline_data_header_check() isn't getting
executed, since the "return pass;" statement would get executed
unconditionally.  I didn't try it, but I suspect "make gcc-wall"
probably would have turned up this typo as well.

I'll fix this in my tree on the pu branch; I'm still looking over the
rest of the patches, but I thought it would be good to point this out
first.

Cheers,

					- Ted
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