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Date:   Thu, 2 Apr 2020 10:29:10 +0800
From:   Yuehaibing <yuehaibing@...wei.com>
To:     "Theodore Y. Ts'o" <tytso@....edu>
CC:     <adilger.kernel@...ger.ca>, <linux-ext4@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] ext4: Fix build error while CONFIG_PRINTK is n

On 2020/4/2 5:28, Theodore Y. Ts'o wrote:
> On Wed, Apr 01, 2020 at 03:30:38PM +0800, YueHaibing wrote:
>> fs/ext4/balloc.c: In function ‘ext4_wait_block_bitmap’:
>> fs/ext4/balloc.c:519:3: error: implicit declaration of function ‘ext4_error_err’; did you mean ‘ext4_error’? [-Werror=implicit-function-declaration]
>>    ext4_error_err(sb, EIO, "Cannot read block bitmap - "
>>    ^~~~~~~~~~~~~~
>>
>> Add missing stub helper and fix ext4_abort.
>>
>> Reported-by: Hulk Robot <hulkci@...wei.com>
>> Fixes: 2ea2fc775321 ("ext4: save all error info in save_error_info() and drop ext4_set_errno()")
>> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> 
> Thanks; the patch isn't quite correct, though.  This is what I merged
> into my tree's version of the "save all error info..." commit.
> 
>      	       	       	      	    	      - Ted
> 

Ok, good to know this and thansk!

> diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
> index eacd2f9cc833..91eb4381cae5 100644
> --- a/fs/ext4/ext4.h
> +++ b/fs/ext4/ext4.h
> @@ -2848,6 +2848,11 @@ do {									\
>  	no_printk(fmt, ##__VA_ARGS__);					\
>  	__ext4_error_inode(inode, "", 0, block, 0, " ");		\
>  } while (0)
> +#define ext4_error_inode_err(inode, func, line, block, err, fmt, ...)	\
> +do {									\
> +	no_printk(fmt, ##__VA_ARGS__);					\
> +	__ext4_error_inode(inode, "", 0, block, err, " ");		\
> +} while (0)
>  #define ext4_error_file(file, func, line, block, fmt, ...)		\
>  do {									\
>  	no_printk(fmt, ##__VA_ARGS__);					\
> @@ -2858,10 +2863,15 @@ do {									\
>  	no_printk(fmt, ##__VA_ARGS__);					\
>  	__ext4_error(sb, "", 0, 0, 0, " ");				\
>  } while (0)
> -#define ext4_abort(sb, fmt, ...)					\
> +#define ext4_error_err(sb, err, fmt, ...)				\
> +do {									\
> +	no_printk(fmt, ##__VA_ARGS__);					\
> +	__ext4_error(sb, "", 0, err, 0, " ");				\
> +} while (0)
> +#define ext4_abort(sb, err, fmt, ...)					\
>  do {									\
>  	no_printk(fmt, ##__VA_ARGS__);					\
> -	__ext4_abort(sb, "", 0, " ");					\
> +	__ext4_abort(sb, "", 0, err, " ");				\
>  } while (0)
>  #define ext4_warning(sb, fmt, ...)					\
>  do {									\
> 
> .
> 

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