linux-kernel - Re: [PATCH] Staging : lustre: Struct file

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Date:	Mon, 3 Aug 2015 12:48:38 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Shraddha Barke <shraddha.6596@...il.com>
Cc:	Oleg Drokin <oleg.drokin@...el.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Julia Lawall <Julia.Lawall@...6.fr>,
	aybuke ozdemir <aybuke.147@...il.com>,
	Andreas Dilger <andreas.dilger@...el.com>,
	"John L. Hammond" <john.hammond@...el.com>,
	Frank Zago <fzago@...y.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	HPDD-discuss@...ts.01.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Staging : lustre: Struct file_operations should be const

On Mon, Aug 03, 2015 at 11:17:06AM +0530, Shraddha Barke wrote:
> Declare the file_operations structure ll_file_operations as const, as done
> elsewhere in the kernel, as there are no modifications to its fields.
> 
> Problem found using checkpatch:
> 
> WARNING: struct file_operations should normally be const
> 
> Signed-off-by: Shraddha Barke <shraddha.6596@...il.com>
> ---
You have not even build tested your patch before sending. :(
	
drivers/staging/lustre/lustre/llite/file.c:3119:30: error: conflicting type qualifiers for ‘ll_file_operations’
 const struct file_operations ll_file_operations = {
                              ^
In file included from drivers/staging/lustre/lustre/llite/file.c:48:0:
drivers/staging/lustre/lustre/llite/llite_internal.h:710:31: note: previous declaration of ‘ll_file_operations’ was here
 extern struct file_operations ll_file_operations;
                               ^
drivers/staging/lustre/lustre/llite/file.c:3132:30: error: conflicting type qualifiers for ‘ll_file_operations_flock’
 const struct file_operations ll_file_operations_flock = {
                              ^
In file included from drivers/staging/lustre/lustre/llite/file.c:48:0:
drivers/staging/lustre/lustre/llite/llite_internal.h:711:31: note: previous declaration of ‘ll_file_operations_flock’ was here
 extern struct file_operations ll_file_operations_flock;
                               ^
drivers/staging/lustre/lustre/llite/file.c:3148:30: error: conflicting type qualifiers for ‘ll_file_operations_noflock’
 const struct file_operations ll_file_operations_noflock = {
                              ^
In file included from drivers/staging/lustre/lustre/llite/file.c:48:0:
drivers/staging/lustre/lustre/llite/llite_internal.h:712:31: note: previous declaration of ‘ll_file_operations_noflock’ was here
 extern struct file_operations ll_file_operations_noflock;
                               ^
make[3]: *** [drivers/staging/lustre/lustre/llite/file.o] Error 1
make[2]: *** [drivers/staging/lustre/lustre/llite] Error 2
make[1]: *** [drivers/staging/lustre/lustre] Error 2
make: *** [_module_drivers/staging/lustre] Error 2

regards
sudip
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