linux-kernel - Re: [PATCH] affs: Remove unused struct members in affs_root

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Message-Id: <761C500D-3075-4958-9011-DEE38B235A39@toblux.com>
Date: Tue, 27 Aug 2024 14:51:35 +0200
From: Thorsten Blum <thorsten.blum@...lux.com>
To: Kees Cook <kees@...nel.org>
Cc: dsterba@...e.com,
 "Gustavo A. R. Silva" <gustavoars@...nel.org>,
 linux-fsdevel@...r.kernel.org,
 LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] affs: Remove unused struct members in affs_root_head

On 26. Aug 2024, at 22:48, Thorsten Blum <thorsten.blum@...lux.com> wrote:
> On 26. Aug 2024, at 22:08, Kees Cook <kees@...nel.org> wrote:
>> On Mon, Aug 26, 2024 at 04:27:36PM +0200, Thorsten Blum wrote:
>>> Only ptype is actually used. Remove the other struct members.
>>> 
>>> Signed-off-by: Thorsten Blum <thorsten.blum@...lux.com>
>>> ---
>>> fs/affs/amigaffs.h | 6 ------
>>> 1 file changed, 6 deletions(-)
>>> 
>>> diff --git a/fs/affs/amigaffs.h b/fs/affs/amigaffs.h
>>> index 1b973a669d23..9b40ae618852 100644
>>> --- a/fs/affs/amigaffs.h
>>> +++ b/fs/affs/amigaffs.h
>>> @@ -49,12 +49,6 @@ struct affs_short_date {
>>> 
>>> struct affs_root_head {
>>> __be32 ptype;
>>> - __be32 spare1;
>>> - __be32 spare2;
>>> - __be32 hash_size;
>>> - __be32 spare3;
>>> - __be32 checksum;
>>> - __be32 hashtable[1];
>>> };
>> 
>> This is removing documentation, in a way. Since I suspect you were
>> looking at this due to hashtable, maybe just change that to [] and note
>> that it (and the other fields) aren't used, but they're kept around to
>> help document the format.
> 
> Yes, I was looking at hashtable. I'll submit a v2.

I submitted a new patch instead of a v2.

Link: https://lore.kernel.org/linux-kernel/20240827124839.81288-2-thorsten.blum@toblux.com/