Distributed Replicated Block Device (DRBD) development
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From: Lars Ellenberg <lars.ellenberg@linbit.com>
To: Fabio Estevam <festevam@gmail.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>, drbd-dev@lists.linbit.com
Subject: Re: [Drbd-dev] [DRBD-user] [PATCH] drbd: drbd_bitmap: Avoid name collision
Date: Tue, 10 Mar 2015 11:54:45 +0100	[thread overview]
Message-ID: <20150310105445.GC3961@soda.linbit> (raw)
In-Reply-To: <1425752066-25196-1-git-send-email-festevam@gmail.com>

On Sat, Mar 07, 2015 at 03:14:26PM -0300, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@freescale.com>
> 
> Building for ARM64 leads to the following build warnings:
> 
>   CC      drivers/block/drbd/drbd_bitmap.o
> drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE" redefined
>  #define BITS_PER_PAGE  (1UL << (PAGE_SHIFT + 3))


Apparently there are more than one consumer of "BITS_PER_PAGE".
The commit that moved the now conflicting definition to pid_namespace.h
itself already refered to a similar "redefined" warning.

Would it not make more sense to have one such definition next to PAGE_SIZE?
Or somewhere central, anyways?

> Fix the warnings by using BITS_PER_PAGE_DRBD and BITS_PER_PAGE_MASK_DRBD 
> definitions to avoid the name collision.

Other than that:
Ack.

	Lars Ellenberg

  reply	other threads:[~2015-03-10 10:54 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-07 18:14 [Drbd-dev] [PATCH] drbd: drbd_bitmap: Avoid name collision Fabio Estevam
2015-03-10 10:54 ` Lars Ellenberg [this message]
2015-03-10 16:06   ` [Drbd-dev] [DRBD-user] " Fabio Estevam

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