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SubjectRe: [PATCH] include/linux/pktcdvd.h: add mempool.h dependency
On Wed, Apr 22 2009, Ingo Molnar wrote:
>
> * Ingo Molnar <mingo@elte.hu> wrote:
>
> > A last-minute build error slipped through:
> >
> > In file included from fs/compat_ioctl.c:105:
> > include/linux/pktcdvd.h:285: error: expected specifier-qualifier-list before ???mempool_t???
>
> Caused by:
>
> 1ba0c7d: fs/compat_ioctl: fix build when !BLOCK
>
> fixed by the patch below. The build error itself triggers with
> !BLOCK

This fix is already queued up in the block tree, it just didn't make
-rc3.

>
> Ingo
>
> ------------------>
> From f8b664b0e6ad3369a998379e7f87297082d04bef Mon Sep 17 00:00:00 2001
> From: Ingo Molnar <mingo@elte.hu>
> Date: Wed, 22 Apr 2009 08:29:40 +0200
> Subject: [PATCH] include/linux/pktcdvd.h: add mempool.h dependency
> MIME-Version: 1.0
> Content-Type: text/plain; charset=utf-8
> Content-Transfer-Encoding: 8bit
>
> A change to the order of header files in fs/compat_ioctl.c
> unearthed a dormant header file dependency bug:
>
> In file included from fs/compat_ioctl.c:105:
> include/linux/pktcdvd.h:285: error: expected specifier-qualifier-list before ???mempool_t???
>
> pktcdvd.h relies on mempool_t but does not include mempool.h.
> This worked until now accidentally: due to other headers including
> mempool.h in compat_ioctl.c (and all other pktcdvd.h using sites).
> But once the header file broke this implicit dependency got
> uncovered and an uncleanliness turned into a build failure.
>
> Add mempool.h to pktcdvd.h.
>
> [ Impact: fix build on !CONFIG_BLOCK ]
>
> Signed-off-by: Ingo Molnar <mingo@elte.hu>
> ---
> include/linux/pktcdvd.h | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/pktcdvd.h b/include/linux/pktcdvd.h
> index 04b4d73..9cabc20 100644
> --- a/include/linux/pktcdvd.h
> +++ b/include/linux/pktcdvd.h
> @@ -112,6 +112,7 @@ struct pkt_ctrl_command {
> #include <linux/completion.h>
> #include <linux/cdrom.h>
> #include <linux/kobject.h>
> +#include <linux/mempool.h>
> #include <linux/sysfs.h>
>
> /* default bio write queue congestion marks */
> --
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--
Jens Axboe



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