linux-kernel - Re: linux-next: build failure after merge of the tip tree

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Date:   Mon, 3 Jul 2017 13:01:50 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Gustavo Padovan <gustavo@...ovan.org>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jeffy Chen <jeffy.chen@...k-chips.com>
Subject: Re: linux-next: build failure after merge of the tip tree

Hi all,

With the merge window opening, just a reminder that this semantic
conflict still exists.

On Wed, 28 Jun 2017 13:43:10 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
> 
> net/bluetooth/hidp/core.c:1241:39: error: unknown type name 'wait_queue_t'
>  static int hidp_session_wake_function(wait_queue_t *wait,
>                                        ^
> In file included from include/linux/mmzone.h:9:0,
>                  from include/linux/gfp.h:5,
>                  from include/linux/kmod.h:22,
>                  from include/linux/module.h:13,
>                  from net/bluetooth/hidp/core.c:25:
> net/bluetooth/hidp/core.c: In function 'hidp_session_thread':
> net/bluetooth/hidp/core.c:1259:30: error: 'hidp_session_wake_function' undeclared (first use in this function)
>   DEFINE_WAIT_FUNC(ctrl_wait, hidp_session_wake_function);
>                               ^
> include/linux/wait.h:954:12: note: in definition of macro 'DEFINE_WAIT_FUNC'
>    .func  = function,     \
>             ^
> net/bluetooth/hidp/core.c:1259:30: note: each undeclared identifier is reported only once for each function it appears in
>   DEFINE_WAIT_FUNC(ctrl_wait, hidp_session_wake_function);
>                               ^
> include/linux/wait.h:954:12: note: in definition of macro 'DEFINE_WAIT_FUNC'
>    .func  = function,     \
>             ^
> 
> Caused by commit
> 
>   ac6424b981bc ("sched/wait: Rename wait_queue_t => wait_queue_entry_t")
> 
> interacting with commit
> 
>   5da8e47d849d ("Bluetooth: hidp: fix possible might sleep error in hidp_session_thread")
> 
> from the bluetooth tree.  I should have fixed this up in the merge, sorry.
> I added the following merge fix for today.
> 
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Wed, 28 Jun 2017 13:36:04 +1000
> Subject: [PATCH] Bluetooth: hidp: fix for "sched/wait: Rename wait_queue_t =>
>  wait_queue_entry_t"
> 
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> ---
>  net/bluetooth/hidp/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
> index 472b3907b1b0..002743ea509c 100644
> --- a/net/bluetooth/hidp/core.c
> +++ b/net/bluetooth/hidp/core.c
> @@ -1238,7 +1238,7 @@ static void hidp_session_run(struct hidp_session *session)
>  	smp_mb__after_atomic();
>  }
>  
> -static int hidp_session_wake_function(wait_queue_t *wait,
> +static int hidp_session_wake_function(wait_queue_entry_t *wait,
>  				      unsigned int mode,
>  				      int sync, void *key)
>  {
> -- 
> 2.11.0
> 
> -- 
> Cheers,
> Stephen Rothwell



-- 
Cheers,
Stephen Rothwell