linux-kernel - Re: [net/9p/9pnet.c] Compile error

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Message-ID: <20081021111737.4c893b27@varda>
Date:	Tue, 21 Oct 2008 11:17:37 +0200
From:	Alejandro Riveira Fernández 
	<ariveira@...il.com>
To:	"Eric Van Hensbergen" <ericvh@...il.com>
Cc:	"Jason Baron" <jbaron@...hat.com>,
	"Alejandro Riveira Fernández" 
	<alejandro.riveira@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	v9fs-developer@...ts.sourceforge.net, lucho@...kov.net
Subject: Re: [net/9p/9pnet.c] Compile error

El Mon, 20 Oct 2008 16:04:43 -0500
"Eric Van Hensbergen" <ericvh@...il.com> escribió:

> On Mon, Oct 20, 2008 at 3:49 PM, Jason Baron <jbaron@...hat.com> wrote:
> > On Mon, Oct 20, 2008 at 09:27:25PM +0200, Alejandro Riveira Fernández wrote:
> >> Current Git
> >>  v2.6.27-6030-g6da0b38
> >>
> >>  I get a build error
> >>
> >> Kernel: arch/x86/boot/bzImage is ready  (#17)
> >>   Building modules, stage 2.
> >>   MODPOST 571 modules
> >> ERROR: "p9_debug_level" [net/9p/9pnet.ko] undefined!
> >> make[3]: *** [__modpost] Error 1
> >> make[2]: *** [modules] Error 2
> >> make[1]: *** [sub-make] Error 2
> >> make: *** [all] Error 2
> >>
> 
> Sorry for the mess.  I'm pushing the following patch to my for-linus
> tree which resolves the issue.
> 
>            -eric
> 
> 9p: fix debug build error
> 
> Fixes build problem with 9p when building with debug disabled.
> Also contains some fixes for warnings which pop up when
> CONFIG_NET_9P_DEBUG is disabled.
> 
> Signed-off-by: Eric Van Hensbergen <ericvh@...il.com>

 Thanks for the quick response. _I tried to apply the patch
but failed

 $ git am ../9p.mbox   
   Applying: Compile error fatal: corrupt patch at line 57
   Patch failed at 0001.
   When you have resolved this problem run "git am --resolved".
   If you would prefer to skip this patch, instead run "git am --skip".
   To restore the original branch and stop patching run "git am --abort".

 Will wait until the fix hits mainline ;). Thanks again



> diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
> index d2c60c7..b77c147 100644
> --- a/include/net/9p/9p.h
> +++ b/include/net/9p/9p.h
> @@ -56,9 +56,9 @@ enum p9_debug_flags {
>  	P9_DEBUG_PKT =		(1<<10),
>  };
> 
> +#ifdef CONFIG_NET_9P_DEBUG
>  extern unsigned int p9_debug_level;
> 
> -#ifdef CONFIG_NET_9P_DEBUG
>  #define P9_DPRINTK(level, format, arg...) \
>  do {  \
>  	if ((p9_debug_level & level) == level) {\
> diff --git a/net/9p/protocol.c b/net/9p/protocol.c
> index 29be524..908e79f 100644
> --- a/net/9p/protocol.c
> +++ b/net/9p/protocol.c
> @@ -53,6 +53,7 @@
>  static int
>  p9pdu_writef(struct p9_fcall *pdu, int optional, const char *fmt, ...);
> 
> +#ifdef CONFIG_NET_9P_DEBUG
>  void
>  p9pdu_dump(int way, struct p9_fcall *pdu)
>  {
> @@ -81,6 +82,12 @@ p9pdu_dump(int way, struct p9_fcall *pdu)
>  	else
>  		P9_DPRINTK(P9_DEBUG_PKT, "]]](%d) %s\n", datalen, buf);
>  }
> +#else
> +void
> +p9pdu_dump(int way, struct p9_fcall *pdu)
> +{
> +}
> +#endif
>  EXPORT_SYMBOL(p9pdu_dump);
> 
>  void p9stat_free(struct p9_wstat *stbuf)
> @@ -542,8 +549,10 @@ int p9pdu_finalize(struct p9_fcall *pdu)
>  	err = p9pdu_writef(pdu, 0, "d", size);
>  	pdu->size = size;
> 
> +#ifdef CONFIG_NET_9P_DEBUG
>  	if ((p9_debug_level & P9_DEBUG_PKT) == P9_DEBUG_PKT)
>  		p9pdu_dump(0, pdu);
> +#endif
> 
>  	P9_DPRINTK(P9_DEBUG_9P, ">>> size=%d type: %d tag: %d\n", pdu->size,
>  							pdu->id, pdu->tag);
> diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
> index be65d82..1df0356 100644
> --- a/net/9p/trans_fd.c
> +++ b/net/9p/trans_fd.c
> @@ -678,11 +678,9 @@ static int p9_fd_request(struct p9_client
> *client, struct p9_req_t *req)
> 
>  static int p9_fd_cancel(struct p9_client *client, struct p9_req_t *req)
>  {
> -	struct p9_trans_fd *ts = client->trans;
> -	struct p9_conn *m = ts->conn;
>  	int ret = 1;
> 
> -	P9_DPRINTK(P9_DEBUG_TRANS, "mux %p req %p\n", m, req);
> +	P9_DPRINTK(P9_DEBUG_TRANS, "client %p req %p\n", client, req);
> 
>  	spin_lock(&client->lock);
>  	list_del(&req->req_list);
> --
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