linux-kernel - Re: [PATCH v2] iSeries: Remove unused mf

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Message-ID: <alpine.LNX.2.00.1011182044490.3651@swampdragon.chaosbits.net>
Date:	Thu, 18 Nov 2010 20:45:38 +0100 (CET)
From:	Jesper Juhl <jj@...osbits.net>
To:	Michael Ellerman <michael@...erman.id.au>
cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Paul Mackerras <paulus@...ba.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] iSeries: Remove unused mf_getSrcHistory function and
 caller.

On Fri, 5 Nov 2010, Jesper Juhl wrote:

> On Tue, 2 Nov 2010, Michael Ellerman wrote:
> 
> > On Mon, 2010-11-01 at 22:20 +0100, Jesper Juhl wrote:
> > > Hi Stephen,
> > > 
> > > On Tue, 2 Nov 2010, Stephen Rothwell wrote:
> > > 
> > > > On Mon, 1 Nov 2010 21:06:23 +0100 (CET) Jesper Juhl <jj@...osbits.net> wrote:
> > > > >
> > > > > Remove unused function 'mf_getSrcHistory' (that will never be used ever 
> > > > > according to Stephen Rothwell).
> > > > > 
> > > > > Signed-off-by: Jesper Juhl <jj@...osbits.net>
> > > > 
> > > > Acked-by: Stephen Rothwell <sfr@...b.auug.org.au>
> > > > 
> > > 
> > > Ok, so if you are the (unofficial) iSeries maintainer and you don't merge 
> > > the patch somewhere that'll eventually go up-stream, but just ACK it 
> > > (thank you for that btw), then where do I send it to get it merged?
> > 
> > Here. ie. linuxppc-dev.
> > 
> > But, while you're removing it you should remove the #if 0'ed callsite as
> > well, see mf_src_proc_show() in that file. :)
> > 
> Done. See patch below.
> 
> 
> Remove unused function 'mf_getSrcHistory' (that will never be used 
> ever according to Stephen Rothwell) and also remove most of (under 'if 
> 0') code from mf_src_proc_show() where the function was called.
> 
> Signed-off-by: Jesper Juhl <jj@...osbits.net>
> ---
>  mf.c |   62 
> --------------------------------------------------------------
>  1 file changed, 62 deletions(-)
> 
> diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c
> index 42d0a88..b5e026b 100644
> --- a/arch/powerpc/platforms/iseries/mf.c
> +++ b/arch/powerpc/platforms/iseries/mf.c
> @@ -1045,71 +1045,9 @@ static const struct file_operations mf_side_proc_fops = {
>  	.write		= mf_side_proc_write,
>  };
>  
> -#if 0
> -static void mf_getSrcHistory(char *buffer, int size)
> -{
> -	struct IplTypeReturnStuff return_stuff;
> -	struct pending_event *ev = new_pending_event();
> -	int rc = 0;
> -	char *pages[4];
> -
> -	pages[0] = kmalloc(4096, GFP_ATOMIC);
> -	pages[1] = kmalloc(4096, GFP_ATOMIC);
> -	pages[2] = kmalloc(4096, GFP_ATOMIC);
> -	pages[3] = kmalloc(4096, GFP_ATOMIC);
> -	if ((ev == NULL) || (pages[0] == NULL) || (pages[1] == NULL)
> -			 || (pages[2] == NULL) || (pages[3] == NULL))
> -		return -ENOMEM;
> -
> -	return_stuff.xType = 0;
> -	return_stuff.xRc = 0;
> -	return_stuff.xDone = 0;
> -	ev->event.hp_lp_event.xSubtype = 6;
> -	ev->event.hp_lp_event.x.xSubtypeData =
> -		subtype_data('M', 'F', 'V', 'I');
> -	ev->event.data.vsp_cmd.xEvent = &return_stuff;
> -	ev->event.data.vsp_cmd.cmd = 4;
> -	ev->event.data.vsp_cmd.lp_index = HvLpConfig_getLpIndex();
> -	ev->event.data.vsp_cmd.result_code = 0xFF;
> -	ev->event.data.vsp_cmd.reserved = 0;
> -	ev->event.data.vsp_cmd.sub_data.page[0] = iseries_hv_addr(pages[0]);
> -	ev->event.data.vsp_cmd.sub_data.page[1] = iseries_hv_addr(pages[1]);
> -	ev->event.data.vsp_cmd.sub_data.page[2] = iseries_hv_addr(pages[2]);
> -	ev->event.data.vsp_cmd.sub_data.page[3] = iseries_hv_addr(pages[3]);
> -	mb();
> -	if (signal_event(ev) != 0)
> -		return;
> -
> - 	while (return_stuff.xDone != 1)
> - 		udelay(10);
> - 	if (return_stuff.xRc == 0)
> - 		memcpy(buffer, pages[0], size);
> -	kfree(pages[0]);
> -	kfree(pages[1]);
> -	kfree(pages[2]);
> -	kfree(pages[3]);
> -}
> -#endif
> -
>  static int mf_src_proc_show(struct seq_file *m, void *v)
>  {
> -#if 0
> -	int len;
> -
> -	mf_getSrcHistory(page, count);
> -	len = count;
> -	len -= off;
> -	if (len < count) {
> -		*eof = 1;
> -		if (len <= 0)
> -			return 0;
> -	} else
> -		len = count;
> -	*start = page + off;
> -	return len;
> -#else
>  	return 0;
> -#endif
>  }
>  
>  static int mf_src_proc_open(struct inode *inode, struct file *file)
> 
> 
> 
> 

PING.

Is this going to get merged somewhere or is there a problem?


-- 
Jesper Juhl <jj@...osbits.net>            http://www.chaosbits.net/
Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please.

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