linux-kernel - Re: linux-next: build failure after merge of the final tree (staging tree related)

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Date:	Wed, 16 May 2012 08:10:38 -0700
From:	Greg KH <greg@...ah.com>
To:	Dan Magenheimer <dan.magenheimer@...cle.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the final tree (staging
 tree related)

On Wed, May 16, 2012 at 07:17:02AM -0700, Dan Magenheimer wrote:
> > From: Greg KH [mailto:greg@...ah.com]
> > Subject: Re: linux-next: build failure after merge of the final tree (staging tree related)
> > 
> > On Wed, May 16, 2012 at 08:06:59PM +1000, Stephen Rothwell wrote:
> > > Hi Greg,
> > >
> > > After merging the final tree, today's linux-next build (powerpc
> > > allyesconfig) failed like this:
> > >
> > > drivers/staging/zsmalloc/zsmalloc-main.c: In function 'zs_map_object':
> > > drivers/staging/zsmalloc/zsmalloc-main.c:704:3: error: implicit declaration of function 'set_pte' [-
> > Werror=implicit-function-declaration]
> > > drivers/staging/zsmalloc/zsmalloc-main.c: In function 'zs_unmap_object':
> > > drivers/staging/zsmalloc/zsmalloc-main.c:738:3: error: implicit declaration of function
> > '__flush_tlb_one' [-Werror=implicit-function-declaration]
> > >
> > > Presumably caused by commit 49b81a3c7415 ("ramster: switch over to
> > > zsmalloc and crypto interface") which now has CONFIG_RAMSTER selecting
> > > CONFIG_ZSMALLOC explicitly which in turn ignores the dependency of
> > > CONFIG_ZSMALLOC on X86 ...
> > >
> > > I have reverted that commit for today.
> > 
> > Ick, sorry about that.
> > 
> > Dan, care to send me a follow-on patch, or do you just want me to revert
> > this patch from my tree for now?
> 
> Rats.  Sorry.
> 
> Greg, given that the solution for making zsmalloc portable
> is still being debated[1] and it doesn't look like it will
> be finalized before the looming window,  I guess the
> best choice is to revert the patch and ramster will fall
> back to its captive copy of the less-efficient-but-portable
> xvmalloc for now. :-(

Ok, now reverted, thanks.

greg k-h
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