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

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Message-ID: <20150330071536.GF24899@n2100.arm.linux.org.uk>
Date:	Mon, 30 Mar 2015 08:15:37 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Nathan Lynch <nathan_lynch@...tor.com>
Subject: Re: linux-next: build failure after merge of the tip tree

On Mon, Mar 30, 2015 at 05:13:34PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the tip tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
> 
> arch/arm/kernel/vdso.c: In function 'tk_is_cntvct':
> arch/arm/kernel/vdso.c:273:15: error: 'const struct timekeeper' has no member named 'tkr'
>   if (strcmp(tk->tkr.clock->name, "arch_sys_counter") != 0)
>                ^
> arch/arm/kernel/vdso.c: In function 'update_vsyscall':
> arch/arm/kernel/vdso.c:319:32: error: 'struct timekeeper' has no member named 'tkr'
>    vdso_data->cs_cycle_last = tk->tkr.cycle_last;
>                                 ^
> arch/arm/kernel/vdso.c:321:36: error: 'struct timekeeper' has no member named 'tkr'
>    vdso_data->xtime_clock_snsec = tk->tkr.xtime_nsec;
>                                     ^
> arch/arm/kernel/vdso.c:322:27: error: 'struct timekeeper' has no member named 'tkr'
>    vdso_data->cs_mult  = tk->tkr.mult;
>                            ^
> arch/arm/kernel/vdso.c:323:28: error: 'struct timekeeper' has no member named 'tkr'
>    vdso_data->cs_shift  = tk->tkr.shift;
>                             ^
> arch/arm/kernel/vdso.c:324:27: error: 'struct timekeeper' has no member named 'tkr'
>    vdso_data->cs_mask  = tk->tkr.mask;
>                            ^
> 
> Caused by commit 876e78818def ("time: Rename timekeeper::tkr to
> timekeeper::tkr_mono") from the tip tree interacting with commit
> ecf99a439105 ("ARM: 8331/1: VDSO initialization, mapping, and
> synchronization") from the arm tree.
> 
> I added this merge fix patch for today (is that all that is needed?):

I'll drop the VDSO stuff from the ARM tree; I can't see a way to keep
it in my tree and keep my tree buildable without dragging in the tip
tree.

The ARM VDSO stuff will just have to wait for 4.2 instead.

-- 
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
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