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

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Message-ID: <e8780a61-96e9-4050-b0d5-8e6be43e2e27@sirena.org.uk>
Date:   Tue, 18 Apr 2023 18:06:58 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Tianyu Lan <tiala@...rosoft.com>,
        Saurabh Sengar <ssengar@...ux.microsoft.com>,
        Wei Liu <wei.liu@...nel.org>,
        Michael Kelley <mikelley@...rosoft.com>,
        Borislav Petkov <bp@...en8.de>, x86@...nel.org
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        linux-hyperv@...r.kernel.org,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Dexuan Cui <decui@...rosoft.com>
Subject: Re: linux-next: build failure after merge of the hyperv tree

On Tue, Apr 18, 2023 at 06:00:21PM +0100, broonie@...nel.org wrote:
> Hi all,
> 
> After merging the hyperv tree, today's linux-next build (x86 allmodconfig)
> failed like this:

Adding more Hyper-V CCs, sorry the capitialisation in MAINTAINERS
confused my search.

> 
> /tmp/next/build/arch/x86/kernel/x86_init.c:36:12: error: static declaration of 'set_rtc_noop' follows non-static declaration
>    36 | static int set_rtc_noop(const struct timespec64 *now) { return -EINVAL; }
>       |            ^~~~~~~~~~~~
> In file included from /tmp/next/build/arch/x86/include/asm/mpspec.h:7,
>                  from /tmp/next/build/arch/x86/include/asm/topology.h:38,
>                  from /tmp/next/build/include/linux/topology.h:36,
>                  from /tmp/next/build/include/linux/gfp.h:8,
>                  from /tmp/next/build/include/linux/xarray.h:15,
>                  from /tmp/next/build/include/linux/radix-tree.h:21,
>                  from /tmp/next/build/include/linux/idr.h:15,
>                  from /tmp/next/build/include/linux/kernfs.h:12,
>                  from /tmp/next/build/include/linux/sysfs.h:16,
>                  from /tmp/next/build/include/linux/kobject.h:20,
>                  from /tmp/next/build/include/linux/pci.h:35,
>                  from /tmp/next/build/arch/x86/kernel/x86_init.c:9:
> /tmp/next/build/arch/x86/include/asm/x86_init.h:333:12: note: previous declaration of 'set_rtc_noop' with type 'int(const struct timespec64 *)'
>   333 | extern int set_rtc_noop(const struct timespec64 *now);
>       |            ^~~~~~~~~~~~
> /tmp/next/build/arch/x86/kernel/x86_init.c:37:13: error: static declaration of 'get_rtc_noop' follows non-static declaration
>    37 | static void get_rtc_noop(struct timespec64 *now) { }
>       |             ^~~~~~~~~~~~
> In file included from /tmp/next/build/arch/x86/include/asm/mpspec.h:7,
>                  from /tmp/next/build/arch/x86/include/asm/topology.h:38,
>                  from /tmp/next/build/include/linux/topology.h:36,
>                  from /tmp/next/build/include/linux/gfp.h:8,
>                  from /tmp/next/build/include/linux/xarray.h:15,
>                  from /tmp/next/build/include/linux/radix-tree.h:21,
>                  from /tmp/next/build/include/linux/idr.h:15,
>                  from /tmp/next/build/include/linux/kernfs.h:12,
>                  from /tmp/next/build/include/linux/sysfs.h:16,
>                  from /tmp/next/build/include/linux/kobject.h:20,
>                  from /tmp/next/build/include/linux/pci.h:35,
>                  from /tmp/next/build/arch/x86/kernel/x86_init.c:9:
> /tmp/next/build/arch/x86/include/asm/x86_init.h:334:13: note: previous declaration of 'get_rtc_noop' with type 'void(struct timespec64 *)'
>   334 | extern void get_rtc_noop(struct timespec64 *now);
>       |             ^~~~~~~~~~~~
> 
> Caused by commit
> 
>   25dcc7316ef7def25c ("x86/init: Make get/set_rtc_noop() public")
> 
> I will use the hyperv tree from yesterday instead.

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