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From:   Huacai Chen <chenhuacai@kernel.org>
Date:   Sat, 4 Jun 2022 21:13:06 +0800
Message-ID: <CAAhV-H4P_A4CVJp7Zh0YTJWP16Q5k6jo-+-=Q4C3Q7GjMAzRog@mail.gmail.com>
Subject: Re: mainline build failure due to fa84f89395e0 ("irqchip/loongson-liointc:
 Fix build error for LoongArch")
To:     Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc:     Huacai Chen <chenhuacai@loongson.cn>,
        Marc Zyngier <maz@kernel.org>, WANG Xuerui <git@xen0n.name>,
        Jiaxun Yang <jiaxun.yang@flygoat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        "open list:MIPS" <linux-mips@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>
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Hi, Sudip,

On Sat, Jun 4, 2022 at 8:38 PM Sudip Mukherjee
<sudipm.mukherjee@gmail.com> wrote:
>
> Hi All,
>
> The latest mainline kernel branch fails to build for "mips loongson2k_defconfig"
> with the error:
>
> drivers/irqchip/irq-loongson-liointc.c: In function 'liointc_chained_handle_irq':
> drivers/irqchip/irq-loongson-liointc.c:60:20: error: implicit declaration of function 'cpu_logical_map' [-Werror=implicit-function-declaration]
>    60 |         int core = cpu_logical_map(smp_processor_id()) % LIOINTC_NUM_CORES;
>
>
> git bisect pointed to fa84f89395e0 ("irqchip/loongson-liointc: Fix build error for LoongArch")
>
> And, reverting it on top of mainline branch has fixed the build failure.
Jiaxun has already sent a patch to fix it.

Huacai
>
> --
> Regards
> Sudip