linux-kernel - Re: [PATCH 1/2] asm-generic: Make msi.h a mandatory include/asm header

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Message-ID: <CAK7LNAQvZr48zXkyhii6E-wckYfakhh9gVD=DoBOt++TtPFEaw@mail.gmail.com>
Date:   Thu, 24 Oct 2019 23:44:23 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Michal Simek <michal.simek@...inx.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Michal Simek <monstr@...str.eu>, git@...inx.com,
        Palmer Dabbelt <palmer@...ive.com>,
        Christoph Hellwig <hch@...radead.org>, longman@...hat.com,
        Bjorn Helgaas <helgaas@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Arnd Bergmann <arnd@...db.de>,
        Jackie Liu <liuyun01@...inos.cn>,
        Wesley Terpstra <wesley@...ive.com>,
        Firoz Khan <firoz.khan@...aro.org>,
        sparclinux <sparclinux@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        linux-riscv@...ts.infradead.org,
        linux-arch <linux-arch@...r.kernel.org>,
        James Hogan <jhogan@...nel.org>,
        Vineet Gupta <vgupta@...opsys.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Will Deacon <will@...nel.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Burton <paul.burton@...s.com>,
        Cornelia Huck <cohuck@...hat.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Albert Ou <aou@...s.berkeley.edu>,
        arcml <linux-snps-arc@...ts.infradead.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Biggers <ebiggers@...gle.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        linux-mips@...r.kernel.org, Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [PATCH 1/2] asm-generic: Make msi.h a mandatory include/asm header

On Thu, Oct 24, 2019 at 7:13 PM Michal Simek <michal.simek@...inx.com> wrote:
>
> msi.h is generic for all architectures expect of x86 which has own version.

Maybe a typo?  "except"


Anyway, the code looks good to me.

Reviewed-by: Masahiro Yamada <yamada.masahiro@...ionext.com>


> Enabling MSI by including msi.h to architecture Kbuild is just additional
> step which doesn't need to be done.
> The patch was created based on request to enable MSI for Microblaze.
>
> Suggested-by: Christoph Hellwig <hch@...radead.org>
> Signed-off-by: Michal Simek <michal.simek@...inx.com>
> ---
>
> https://lore.kernel.org/linux-riscv/20191008154604.GA7903@infradead.org/
> ---
>  arch/arc/include/asm/Kbuild     | 1 -
>  arch/arm/include/asm/Kbuild     | 1 -
>  arch/arm64/include/asm/Kbuild   | 1 -
>  arch/mips/include/asm/Kbuild    | 1 -
>  arch/powerpc/include/asm/Kbuild | 1 -
>  arch/riscv/include/asm/Kbuild   | 1 -
>  arch/sparc/include/asm/Kbuild   | 1 -
>  include/asm-generic/Kbuild      | 1 +
>  8 files changed, 1 insertion(+), 7 deletions(-)
>
> diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
> index 393d4f5e1450..1b505694691e 100644
> --- a/arch/arc/include/asm/Kbuild
> +++ b/arch/arc/include/asm/Kbuild
> @@ -17,7 +17,6 @@ generic-y += local64.h
>  generic-y += mcs_spinlock.h
>  generic-y += mm-arch-hooks.h
>  generic-y += mmiowb.h
> -generic-y += msi.h
>  generic-y += parport.h
>  generic-y += percpu.h
>  generic-y += preempt.h
> diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
> index 68ca86f85eb7..fa579b23b4df 100644
> --- a/arch/arm/include/asm/Kbuild
> +++ b/arch/arm/include/asm/Kbuild
> @@ -12,7 +12,6 @@ generic-y += local.h
>  generic-y += local64.h
>  generic-y += mm-arch-hooks.h
>  generic-y += mmiowb.h
> -generic-y += msi.h
>  generic-y += parport.h
>  generic-y += preempt.h
>  generic-y += seccomp.h
> diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
> index 98a5405c8558..bd23f87d6c55 100644
> --- a/arch/arm64/include/asm/Kbuild
> +++ b/arch/arm64/include/asm/Kbuild
> @@ -16,7 +16,6 @@ generic-y += local64.h
>  generic-y += mcs_spinlock.h
>  generic-y += mm-arch-hooks.h
>  generic-y += mmiowb.h
> -generic-y += msi.h
>  generic-y += qrwlock.h
>  generic-y += qspinlock.h
>  generic-y += serial.h
> diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
> index c8b595c60910..61b0fc2026e6 100644
> --- a/arch/mips/include/asm/Kbuild
> +++ b/arch/mips/include/asm/Kbuild
> @@ -13,7 +13,6 @@ generic-y += irq_work.h
>  generic-y += local64.h
>  generic-y += mcs_spinlock.h
>  generic-y += mm-arch-hooks.h
> -generic-y += msi.h
>  generic-y += parport.h
>  generic-y += percpu.h
>  generic-y += preempt.h
> diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
> index 64870c7be4a3..17726f2e46de 100644
> --- a/arch/powerpc/include/asm/Kbuild
> +++ b/arch/powerpc/include/asm/Kbuild
> @@ -10,4 +10,3 @@ generic-y += local64.h
>  generic-y += mcs_spinlock.h
>  generic-y += preempt.h
>  generic-y += vtime.h
> -generic-y += msi.h
> diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
> index 16970f246860..1efaeddf1e4b 100644
> --- a/arch/riscv/include/asm/Kbuild
> +++ b/arch/riscv/include/asm/Kbuild
> @@ -22,7 +22,6 @@ generic-y += kvm_para.h
>  generic-y += local.h
>  generic-y += local64.h
>  generic-y += mm-arch-hooks.h
> -generic-y += msi.h
>  generic-y += percpu.h
>  generic-y += preempt.h
>  generic-y += sections.h
> diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
> index b6212164847b..62de2eb2773d 100644
> --- a/arch/sparc/include/asm/Kbuild
> +++ b/arch/sparc/include/asm/Kbuild
> @@ -18,7 +18,6 @@ generic-y += mcs_spinlock.h
>  generic-y += mm-arch-hooks.h
>  generic-y += mmiowb.h
>  generic-y += module.h
> -generic-y += msi.h
>  generic-y += preempt.h
>  generic-y += serial.h
>  generic-y += trace_clock.h
> diff --git a/include/asm-generic/Kbuild b/include/asm-generic/Kbuild
> index adff14fcb8e4..ddfee1bd9dc1 100644
> --- a/include/asm-generic/Kbuild
> +++ b/include/asm-generic/Kbuild
> @@ -4,4 +4,5 @@
>  # (This file is not included when SRCARCH=um since UML borrows several
>  # asm headers from the host architecutre.)
>
> +mandatory-y += msi.h
>  mandatory-y += simd.h
> --
> 2.17.1
>


-- 
Best Regards
Masahiro Yamada