Subject: Re: [PATCH v3 10/24] sparc: Remove COMMAND_LINE_SIZE from uapi
To:     Alexandre Ghiti <alexghiti@rivosinc.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Richard Henderson <richard.henderson@linaro.org>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@kernel.org>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Huacai Chen <chenhuacai@kernel.org>,
        WANG Xuerui <kernel@xen0n.name>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Michal Simek <monstr@monstr.eu>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        "James E . J . Bottomley" <James.Bottomley@HansenPartnership.com>,
        Helge Deller <deller@gmx.de>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Nicholas Piggin <npiggin@gmail.com>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Heiko Carstens <hca@linux.ibm.com>,
        Vasily Gorbik <gor@linux.ibm.com>,
        Alexander Gordeev <agordeev@linux.ibm.com>,
        Christian Borntraeger <borntraeger@linux.ibm.com>,
        Sven Schnelle <svens@linux.ibm.com>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Rich Felker <dalias@libc.org>,
        "David S . Miller" <davem@davemloft.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>, <x86@kernel.org>,
        "H . Peter Anvin" <hpa@zytor.com>, Chris Zankel <chris@zankel.net>,
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CC:     Palmer Dabbelt <palmer@rivosinc.com>
References: <20230214074925.228106-1-alexghiti@rivosinc.com>
 <20230214074925.228106-11-alexghiti@rivosinc.com>
From:   Sergey Shtylyov <s.shtylyov@omp.ru>
Organization: Open Mobile Platform
Message-ID: <017f0b40-8021-8b3b-24d2-c70661b6b292@omp.ru>
Date:   Tue, 14 Feb 2023 11:50:23 +0300
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On 2/14/23 10:49 AM, Alexandre Ghiti wrote:

> From: Palmer Dabbelt <palmer@rivosinc.com>
> 
> As far as I can tell this is not used by userspace and thus should not
> be part of the user-visible API.
> 
> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
> ---
>  arch/sparc/include/asm/setup.h      | 6 +++++-
>  arch/sparc/include/uapi/asm/setup.h | 7 -------
>  2 files changed, 5 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h
> index 72205684e51e..d1384ed92547 100644
> --- a/arch/sparc/include/asm/setup.h
> +++ b/arch/sparc/include/asm/setup.h
> @@ -7,7 +7,11 @@
>  
>  #include <linux/interrupt.h>
>  
> -#include <uapi/asm/setup.h>
> +#if defined(__sparc__) && defined(__arch64__)

   Mhm, I don't think these two can be #define'd simulaneously...

> +# define COMMAND_LINE_SIZE 2048
> +#else
> +# define COMMAND_LINE_SIZE 256
> +#endif
>  
>  extern char reboot_command[];
>  
> diff --git a/arch/sparc/include/uapi/asm/setup.h b/arch/sparc/include/uapi/asm/setup.h
> index 3c208a4dd464..c3cf1b0d30b3 100644
> --- a/arch/sparc/include/uapi/asm/setup.h
> +++ b/arch/sparc/include/uapi/asm/setup.h
> @@ -6,11 +6,4 @@
>  #ifndef _UAPI_SPARC_SETUP_H
>  #define _UAPI_SPARC_SETUP_H
>  
> -#if defined(__sparc__) && defined(__arch64__)
> -# define COMMAND_LINE_SIZE 2048
> -#else
> -# define COMMAND_LINE_SIZE 256
> -#endif
> -
> -
>  #endif /* _UAPI_SPARC_SETUP_H */

MBR, Sergey