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Date: Tue, 9 Jan 2024 09:50:51 +0000
From: Will Deacon <will@kernel.org>
To: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: linux-arm-kernel@lists.infradead.org,
	Catalin Marinas <catalin.marinas@arm.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Arnd Bergmann <arnd@arndb.de>,
	"peterz@infradead.org" <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Rick Edgecombe <rick.p.edgecombe@intel.com>,
	Nhat Pham <nphamcs@gmail.com>, Palmer Dabbelt <palmer@sifive.com>,
	Sohil Mehta <sohil.mehta@intel.com>,
	Miklos Szeredi <mszeredi@redhat.com>,
	Christian Brauner <brauner@kernel.org>, Ian Kent <raven@themaw.net>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] ARM64: Update __NR_compat_syscalls for
 statmount/listmount
Message-ID: <20240109095050.GA12915@willie-the-truck>
References: <20240109010906.429652-1-florian.fainelli@broadcom.com>
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User-Agent: Mutt/1.10.1 (2018-07-13)

On Mon, Jan 08, 2024 at 05:09:04PM -0800, Florian Fainelli wrote:
> Commit d8b0f5465012 ("wire up syscalls for statmount/listmount") added
> two new system calls to arch/arm64/include/asm/unistd32.h but forgot to
> update the __NR_compat_syscalls number, thus causing the following build
> failures:
> 
> ./arch/arm64/include/asm/unistd32.h:922:24: error: array index in initializer exceeds array bounds
>   922 | #define __NR_statmount 457
>       |                        ^~~
> arch/arm64/kernel/sys32.c:130:34: note: in definition of macro '__SYSCALL'
>   130 | #define __SYSCALL(nr, sym)      [nr] = __arm64_##sym,
>       |                                  ^~
> 
> Bump up the number by two to accomodate for the new system calls added.
> 
> Fixes: d8b0f5465012 ("wire up syscalls for statmount/listmount")
> Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
> ---
>  arch/arm64/include/asm/unistd.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
> index 531effca5f1f..b63f870debaf 100644
> --- a/arch/arm64/include/asm/unistd.h
> +++ b/arch/arm64/include/asm/unistd.h
> @@ -39,7 +39,7 @@
>  #define __ARM_NR_compat_set_tls		(__ARM_NR_COMPAT_BASE + 5)
>  #define __ARM_NR_COMPAT_END		(__ARM_NR_COMPAT_BASE + 0x800)
>  
> -#define __NR_compat_syscalls		457
> +#define __NR_compat_syscalls		459
>  #endif
>  
>  #define __ARCH_WANT_SYS_CLONE
> -- 
> 2.34.1

Acked-by: Will Deacon <will@kernel.org>

Will