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Message-ID: <401df01f-d2d8-4af1-94c4-8e36b968a847@broadcom.com>
Date: Tue, 9 Jan 2024 09:05:35 -0800
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Subject: Re: [PATCH] ARM64: Update __NR_compat_syscalls for
 statmount/listmount
To: Will Deacon <will@kernel.org>,
 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>
References: <20240109010906.429652-1-florian.fainelli@broadcom.com>
 <20240109095050.GA12915@willie-the-truck>
From: Florian Fainelli <florian.fainelli@broadcom.com>
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In-Reply-To: <20240109095050.GA12915@willie-the-truck>
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On 1/9/24 01:50, Will Deacon wrote:
> 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>

Thanks Will, looks like Linus already fast tracked the change:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f0a78b3e2a0c842cc7b4c2686f4a35681f02ca72
-- 
Florian


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