Re: [PATCH v2 07/29] ARM: add kexec_file_load system call number

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On Fri, Jan 18, 2019 at 05:18:13PM +0100, Arnd Bergmann wrote:
> diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
> index 86de9eb34296..20ed7e026723 100644
> --- a/arch/arm/tools/syscall.tbl
> +++ b/arch/arm/tools/syscall.tbl
> @@ -415,3 +415,4 @@
>  398	common	rseq			sys_rseq
>  399	common	io_pgetevents		sys_io_pgetevents
>  400	common	migrate_pages		sys_migrate_pages
> +401	common	kexec_file_load		sys_kexec_file_load

I presume on arm32 this would still return -ENOSYS.

> diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
> index 261216c3336e..2c30e6f145ff 100644
> --- a/arch/arm64/include/asm/unistd.h
> +++ b/arch/arm64/include/asm/unistd.h
> @@ -44,7 +44,7 @@
>  #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		401
> +#define __NR_compat_syscalls		402
>  #endif
>  
>  #define __ARCH_WANT_SYS_CLONE
> diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
> index f15bcbacb8f6..8ca1d4c304f4 100644
> --- a/arch/arm64/include/asm/unistd32.h
> +++ b/arch/arm64/include/asm/unistd32.h
> @@ -823,6 +823,8 @@ __SYSCALL(__NR_rseq, sys_rseq)
>  __SYSCALL(__NR_io_pgetevents, compat_sys_io_pgetevents)
>  #define __NR_migrate_pages 400
>  __SYSCALL(__NR_migrate_pages, compat_sys_migrate_pages)
> +#define __NR_kexec_file_load 401
> +__SYSCALL(__NR_kexec_file_load, sys_kexec_file_load)

For arm64:

Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>



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