Re: [PATCH v4 3/5] arch: Register fchmodat2, usually as syscall 452

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On 2023-07-11, Alexey Gladkov <legion@xxxxxxxxxx> wrote:
> From: Palmer Dabbelt <palmer@xxxxxxxxxx>
> 
> This registers the new fchmodat2 syscall in most places as nuber 452,
> with alpha being the exception where it's 562.  I found all these sites
> by grepping for fspick, which I assume has found me everything.

Shouldn't this patch be squashed with the patch that adds the syscall?
At least, that's how I've usually seen it done...

> Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxx>
> Signed-off-by: Alexey Gladkov <legion@xxxxxxxxxx>
> ---
>  arch/alpha/kernel/syscalls/syscall.tbl      | 1 +
>  arch/arm/tools/syscall.tbl                  | 1 +
>  arch/arm64/include/asm/unistd.h             | 2 +-
>  arch/arm64/include/asm/unistd32.h           | 2 ++
>  arch/ia64/kernel/syscalls/syscall.tbl       | 1 +
>  arch/m68k/kernel/syscalls/syscall.tbl       | 1 +
>  arch/microblaze/kernel/syscalls/syscall.tbl | 1 +
>  arch/mips/kernel/syscalls/syscall_n32.tbl   | 1 +
>  arch/mips/kernel/syscalls/syscall_n64.tbl   | 1 +
>  arch/mips/kernel/syscalls/syscall_o32.tbl   | 1 +
>  arch/parisc/kernel/syscalls/syscall.tbl     | 1 +
>  arch/powerpc/kernel/syscalls/syscall.tbl    | 1 +
>  arch/s390/kernel/syscalls/syscall.tbl       | 1 +
>  arch/sh/kernel/syscalls/syscall.tbl         | 1 +
>  arch/sparc/kernel/syscalls/syscall.tbl      | 1 +
>  arch/x86/entry/syscalls/syscall_32.tbl      | 1 +
>  arch/x86/entry/syscalls/syscall_64.tbl      | 1 +
>  arch/xtensa/kernel/syscalls/syscall.tbl     | 1 +
>  include/uapi/asm-generic/unistd.h           | 5 ++++-
>  19 files changed, 23 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
> index 1f13995d00d7..ad37569d0507 100644
> --- a/arch/alpha/kernel/syscalls/syscall.tbl
> +++ b/arch/alpha/kernel/syscalls/syscall.tbl
> @@ -491,3 +491,4 @@
>  559	common  futex_waitv                     sys_futex_waitv
>  560	common	set_mempolicy_home_node		sys_ni_syscall
>  561	common	cachestat			sys_cachestat
> +562	common	fchmodat2			sys_fchmodat2
> diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
> index 8ebed8a13874..c572d6c3dee0 100644
> --- a/arch/arm/tools/syscall.tbl
> +++ b/arch/arm/tools/syscall.tbl
> @@ -465,3 +465,4 @@
>  449	common	futex_waitv			sys_futex_waitv
>  450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	common	cachestat			sys_cachestat
> +452	common	fchmodat2			sys_fchmodat2
> diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
> index 64a514f90131..bd77253b62e0 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		452
> +#define __NR_compat_syscalls		453
>  #endif
>  
>  #define __ARCH_WANT_SYS_CLONE
> diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
> index d952a28463e0..78b68311ec81 100644
> --- a/arch/arm64/include/asm/unistd32.h
> +++ b/arch/arm64/include/asm/unistd32.h
> @@ -909,6 +909,8 @@ __SYSCALL(__NR_futex_waitv, sys_futex_waitv)
>  __SYSCALL(__NR_set_mempolicy_home_node, sys_set_mempolicy_home_node)
>  #define __NR_cachestat 451
>  __SYSCALL(__NR_cachestat, sys_cachestat)
> +#define __NR_fchmodat2 452
> +__SYSCALL(__NR_fchmodat2, sys_fchmodat2)
>  
>  /*
>   * Please add new compat syscalls above this comment and update
> diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl
> index f8c74ffeeefb..83d8609aec03 100644
> --- a/arch/ia64/kernel/syscalls/syscall.tbl
> +++ b/arch/ia64/kernel/syscalls/syscall.tbl
> @@ -372,3 +372,4 @@
>  449	common  futex_waitv                     sys_futex_waitv
>  450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	common	cachestat			sys_cachestat
> +452	common	fchmodat2			sys_fchmodat2
> diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
> index 4f504783371f..259ceb125367 100644
> --- a/arch/m68k/kernel/syscalls/syscall.tbl
> +++ b/arch/m68k/kernel/syscalls/syscall.tbl
> @@ -451,3 +451,4 @@
>  449	common  futex_waitv                     sys_futex_waitv
>  450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	common	cachestat			sys_cachestat
> +452	common	fchmodat2			sys_fchmodat2
> diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
> index 858d22bf275c..a3798c2637fd 100644
> --- a/arch/microblaze/kernel/syscalls/syscall.tbl
> +++ b/arch/microblaze/kernel/syscalls/syscall.tbl
> @@ -457,3 +457,4 @@
>  449	common  futex_waitv                     sys_futex_waitv
>  450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	common	cachestat			sys_cachestat
> +452	common	fchmodat2			sys_fchmodat2
> diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
> index 1976317d4e8b..152034b8e0a0 100644
> --- a/arch/mips/kernel/syscalls/syscall_n32.tbl
> +++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
> @@ -390,3 +390,4 @@
>  449	n32	futex_waitv			sys_futex_waitv
>  450	n32	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	n32	cachestat			sys_cachestat
> +452	n32	fchmodat2			sys_fchmodat2
> diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
> index cfda2511badf..cb5e757f6621 100644
> --- a/arch/mips/kernel/syscalls/syscall_n64.tbl
> +++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
> @@ -366,3 +366,4 @@
>  449	n64	futex_waitv			sys_futex_waitv
>  450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	n64	cachestat			sys_cachestat
> +452	n64	fchmodat2			sys_fchmodat2
> diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
> index 7692234c3768..1a646813afdc 100644
> --- a/arch/mips/kernel/syscalls/syscall_o32.tbl
> +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
> @@ -439,3 +439,4 @@
>  449	o32	futex_waitv			sys_futex_waitv
>  450	o32	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	o32	cachestat			sys_cachestat
> +452	o32	fchmodat2			sys_fchmodat2
> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> index a0a9145b6dd4..e97c175b56f9 100644
> --- a/arch/parisc/kernel/syscalls/syscall.tbl
> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> @@ -450,3 +450,4 @@
>  449	common	futex_waitv			sys_futex_waitv
>  450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	common	cachestat			sys_cachestat
> +452	common	fchmodat2			sys_fchmodat2
> diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
> index 8c0b08b7a80e..20e50586e8a2 100644
> --- a/arch/powerpc/kernel/syscalls/syscall.tbl
> +++ b/arch/powerpc/kernel/syscalls/syscall.tbl
> @@ -538,3 +538,4 @@
>  449	common  futex_waitv                     sys_futex_waitv
>  450 	nospu	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	common	cachestat			sys_cachestat
> +452	common	fchmodat2			sys_fchmodat2
> diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
> index a6935af2235c..0122cc156952 100644
> --- a/arch/s390/kernel/syscalls/syscall.tbl
> +++ b/arch/s390/kernel/syscalls/syscall.tbl
> @@ -454,3 +454,4 @@
>  449  common	futex_waitv		sys_futex_waitv			sys_futex_waitv
>  450  common	set_mempolicy_home_node	sys_set_mempolicy_home_node	sys_set_mempolicy_home_node
>  451  common	cachestat		sys_cachestat			sys_cachestat
> +452  common	fchmodat2		sys_fchmodat2			sys_fchmodat2
> diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
> index 97377e8c5025..e90d585c4d3e 100644
> --- a/arch/sh/kernel/syscalls/syscall.tbl
> +++ b/arch/sh/kernel/syscalls/syscall.tbl
> @@ -454,3 +454,4 @@
>  449	common  futex_waitv                     sys_futex_waitv
>  450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	common	cachestat			sys_cachestat
> +452	common	fchmodat2			sys_fchmodat2
> diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
> index faa835f3c54a..4ed06c71c43f 100644
> --- a/arch/sparc/kernel/syscalls/syscall.tbl
> +++ b/arch/sparc/kernel/syscalls/syscall.tbl
> @@ -497,3 +497,4 @@
>  449	common  futex_waitv                     sys_futex_waitv
>  450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	common	cachestat			sys_cachestat
> +452	common	fchmodat2			sys_fchmodat2
> diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
> index bc0a3c941b35..2d0b1bd866ea 100644
> --- a/arch/x86/entry/syscalls/syscall_32.tbl
> +++ b/arch/x86/entry/syscalls/syscall_32.tbl
> @@ -456,3 +456,4 @@
>  449	i386	futex_waitv		sys_futex_waitv
>  450	i386	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	i386	cachestat		sys_cachestat
> +452	i386	fchmodat2		sys_fchmodat2
> diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
> index 227538b0ce80..814768249eae 100644
> --- a/arch/x86/entry/syscalls/syscall_64.tbl
> +++ b/arch/x86/entry/syscalls/syscall_64.tbl
> @@ -373,6 +373,7 @@
>  449	common	futex_waitv		sys_futex_waitv
>  450	common	set_mempolicy_home_node	sys_set_mempolicy_home_node
>  451	common	cachestat		sys_cachestat
> +452	common	fchmodat2		sys_fchmodat2
>  
>  #
>  # Due to a historical design error, certain syscalls are numbered differently
> diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
> index 2b69c3c035b6..fc1a4f3c81d9 100644
> --- a/arch/xtensa/kernel/syscalls/syscall.tbl
> +++ b/arch/xtensa/kernel/syscalls/syscall.tbl
> @@ -422,3 +422,4 @@
>  449	common  futex_waitv                     sys_futex_waitv
>  450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
>  451	common	cachestat			sys_cachestat
> +452	common	fchmodat2			sys_fchmodat2
> diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
> index fd6c1cb585db..abe087c53b4b 100644
> --- a/include/uapi/asm-generic/unistd.h
> +++ b/include/uapi/asm-generic/unistd.h
> @@ -820,8 +820,11 @@ __SYSCALL(__NR_set_mempolicy_home_node, sys_set_mempolicy_home_node)
>  #define __NR_cachestat 451
>  __SYSCALL(__NR_cachestat, sys_cachestat)
>  
> +#define __NR_fchmodat2 452
> +__SYSCALL(__NR_fchmodat2, sys_fchmodat2)
> +
>  #undef __NR_syscalls
> -#define __NR_syscalls 452
> +#define __NR_syscalls 453
>  
>  /*
>   * 32 bit systems traditionally used different
> -- 
> 2.33.8
> 

-- 
Aleksa Sarai
Senior Software Engineer (Containers)
SUSE Linux GmbH
<https://www.cyphar.com/>

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