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SubjectRe: [PATCH v2] ipc.2: Fix prototype parameter types
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Hi Alex,

On 2/7/21 1:36 PM, Alejandro Colomar wrote:
> The types for some of the parameters are incorrect
> (different than the kernel). Fix them.
> Below are shown the types that the kernel uses.

Thanks. Patch applied.

Cheers,

Michael

> ......
>
> .../linux$ grep_syscall ipc
> ipc/syscall.c:110:
> SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second,
> unsigned long, third, void __user *, ptr, long, fifth)
> ipc/syscall.c:205:
> COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
> u32, third, compat_uptr_t, ptr, u32, fifth)
> include/linux/compat.h:874:
> asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
> include/linux/syscalls.h:1221:
> asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
> unsigned long third, void __user *ptr, long fifth);
> .../linux$
>
> function grep_syscall()
> {
> if ! [ -v 1 ]; then
> >&2 echo "Usage: ${FUNCNAME[0]} <syscall>";
> return ${EX_USAGE};
> fi
>
> find * -type f \
> |grep '\.c$' \
> |sort -V \
> |xargs pcregrep -Mn "(?s)^\w*SYSCALL_DEFINE.\(${1},.*?\)" \
> |sed -E 's/^[^:]+:[0-9]+:/&\n/';
>
> find * -type f \
> |grep '\.[ch]$' \
> |sort -V \
> |xargs pcregrep -Mn "(?s)^asmlinkage\s+[\w\s]+\**sys_${1}\s*\(.*?\)" \
> |sed -E 's/^[^:]+:[0-9]+:/&\n/';
> }
>
> Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
> ---
> man2/ipc.2 | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/man2/ipc.2 b/man2/ipc.2
> index 6589ffae6..a36e895a2 100644
> --- a/man2/ipc.2
> +++ b/man2/ipc.2
> @@ -27,9 +27,8 @@
> ipc \- System V IPC system calls
> .SH SYNOPSIS
> .nf
> -.BI "int ipc(unsigned int " call ", int " first ", int " second \
> -", int " third ,
> -.BI " void *" ptr ", long " fifth );
> +.BI "int ipc(unsigned int " call ", int " first ", unsigned long " second ,
> +.BI " unsigned long " third ", void *" ptr ", long " fifth );
> .fi
> .PP
> .IR Note :
>


--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/

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