linux-kernel - Re: [PATCH] blackfin: Wire up missing syscalls

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Message-ID: <20150412184659.GA1679@kroah.com>
Date:	Sun, 12 Apr 2015 20:46:59 +0200
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Chen Gang <xili_gchen_5257@...mail.com>
Cc:	realmz6@...il.com,
	Richard Weinberger <richard.weinberger@...il.com>,
	"adi-buildroot-devel@...ts.sourceforge.net" 
	<adi-buildroot-devel@...ts.sourceforge.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] blackfin: Wire up missing syscalls

On Sun, Apr 12, 2015 at 03:44:37PM +0800, Chen Gang wrote:
> The related syscalls are below which may cause samples/kdbus building
> break in next-20150401 tree, the related information and error:
> 
>     CALL    scripts/checksyscalls.sh
>   <stdin>:1223:2: warning: #warning syscall kcmp not implemented [-Wcpp]
>   <stdin>:1226:2: warning: #warning syscall finit_module not implemented [-Wcpp]
>   <stdin>:1229:2: warning: #warning syscall sched_setattr not implemented [-Wcpp]
>   <stdin>:1232:2: warning: #warning syscall sched_getattr not implemented [-Wcpp]
>   <stdin>:1235:2: warning: #warning syscall renameat2 not implemented [-Wcpp]
>   <stdin>:1238:2: warning: #warning syscall seccomp not implemented [-Wcpp]
>   <stdin>:1241:2: warning: #warning syscall getrandom not implemented [-Wcpp]
>   <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp]
>   <stdin>:1247:2: warning: #warning syscall bpf not implemented [-Wcpp]
>   <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp]
>   [...]
>     HOSTCC  samples/kdbus/kdbus-workers
>   samples/kdbus/kdbus-workers.c: In function ‘prime_new’:
>   samples/kdbus/kdbus-workers.c:930:18: error: ‘__NR_memfd_create’ undeclared (first use in this function)
>     p->fd = syscall(__NR_memfd_create, "prime-area", MFD_CLOEXEC);
>                     ^
>   samples/kdbus/kdbus-workers.c:930:18: note: each undeclared identifier is reported only once for each function it appears in
> 
> Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
> ---
>  arch/blackfin/include/uapi/asm/unistd.h | 12 +++++++++++-
>  arch/blackfin/mach-common/entry.S       | 10 ++++++++++
>  2 files changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/blackfin/include/uapi/asm/unistd.h b/arch/blackfin/include/uapi/asm/unistd.h
> index a451164..0cb9078 100644
> --- a/arch/blackfin/include/uapi/asm/unistd.h
> +++ b/arch/blackfin/include/uapi/asm/unistd.h
> @@ -401,8 +401,18 @@
>  #define __NR_sendmmsg		380
>  #define __NR_process_vm_readv	381
>  #define __NR_process_vm_writev	382
> +#define __NR_kcmp		383
> +#define __NR_finit_module	384
> +#define __NR_sched_setattr	385
> +#define __NR_sched_getattr	386
> +#define __NR_renameat2		387
> +#define __NR_seccomp		388
> +#define __NR_getrandom		389
> +#define __NR_memfd_create	390
> +#define __NR_bpf		391
> +#define __NR_execveat		392
>  
> -#define __NR_syscall		383
> +#define __NR_syscall		393  /* For internal using, not implemented */
>  #define NR_syscalls		__NR_syscall
>  
>  /* Old optional stuff no one actually uses */
> diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
> index 86b5a09..5b6c4aa 100644
> --- a/arch/blackfin/mach-common/entry.S
> +++ b/arch/blackfin/mach-common/entry.S
> @@ -1694,6 +1694,16 @@ ENTRY(_sys_call_table)
>  	.long _sys_sendmmsg		/* 380 */
>  	.long _sys_process_vm_readv
>  	.long _sys_process_vm_writev
> +        .long _sys_kcmp
> +        .long _sys_finit_module
> +        .long _sys_sched_setattr	/* 385 */
> +        .long _sys_sched_getattr
> +        .long _sys_renameat2
> +        .long _sys_seccomp
> +        .long _sys_getrandom
> +        .long _sys_memfd_create		/* 390 */
> +        .long _sys_bpf
> +        .long _sys_execveat

You used spaces here, where tabs were used previously :(
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