linux-kernel - Re: [PATCHv4 2/6] x86&x86-64 support for sys

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Date:	Tue, 20 Nov 2007 10:29:49 +0100
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Ulrich Drepper <drepper@...hat.com>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	mingo@...e.hu, tglx@...utronix.de, torvalds@...ux-foundation.org
Subject: Re: [PATCHv4 2/6] x86&x86-64 support for sys_indirect

> +#define INDIRECT_SYSCALL(regs) (regs)->rax
> +#define INDIRECT_SYSCALL32(regs) (regs)->eax
> +
> +#define CALL_INDIRECT(regs) \
> +  ({ extern long (*sys_call_table[]) (__u64, __u64, __u64, __u64, __u64, __u64); \
> +     sys_call_table[INDIRECT_SYSCALL(regs)] ((regs)->rdi, (regs)->rsi, \
> +					     (regs)->rdx, (regs)->r10, \
> +					     (regs)->r8, (regs)->r9); \
> +     })
> +

All these macros could be functions, or? Would give us some type checking
and avoids the capital letters.
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