linux-kernel - Re: [PATCH v5 4/7] arm64: introduce aarch64_insn_gen_{nop|branch

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Message-ID: <20131106114530.76b63b05@gandalf.local.home>
Date:	Wed, 6 Nov 2013 11:45:30 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Will Deacon <will.deacon@....com>
Cc:	Jiang Liu <liuj97@...il.com>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Sandeepa Prabhu <sandeepa.prabhu@...aro.org>,
	Jiang Liu <jiang.liu@...wei.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 4/7] arm64: introduce
 aarch64_insn_gen_{nop|branch_imm}() helper functions

On Wed, 30 Oct 2013 00:48:40 +0000
Will Deacon <will.deacon@....com> wrote:


> > +}
> > +
> > +static __always_inline u32 aarch64_insn_gen_nop(void)
> > +{
> > +	return aarch64_insn_gen_hint(AARCH64_INSN_HINT_NOP);
> > +}
> 
> Either use plain old `inline' or write these as preprocessor macros.
> 

I'm curious to why you say that? Preprocessor macros are rather ugly,
and in x86 we use "__always_inline" quite liberally.

-- Steve
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