linux-kernel - Re: [RFC][PATCH 6/7] jump_label: Add a new static

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Date:	Mon, 27 Jul 2015 12:51:33 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	linux-kernel@...r.kernel.org, mingo@...nel.org,
	jasonbaron0@...il.com, bp@...en8.de, luto@...capital.net,
	tglx@...utronix.de, rostedt@...dmis.org, will.deacon@....com,
	liuj97@...il.com, rabin@....in, ralf@...ux-mips.org,
	ddaney@...iumnetworks.com, benh@...nel.crashing.org,
	michael@...erman.id.au, davem@...emloft.net
Subject: Re: [RFC][PATCH 6/7] jump_label: Add a new static_key interface

On Mon, Jul 27, 2015 at 12:45:10PM +0200, Peter Zijlstra wrote:
> --- a/arch/s390/include/asm/jump_label.h
> +++ b/arch/s390/include/asm/jump_label.h
> +static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
> +{
> +	asm_volatile_goto("0:	brcl 15, %l[l_yes]\n"
> +		".pushsection __jump_table, \"aw\"\n"
> +		".balign 8\n"
> +		".quad 0b, %l[label], %0\n"
> +		".popsection\n"
> +		: : "X" (&((char *)key)[branch]) : : label);

The above should have been

	asm_volatile_goto("0:	brcl 15,%l[label]\n"

(label instead of l_yes). Just recognized this, sorry..

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