linux-kernel - Re: [RFC] arm: Add generic smc wrapper

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Message-ID: <201510021338.iKkCgj7c%fengguang.wu@intel.com>
Date:	Fri, 2 Oct 2015 13:13:24 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Lars Persson <lars.persson@...s.com>
Cc:	kbuild-all@...org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, Lars Persson <larper@...s.com>
Subject: Re: [RFC] arm: Add generic smc wrapper

Hi Lars,

[auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore]

config: arm-rpc_defconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All error/warnings (new ones prefixed by >>):

   arch/arm/kernel/smc-call.S: Assembler messages:
>> arch/arm/kernel/smc-call.S:21: Error: selected processor does not support ARM mode `bx lr'

vim +21 arch/arm/kernel/smc-call.S

    15	
    16	#include <asm/opcodes-sec.h>
    17	
    18	/* int invoke_smc(u32 function_id, u32 arg0, u32 arg1, u32 arg2) */
    19	ENTRY(invoke_smc)
    20		__SMC(0)
  > 21		bx	lr
    22	ENDPROC(invoke_smc)

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Download attachment ".config.gz" of type "application/octet-stream" (12414 bytes)