linux-kernel - linux-next: build failure after merge of the final tree (pwm tree related)

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Date:	Fri, 29 Jun 2012 17:48:26 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Thierry Reding <thierry.reding@...onic-design.de>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Sascha Hauer <s.hauer@...gutronix.de>
Subject: linux-next: build failure after merge of the final tree (pwm tree
 related)

Hi all,

After merging the final tree, today's linux-next build (powerpc
allyesconfig) failed like this:

drivers/mfd/built-in.o: In function `__crc_pwm_free':
(*ABS*+0x15ee601): multiple definition of `__crc_pwm_free'
drivers/mfd/built-in.o: In function `.pwm_free':
(.text+0x187a0): multiple definition of `.pwm_free'
drivers/pwm/built-in.o:(.text+0x740): first defined here
drivers/mfd/built-in.o: In function `__crc_pwm_request':
(*ABS*+0xaee34e3d): multiple definition of `__crc_pwm_request'
drivers/mfd/built-in.o: In function `__crc_pwm_enable':
(*ABS*+0xd83c7949): multiple definition of `__crc_pwm_enable'
drivers/mfd/built-in.o: In function `.pwm_enable':
(.text+0x18800): multiple definition of `.pwm_enable'
drivers/pwm/built-in.o:(.text+0xbc): first defined here
drivers/mfd/built-in.o: In function `.pwm_request':
(.text+0x1858c): multiple definition of `.pwm_request'
drivers/pwm/built-in.o:(.text+0x1178): first defined here
drivers/mfd/built-in.o: In function `pwm_config':
(.opd+0x2970): multiple definition of `pwm_config'
drivers/pwm/built-in.o:(.opd+0x0): first defined here
drivers/mfd/built-in.o: In function `pwm_free':
(.opd+0x29b8): multiple definition of `pwm_free'
drivers/pwm/built-in.o:(.opd+0xf0): first defined here
drivers/mfd/built-in.o: In function `pwm_request':
(.opd+0x2988): multiple definition of `pwm_request'
drivers/pwm/built-in.o:(.opd+0x180): first defined here
drivers/mfd/built-in.o: In function `__crc_pwm_disable':
(*ABS*+0xa4ee3c79): multiple definition of `__crc_pwm_disable'
drivers/mfd/built-in.o: In function `.pwm_disable':
(.text+0x186b8): multiple definition of `.pwm_disable'
drivers/pwm/built-in.o:(.text+0x198): first defined here
drivers/mfd/built-in.o: In function `pwm_enable':
(.opd+0x29d0): multiple definition of `pwm_enable'
drivers/pwm/built-in.o:(.opd+0x18): first defined here
drivers/mfd/built-in.o: In function `.pwm_config':
(.text+0x184a4): multiple definition of `.pwm_config'
drivers/pwm/built-in.o:(.text+0x0): first defined here
drivers/mfd/built-in.o: In function `pwm_disable':
(.opd+0x29a0): multiple definition of `pwm_disable'
drivers/pwm/built-in.o:(.opd+0x30): first defined here
drivers/mfd/built-in.o: In function `__crc_pwm_config':
(*ABS*+0xdeebfb06): multiple definition of `__crc_pwm_config'

Caused by commit 0c2498f16608 ("pwm: Add PWM framework support").  There
are (e.g.) definitions of pwm_free in arch/mips/jz4740/pwm.c,
arch/unicore32/kernel/pwm.c, drivers/mfd/twl6030-pwm.c,
drivers/misc/ab8500-pwm.c and now drivers/pwm/core.c.   Four of these are
EXPORTed.

I have just left this broken for today - please investigate a solution
quickly.
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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