linux-kernel - Re: Build regressions/improvements in v4.1-rc6

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Message-ID: <20150602145822.GA1443@roeck-us.net>
Date:	Tue, 2 Jun 2015 07:58:22 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Build regressions/improvements in v4.1-rc6

On Mon, Jun 01, 2015 at 12:09:52PM +0200, Geert Uytterhoeven wrote:
> Below is the list of build error/warning regressions/improvements in
> v4.1-rc6[1] compared to v4.0[2].
> 
[ ... ]
> 
> *** ERRORS ***
> 
[ ... ]

>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_read16' [-Werror=implicit-function-declaration]:  => 121:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_read32' [-Werror=implicit-function-declaration]:  => 129:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_read8' [-Werror=implicit-function-declaration]:  => 113:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_write16' [-Werror=implicit-function-declaration]:  => 155:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_write32' [-Werror=implicit-function-declaration]:  => 163:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_write8' [-Werror=implicit-function-declaration]:  => 147:2

A patch to address this problem has been available for some time [1].

Also:

Building score:defconfig ... failed
--------------

FATAL: The relocation at __ex_table+0x91c references
section "__ex_table" which is not executable, IOW
the kernel will fault if it ever tries to
jump to it.  Something is seriously wrong
and should be fixed.

A pull request to address this problem was sent to Linus last week [2].

Guenter

---
[1] https://lkml.org/lkml/2015/5/1/158
[2] http://www.spinics.net/lists/kernel/msg2003350.html
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