Hello,
On Mon, 26 Dec 2016 02:31:08 -0800, Guenter Roeck wrote:
> Including linux/uaccess.h from assembler files in arm64 builds results
> in the following build errors.
>
> In file included from arm64/include/asm/asm-offsets.h:1:0,
> from arch/arm64/include/asm/assembler.h:26,
> from arch/arm64/include/asm/alternative.h:68,
> from arch/arm64/kernel/entry.S
>
> include/linux/sched/prio.h: Assembler messages:
> include/linux/sched/prio.h:47: Error:
> unknown mnemonic `static' --
> `static inline long nice_to_rlimit(long nice)'
> build/include/linux/sched/prio.h:48: Error:
> junk at end of line, first unrecognized character is `{'
>
> [and many more]
>
> If asm/uaccess.h is not included, many of the affected files fail to build
> with errors such as the following.
>
> arch/arm64/lib/copy_to_user.S: Assembler messages:
> arch/arm64/lib/copy_to_user.S:66: Error:
> unknown mnemonic `uaccess_enable_not_uao' --
> `uaccess_enable_not_uao x3,x4'
> arch/arm64/lib/copy_template.S:71: Error:
> unknown mnemonic `uao_user_alternative' --
> `uao_user_alternative 9998f,strb,st trb,tmp1w,dst,#1'
>
> Either drop the include if unnecessary or, if needed, replace with
> asm/uaccess.h.
>
> Fixes: 7c0f6ba682b9 ("Replace <asm/uaccess.h> with <linux/uaccess.h>
> globally")
> Cc: Linus Torvalds <torva...@linux-foundation.org>
> Cc: Al Viro <v...@zeniv.linux.org.uk>
> Signed-off-by: Guenter Roeck <li...@roeck-us.net>
Tested-by: Thomas Petazzoni <thomas.petazz...@free-electrons.com>
(fixes the arm64 build, result boot tested on real HW)
Thanks,
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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