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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-08-01 19:54:26 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-08-01 19:54:26 +0100 |
| commit | c70fbb01b11cecfa13d9e746f462617d3ac0e38c (patch) | |
| tree | 1946cf555bee185ac81dc0127c6e067040681469 /arch/arm/include/asm/uaccess.h | |
| parent | 4b2974fa6a4a32d390a50e23381a2270a2e0d444 (diff) | |
| parent | 83de911cf897a4317147dd9cb379378c2c4abf4c (diff) | |
Merge tag 'nommu-for-rmk' of git://git.pengutronix.de/git/ukl/linux into devel-stable
Two different fixes for the same problem making some ARM nommu configurations
not boot since 3.6-rc1. The problem is that user_addr_max returned the biggest
available RAM address which makes some copy_from_user variants fail to read
from XIP memory.
Even in the presence of one of the two fixes the other still makes sense, so
both patches are included here.
This problem was the last one preventing efm32 boot to a prompt with mainline.
Diffstat (limited to 'arch/arm/include/asm/uaccess.h')
| -rw-r--r-- | arch/arm/include/asm/uaccess.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 75d95799b6e..fd42da46828 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -224,7 +224,7 @@ static inline void set_fs(mm_segment_t fs) #define access_ok(type,addr,size) (__range_ok(addr,size) == 0) #define user_addr_max() \ - (segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL) + (segment_eq(get_fs(), KERNEL_DS) ? ~0UL : get_fs()) /* * The "__xxx" versions of the user access functions do not verify the |