diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2016-05-13 11:40:20 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2016-07-07 16:01:01 +0100 |
| commit | e6978e4bf181fb3b5f8cb6f71b4fe30fbf1b655c (patch) | |
| tree | dddb20dbc9a5e594e406e71ed598039b33e0a4be /arch/arm/include | |
| parent | dd665be0e243873343a28e18f9f345927b658daf (diff) | |
| download | blackbird-op-linux-e6978e4bf181fb3b5f8cb6f71b4fe30fbf1b655c.tar.gz blackbird-op-linux-e6978e4bf181fb3b5f8cb6f71b4fe30fbf1b655c.zip | |
ARM: save and reset the address limit when entering an exception
When we enter an exception, the current address limit should not apply
to the exception context: if the exception context wishes to access
kernel space via the user accessors (eg, perf code), it must explicitly
request such access.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/ptrace.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index 0ef0093800f2..e9c9a117bd25 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -22,7 +22,7 @@ struct pt_regs { struct svc_pt_regs { struct pt_regs regs; u32 dacr; - u32 unused; + u32 addr_limit; }; #define to_svc_pt_regs(r) container_of(r, struct svc_pt_regs, regs) |
