diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2021-08-11 08:30:26 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2021-08-20 11:39:27 +0100 |
| commit | 8ac6f5d7f84bf362e67591708bcb9788cdc42c50 (patch) | |
| tree | b550f0848c7bf5a43991f70ad71937b560d49dc5 /arch/arm/include/asm/ptrace.h | |
| parent | 2df4c9a741a0b5e2883cc356c1b724d1f739fb55 (diff) | |
ARM: 9113/1: uaccess: remove set_fs() implementation
There are no remaining callers of set_fs(), so just remove it
along with all associated code that operates on
thread_info->addr_limit.
There are still further optimizations that can be done:
- In get_user(), the address check could be moved entirely
into the out of line code, rather than passing a constant
as an argument,
- I assume the DACR handling can be simplified as we now
only change it during user access when CONFIG_CPU_SW_DOMAIN_PAN
is set, but not during set_fs().
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/ptrace.h')
| -rw-r--r-- | arch/arm/include/asm/ptrace.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index 91d6b7856be4..93051e2f402c 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -19,7 +19,6 @@ struct pt_regs { struct svc_pt_regs { struct pt_regs regs; u32 dacr; - u32 addr_limit; }; #define to_svc_pt_regs(r) container_of(r, struct svc_pt_regs, regs) |