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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2020-05-03 15:03:54 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2020-05-03 19:30:24 +0300 |
| commit | 747ffc2fcf969eff9309d7f2d1d61cb8b9e1bb40 (patch) | |
| tree | d269c1a6954dd64d8975ae8e4062d6c02c9e6041 /arch/arm/kernel/entry-armv.S | |
| parent | 7111951b8d4973bda27ff663f2cf18b663d15b48 (diff) | |
| download | linux-747ffc2fcf969eff9309d7f2d1d61cb8b9e1bb40.tar.xz | |
ARM: uaccess: consolidate uaccess asm to asm/uaccess-asm.h
Consolidate the user access assembly code to asm/uaccess-asm.h. This
moves the csdb, check_uaccess, uaccess_mask_range_ptr, uaccess_enable,
uaccess_disable, uaccess_save, uaccess_restore macros, and creates two
new ones for exception entry and exit - uaccess_entry and uaccess_exit.
This makes the uaccess_save and uaccess_restore macros private to
asm/uaccess-asm.h.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/kernel/entry-armv.S')
| -rw-r--r-- | arch/arm/kernel/entry-armv.S | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 77f54830554c..55a47df04773 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -27,6 +27,7 @@ #include <asm/unistd.h> #include <asm/tls.h> #include <asm/system_info.h> +#include <asm/uaccess-asm.h> #include "entry-header.S" #include <asm/entry-macro-multi.S> @@ -179,15 +180,7 @@ ENDPROC(__und_invalid) stmia r7, {r2 - r6} get_thread_info tsk - ldr r0, [tsk, #TI_ADDR_LIMIT] - mov r1, #TASK_SIZE - str r1, [tsk, #TI_ADDR_LIMIT] - str r0, [sp, #SVC_ADDR_LIMIT] - - uaccess_save r0 - .if \uaccess - uaccess_disable r0 - .endif + uaccess_entry tsk, r0, r1, r2, \uaccess .if \trace #ifdef CONFIG_TRACE_IRQFLAGS |