arm64: entry: move enter_from_user_mode to entry-common.c

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In later patches we'll want to extend enter_from_user_mode() and add a
corresponding exit_to_user_mode(). As these will be common for all
entries/exits from userspace, it'd be better for these to live in
entry-common.c with the rest of the entry logic.

This patch moves enter_from_user_mode() into entry-common.c. As with
other functions in entry-common.c it is marked as noinstr (which
prevents all instrumentation, tracing, and kprobes) but there are no
other functional changes.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201130115950.22492-5-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>

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Mark Rutland 2020-11-30 11:59:43 +00:00 • committed by Will Deacon

parent da19267648

commit 2f911d494f

2 changed files with 6 additions and 7 deletions

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6

arch/arm64/kernel/entry-common.c

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7

arch/arm64/kernel/traps.c

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