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| author | Josh Poimboeuf <[email protected]> | 2018-02-21 02:42:14 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2018-02-21 15:54:07 +0000 |
| commit | 0ca7d5baa1787e5f2a7abd6bfca3303b1bbb48ac (patch) | |
| tree | 866043b4ad57ddfb6fe60eef21ea1b0381e9f36e /lib/string_helpers.c | |
| parent | extable: Make init_kernel_text() global (diff) | |
| download | kernel-0ca7d5baa1787e5f2a7abd6bfca3303b1bbb48ac.tar.gz kernel-0ca7d5baa1787e5f2a7abd6bfca3303b1bbb48ac.zip | |
x86/entry/64: Simplify ENCODE_FRAME_POINTER
On 64-bit, the stack pointer is always aligned on interrupt, so instead
of setting the LSB of the pt_regs address, we can just add 1 to it.
Suggested-by: Linus Torvalds <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Cc: Andrew Lutomirski <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dominik Brodowski <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/20180221024214.lhl5jfgw33c4vz3m@treble
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions