[PATCH v4 0/1] alpha: Add support for HAVE_ARCH_JUMP_LABEL

[Magnus Lindholm <linmag7@gmail.com>]

Apply-time cleanups following Matt Turner's review of v3:

- Move jump_label.o beside the other object entries near the top of
  arch/alpha/kernel/Makefile, outside the GENERIC block.
- Include linux/cacheflush.h instead of asm/cacheflush.h.
- Regenerate the cover-letter diffstat and retain Matt's Reviewed-by.

The jump-label implementation is otherwise unchanged from v3.

V3 was cross-built with W=1 and boot-tested on a three-CPU AlphaServer
ES40 with CMA v2. The static-key boot selftest and 30 module load/unload
cycles passed, including cross-module keys. This revised export has
not been rebuilt or boot-tested separately.

Batching I-cache synchronization and relative jump-table entries remain
follow-ups. The early jump_label_init() call needed before Alpha's new
early-parameter parsing is carried by the separate CMA v3 series.

This patch applies to for-next at 0b4cadbe7c39.

Magnus Lindholm (1):
  alpha: Add support for HAVE_ARCH_JUMP_LABEL

 .../core/jump-labels/arch-support.txt         |  2 +-
 arch/alpha/Kconfig                            |  1 +
 arch/alpha/include/asm/jump_label.h           | 65 +++++++++++++++
 arch/alpha/kernel/Makefile                    |  1 +
 arch/alpha/kernel/jump_label.c                | 79 +++++++++++++++++++
 5 files changed, 147 insertions(+), 1 deletion(-)
 create mode 100644 arch/alpha/include/asm/jump_label.h
 create mode 100644 arch/alpha/kernel/jump_label.c


base-commit: 0b4cadbe7c39d830dec35c4a2655483de0dae568
-- 
2.43.0