RAS updates for 5.4

Hi Linus,

please pull this branch

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git ras-core-for-linus

to receive the latest meager RAS updates for 5.4:

- Enable processing of action-optional MCEs which have the Overflow bit set
(Tony Luck)

- -Wmissing-prototypes warning fix and a build fix (Valdis Klētnieks)

Thx.

---
The following changes since commit e21a712a9685488f5ce80495b37b9fdbe96c230d:

Linux 5.3-rc3 (2019-08-04 18:40:12 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git ras-core-for-linus

for you to fetch changes up to b6ff24f7b5101101ff897dfdde3f37924e676bc2:

RAS: Build debugfs.o only when enabled in Kconfig (2019-08-08 17:44:02 +0200)

----------------------------------------------------------------
Tony Luck (1):
x86/mce: Don't check for the overflow bit on action optional machine checks

Valdis Kletnieks (2):
RAS: Fix prototype warnings
RAS: Build debugfs.o only when enabled in Kconfig

 arch/x86/kernel/cpu/mce/severity.c | 4 ++--
 drivers/ras/Makefile               | 3 ++-
 drivers/ras/cec.c                  | 1 +
 drivers/ras/debugfs.c              | 2 ++
 4 files changed, 7 insertions(+), 3 deletions(-)

Regards/Gruss,
    Boris.

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