Backport patches for DAMON merge regions fix

Commit 310d6c15e910 ("mm/damon/core: merge regions aggressively when max_nr_regions") causes a build warning [1] on 6.1.y. That was due to unnecessarily strict type check from max().

Fix the warning by backporting a minmax.h upstream commit that made the type check less strict for unnecessary case, and upstream commits that it depends on.

Note that all patches except the third one ("minmax: fix header inclusions") are clean cherry-picks of upstream commit. For the third one, a minor conflict fix was needed.

[1] https://lore.kernel.org/2024071519-janitor-robe-779f@gregkh

Andy Shevchenko (1):
minmax: fix header inclusions

David Laight (3):
minmax: allow min()/max()/clamp() if the arguments have the same
signedness.
minmax: allow comparisons of 'int' against 'unsigned char/short'
minmax: relax check to allow comparison between unsigned arguments and
signed constants

Jason A. Donenfeld (2):
minmax: sanity check constant bounds when clamping
minmax: clamp more efficiently by avoiding extra comparison

SeongJae Park (1):
mm/damon/core: merge regions aggressively when max_nr_regions is unmet

 include/linux/minmax.h | 89 ++++++++++++++++++++++++++++++------------
 mm/damon/core.c        | 21 +++++++++-
 2 files changed, 83 insertions(+), 27 deletions(-)

base-commit: 291e563ecab1ea89c70172ecf0d6bff7b725d3cb

2.39.2