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Message-ID: <20250919101727.16152-1-farbere@amazon.com>
Date: Fri, 19 Sep 2025 10:17:00 +0000
From: Eliav Farber <farbere@...zon.com>
To: <linux@...linux.org.uk>, <jdike@...toit.com>, <richard@....at>,
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CC: <jonnyc@...zon.com>
Subject: [PATCH 00/27 5.10.y] Backport minmax.h updates from v6.17-rc6
This series includes a total of 27 patches, to align minmax.h of
v5.15.y with v6.17-rc6.
The set consists of 24 commits that directly update minmax.h:
1) 92d23c6e9415 ("overflow, tracing: Define the is_signed_type() macro
once")
2) 5efcecd9a3b1 ("minmax: sanity check constant bounds when clamping")
3) 2122e2a4efc2 ("minmax: clamp more efficiently by avoiding extra
comparison")
4) f9bff0e31881 ("minmax: add in_range() macro")
5) c952c748c7a9 ("minmax: Introduce {min,max}_array()")
6) 5e57418a2031 ("minmax: deduplicate __unconst_integer_typeof()")
7) f6e9d38f8eb0 ("minmax: fix header inclusions")
8) d03eba99f5bf ("minmax: allow min()/max()/clamp() if the arguments
have the same signedness.")
9) f4b84b2ff851 ("minmax: fix indentation of __cmp_once() and
__clamp_once()")
10) 4ead534fba42 ("minmax: allow comparisons of 'int' against 'unsigned
char/short'")
11) 867046cc7027 ("minmax: relax check to allow comparison between
unsigned arguments and signed constants")
12) 3a7e02c040b1 ("minmax: avoid overly complicated constant
expressions in VM code")
14) 017fa3e89187 ("minmax: simplify and clarify min_t()/max_t()
implementation")
15) 1a251f52cfdc ("minmax: make generic MIN() and MAX() macros
available everywhere")
18) dc1c8034e31b ("minmax: simplify min()/max()/clamp()
implementation")
19) 22f546873149 ("minmax: improve macro expansion and type
checking")
20) 21b136cc63d2 ("minmax: fix up min3() and max3() too")
21) 71ee9b16251e ("minmax.h: add whitespace around operators and after
commas")
22) 10666e992048 ("minmax.h: update some comments")
23) b280bb27a9f7 ("minmax.h: reduce the #define expansion of min(),
max() and clamp()")
24) a5743f32baec ("minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi
test in clamp()")
25) c3939872ee4a ("minmax.h: move all the clamp() definitions after the
min/max() ones")
26) 495bba17cdf9 ("minmax.h: simplify the variants of clamp()")
27) 2b97aaf74ed5 ("minmax.h: remove some #defines that are only
expanded once")
2 prerequisite commits that adjust users of MIN and MAX macros (to
prevent compilation issues):
13) 4477b39c32fd ("minmax: add a few more MIN_T/MAX_T users")
17) cb04e8b1d2f2 ("minmax: don't use max() in situations that want a C
constant expression")
1 additional commit introduced to resolve a build failures during the
backport:
16) lib: zstd: drop local MIN/MAX macros in favor of generic ones
The primary motivation is to bring in commit (8).
In mainline, this change allows min()/max()/clamp() to accept mixed
argument types when both share the same signedness.
Backported patches to v5.10.y that use such forms trigger compiler
warnings, which in turn cause build failures when -Werror is enabled.
Originaly I aligned 5.10.y to 5.15.y, but David Laight commented that I
need to pick up the later changes (from Linus) as well.
Andy Shevchenko (2):
minmax: deduplicate __unconst_integer_typeof()
minmax: fix header inclusions
Bart Van Assche (1):
overflow, tracing: Define the is_signed_type() macro once
David Laight (11):
minmax: allow min()/max()/clamp() if the arguments have the same
signedness.
minmax: fix indentation of __cmp_once() and __clamp_once()
minmax: allow comparisons of 'int' against 'unsigned char/short'
minmax: relax check to allow comparison between unsigned arguments and
signed constants
minmax.h: add whitespace around operators and after commas
minmax.h: update some comments
minmax.h: reduce the #define expansion of min(), max() and clamp()
minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp()
minmax.h: move all the clamp() definitions after the min/max() ones
minmax.h: simplify the variants of clamp()
minmax.h: remove some #defines that are only expanded once
Eliav Farber (1):
lib: zstd: drop local MIN/MAX macros in favor of generic ones
Herve Codina (1):
minmax: Introduce {min,max}_array()
Jason A. Donenfeld (2):
minmax: sanity check constant bounds when clamping
minmax: clamp more efficiently by avoiding extra comparison
Linus Torvalds (8):
minmax: avoid overly complicated constant expressions in VM code
minmax: add a few more MIN_T/MAX_T users
minmax: simplify and clarify min_t()/max_t() implementation
minmax: make generic MIN() and MAX() macros available everywhere
minmax: don't use max() in situations that want a C constant
expression
minmax: simplify min()/max()/clamp() implementation
minmax: improve macro expansion and type checking
minmax: fix up min3() and max3() too
Matthew Wilcox (Oracle) (1):
minmax: add in_range() macro
arch/arm/mm/pageattr.c | 6 +-
arch/um/drivers/mconsole_user.c | 2 +
arch/x86/mm/pgtable.c | 2 +-
drivers/edac/sb_edac.c | 4 +-
drivers/edac/skx_common.h | 1 -
.../drm/amd/display/modules/hdcp/hdcp_ddc.c | 2 +
.../drm/amd/pm/powerplay/hwmgr/ppevvmath.h | 14 +-
.../drm/arm/display/include/malidp_utils.h | 2 +-
.../display/komeda/komeda_pipeline_state.c | 24 +-
drivers/gpu/drm/drm_color_mgmt.c | 2 +-
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 -
drivers/gpu/drm/radeon/evergreen_cs.c | 2 +
drivers/hwmon/adt7475.c | 24 +-
drivers/input/touchscreen/cyttsp4_core.c | 2 +-
drivers/md/dm-integrity.c | 2 +-
drivers/media/dvb-frontends/stv0367_priv.h | 3 +
.../net/ethernet/chelsio/cxgb3/cxgb3_main.c | 18 +-
.../net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
drivers/net/fjes/fjes_main.c | 4 +-
drivers/nfc/pn544/i2c.c | 2 -
drivers/platform/x86/sony-laptop.c | 1 -
drivers/scsi/isci/init.c | 6 +-
.../pci/hive_isp_css_include/math_support.h | 5 -
fs/btrfs/misc.h | 2 -
fs/btrfs/tree-checker.c | 2 +-
fs/ext2/balloc.c | 2 -
fs/ext4/ext4.h | 2 -
fs/ufs/util.h | 6 -
include/linux/compiler.h | 15 +
include/linux/minmax.h | 267 ++++++++++++++----
include/linux/overflow.h | 1 -
include/linux/trace_events.h | 2 -
kernel/trace/preemptirq_delay_test.c | 2 -
lib/btree.c | 1 -
lib/decompress_unlzma.c | 2 +
lib/logic_pio.c | 3 -
lib/vsprintf.c | 2 +-
lib/zstd/zstd_internal.h | 2 -
mm/zsmalloc.c | 1 -
net/ipv4/proc.c | 2 +-
net/ipv6/proc.c | 2 +-
net/netfilter/nf_nat_core.c | 6 +-
net/tipc/core.h | 2 +-
net/tipc/link.c | 10 +-
44 files changed, 306 insertions(+), 164 deletions(-)
--
2.47.3
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