From: Eliav Farber <farbere@amazon•com>
To: <gregkh@linuxfoundation•org>, <stable@vger•kernel.org>,
<linux@armlinux•org.uk>, <jdike@addtoit•com>, <richard@nod•at>,
<anton.ivanov@cambridgegreys•com>, <dave.hansen@linux•intel.com>,
<luto@kernel•org>, <peterz@infradead•org>, <tglx@linutronix•de>,
<mingo@redhat•com>, <bp@alien8•de>, <x86@kernel•org>,
<hpa@zytor•com>, <tony.luck@intel•com>, <qiuxu.zhuo@intel•com>,
<mchehab@kernel•org>, <james.morse@arm•com>, <rric@kernel•org>,
<harry.wentland@amd•com>, <sunpeng.li@amd•com>,
<alexander.deucher@amd•com>, <christian.koenig@amd•com>,
<airlied@linux•ie>, <daniel@ffwll•ch>, <evan.quan@amd•com>,
<james.qian.wang@arm•com>, <liviu.dudau@arm•com>,
<mihail.atanassov@arm•com>, <brian.starkey@arm•com>,
<maarten.lankhorst@linux•intel.com>, <mripard@kernel•org>,
<tzimmermann@suse•de>, <robdclark@gmail•com>, <sean@poorly•run>,
<jdelvare@suse•com>, <linux@roeck-us•net>, <fery@cypress•com>,
<dmitry.torokhov@gmail•com>, <agk@redhat•com>,
<snitzer@redhat•com>, <dm-devel@redhat•com>, <rajur@chelsio•com>,
<davem@davemloft•net>, <kuba@kernel•org>,
<peppe.cavallaro@st•com>, <alexandre.torgue@st•com>,
<joabreu@synopsys•com>, <mcoquelin.stm32@gmail•com>,
<malattia@linux•it>, <hdegoede@redhat•com>,
<mgross@linux•intel.com>, <intel-linux-scu@intel•com>,
<artur.paszkiewicz@intel•com>, <jejb@linux•ibm.com>,
<martin.petersen@oracle•com>, <sakari.ailus@linux•intel.com>,
<clm@fb•com>, <josef@toxicpanda•com>, <dsterba@suse•com>,
<xiang@kernel•org>, <chao@kernel•org>, <jack@suse•com>,
<tytso@mit•edu>, <adilger.kernel@dilger•ca>, <dushistov@mail•ru>,
<luc.vanoostenryck@gmail•com>, <rostedt@goodmis•org>,
<pmladek@suse•com>, <sergey.senozhatsky@gmail•com>,
<andriy.shevchenko@linux•intel.com>, <linux@rasmusvillemoes•dk>,
<minchan@kernel•org>, <ngupta@vflare•org>,
<akpm@linux-foundation•org>, <kuznet@ms2•inr.ac.ru>,
<yoshfuji@linux-ipv6•org>, <pablo@netfilter•org>,
<kadlec@netfilter•org>, <fw@strlen•de>, <jmaloy@redhat•com>,
<ying.xue@windriver•com>, <willy@infradead•org>,
<farbere@amazon•com>, <sashal@kernel•org>,
<ruanjinjie@huawei•com>, <David.Laight@ACULAB•COM>,
<herve.codina@bootlin•com>, <Jason@zx2c4•com>,
<keescook@chromium•org>, <kbusch@kernel•org>, <nathan@kernel•org>,
<bvanassche@acm•org>, <ndesaulniers@google•com>,
<linux-arm-kernel@lists•infradead.org>,
<linux-kernel@vger•kernel.org>, <linux-um@lists•infradead.org>,
<linux-edac@vger•kernel.org>, <amd-gfx@lists•freedesktop.org>,
<dri-devel@lists•freedesktop.org>,
<linux-arm-msm@vger•kernel.org>,
<freedreno@lists•freedesktop.org>, <linux-hwmon@vger•kernel.org>,
<linux-input@vger•kernel.org>, <linux-media@vger•kernel.org>,
<netdev@vger•kernel.org>,
<linux-stm32@st-md-mailman•stormreply.com>,
<platform-driver-x86@vger•kernel.org>,
<linux-scsi@vger•kernel.org>, <linux-staging@lists•linux.dev>,
<linux-btrfs@vger•kernel.org>, <linux-erofs@lists•ozlabs.org>,
<linux-ext4@vger•kernel.org>, <linux-sparse@vger•kernel.org>,
<linux-mm@kvack•org>, <netfilter-devel@vger•kernel.org>,
<coreteam@netfilter•org>, <tipc-discussion@lists•sourceforge.net>
Subject: [PATCH v2 07/27 5.10.y] minmax: deduplicate __unconst_integer_typeof()
Date: Fri, 17 Oct 2025 09:04:59 +0000 [thread overview]
Message-ID: <20251017090519.46992-8-farbere@amazon.com> (raw)
In-Reply-To: <20251017090519.46992-1-farbere@amazon.com>
From: Andy Shevchenko <andriy.shevchenko@linux•intel.com>
[ Upstream commit 5e57418a2031cd5e1863efdf3d7447a16a368172 ]
It appears that compiler_types.h already have an implementation of the
__unconst_integer_typeof() called __unqual_scalar_typeof(). Use it
instead of the copy.
Link: https://lkml.kernel.org/r/20230911154913.4176033-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux•intel.com>
Acked-by: Herve Codina <herve.codina@bootlin•com>
Signed-off-by: Andrew Morton <akpm@linux-foundation•org>
Signed-off-by: Eliav Farber <farbere@amazon•com>
---
include/linux/minmax.h | 26 +++-----------------------
1 file changed, 3 insertions(+), 23 deletions(-)
diff --git a/include/linux/minmax.h b/include/linux/minmax.h
index 0e89c78810f6..c813c1187510 100644
--- a/include/linux/minmax.h
+++ b/include/linux/minmax.h
@@ -2,6 +2,7 @@
#ifndef _LINUX_MINMAX_H
#define _LINUX_MINMAX_H
+#include <linux/compiler_types.h>
#include <linux/const.h>
#include <linux/types.h>
@@ -151,27 +152,6 @@
*/
#define max_t(type, x, y) __careful_cmp((type)(x), (type)(y), >)
-/*
- * Remove a const qualifier from integer types
- * _Generic(foo, type-name: association, ..., default: association) performs a
- * comparison against the foo type (not the qualified type).
- * Do not use the const keyword in the type-name as it will not match the
- * unqualified type of foo.
- */
-#define __unconst_integer_type_cases(type) \
- unsigned type: (unsigned type)0, \
- signed type: (signed type)0
-
-#define __unconst_integer_typeof(x) typeof( \
- _Generic((x), \
- char: (char)0, \
- __unconst_integer_type_cases(char), \
- __unconst_integer_type_cases(short), \
- __unconst_integer_type_cases(int), \
- __unconst_integer_type_cases(long), \
- __unconst_integer_type_cases(long long), \
- default: (x)))
-
/*
* Do not check the array parameter using __must_be_array().
* In the following legit use-case where the "array" passed is a simple pointer,
@@ -186,13 +166,13 @@
* 'int *buff' and 'int buff[N]' types.
*
* The array can be an array of const items.
- * typeof() keeps the const qualifier. Use __unconst_integer_typeof() in order
+ * typeof() keeps the const qualifier. Use __unqual_scalar_typeof() in order
* to discard the const qualifier for the __element variable.
*/
#define __minmax_array(op, array, len) ({ \
typeof(&(array)[0]) __array = (array); \
typeof(len) __len = (len); \
- __unconst_integer_typeof(__array[0]) __element = __array[--__len]; \
+ __unqual_scalar_typeof(__array[0]) __element = __array[--__len];\
while (__len--) \
__element = op(__element, __array[__len]); \
__element; })
--
2.47.3
next prev parent reply other threads:[~2025-10-17 9:07 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-17 9:04 [PATCH v2 00/27 5.10.y] Backport minmax.h updates from v6.17-rc7 Eliav Farber
2025-10-17 9:04 ` [PATCH v2 01/27 5.10.y] overflow, tracing: Define the is_signed_type() macro once Eliav Farber
2025-10-17 11:59 ` Greg KH
2025-10-17 12:16 ` Farber, Eliav
2025-10-17 13:21 ` Greg KH
2025-10-17 9:04 ` [PATCH v2 02/27 5.10.y] btrfs: remove duplicated in_range() macro Eliav Farber
2025-10-17 9:04 ` [PATCH v2 03/27 5.10.y] minmax: sanity check constant bounds when clamping Eliav Farber
2025-10-17 9:04 ` [PATCH v2 04/27 5.10.y] minmax: clamp more efficiently by avoiding extra comparison Eliav Farber
2025-10-17 9:04 ` [PATCH v2 05/27 5.10.y] minmax: add in_range() macro Eliav Farber
2025-10-17 9:04 ` [PATCH v2 06/27 5.10.y] minmax: Introduce {min,max}_array() Eliav Farber
2025-10-17 9:04 ` Eliav Farber [this message]
2025-10-17 9:05 ` [PATCH v2 08/27 5.10.y] minmax: fix header inclusions Eliav Farber
2025-10-17 9:05 ` [PATCH v2 09/27 5.10.y] minmax: allow min()/max()/clamp() if the arguments have the same signedness Eliav Farber
2025-10-17 9:05 ` [PATCH v2 10/27 5.10.y] minmax: fix indentation of __cmp_once() and __clamp_once() Eliav Farber
2025-10-17 9:05 ` [PATCH v2 11/27 5.10.y] minmax: allow comparisons of 'int' against 'unsigned char/short' Eliav Farber
2025-10-17 9:05 ` [PATCH v2 12/27 5.10.y] minmax: relax check to allow comparison between unsigned arguments and signed constants Eliav Farber
2025-10-17 9:05 ` [PATCH v2 13/27 5.10.y] minmax: avoid overly complicated constant expressions in VM code Eliav Farber
2025-10-17 9:05 ` [PATCH v2 14/27 5.10.y] minmax: add a few more MIN_T/MAX_T users Eliav Farber
2025-10-17 9:05 ` [PATCH v2 15/27 5.10.y] minmax: simplify and clarify min_t()/max_t() implementation Eliav Farber
2025-10-17 9:05 ` [PATCH v2 16/27 5.10.y] minmax: make generic MIN() and MAX() macros available everywhere Eliav Farber
2025-10-17 9:05 ` [PATCH v2 17/27 5.10.y] minmax: don't use max() in situations that want a C constant expression Eliav Farber
2025-10-17 9:05 ` [PATCH v2 18/27 5.10.y] minmax: simplify min()/max()/clamp() implementation Eliav Farber
2025-10-17 9:05 ` [PATCH v2 19/27 5.10.y] minmax: improve macro expansion and type checking Eliav Farber
2025-10-17 9:05 ` [PATCH v2 20/27 5.10.y] minmax: fix up min3() and max3() too Eliav Farber
2025-10-17 9:05 ` [PATCH v2 21/27 5.10.y] minmax.h: add whitespace around operators and after commas Eliav Farber
2025-10-17 9:05 ` [PATCH v2 22/27 5.10.y] minmax.h: update some comments Eliav Farber
2025-10-17 9:05 ` [PATCH v2 23/27 5.10.y] minmax.h: reduce the #define expansion of min(), max() and clamp() Eliav Farber
2025-10-17 9:05 ` [PATCH v2 24/27 5.10.y] minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp() Eliav Farber
2025-10-17 9:05 ` [PATCH v2 25/27 5.10.y] minmax.h: move all the clamp() definitions after the min/max() ones Eliav Farber
2025-10-17 9:05 ` [PATCH v2 26/27 5.10.y] minmax.h: simplify the variants of clamp() Eliav Farber
2025-10-17 9:05 ` [PATCH v2 27/27 5.10.y] minmax.h: remove some #defines that are only expanded once Eliav Farber
2025-10-17 15:03 ` [PATCH v2 00/27 5.10.y] Backport minmax.h updates from v6.17-rc7 Greg KH
2025-10-17 16:09 ` Nathan Chancellor
2025-10-19 12:38 ` Greg KH
2025-10-18 20:07 ` Farber, Eliav
2025-10-19 12:37 ` Greg KH
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251017090519.46992-8-farbere@amazon.com \
--to=farbere@amazon$(echo .)com \
--cc=David.Laight@ACULAB$(echo .)COM \
--cc=Jason@zx2c4$(echo .)com \
--cc=adilger.kernel@dilger$(echo .)ca \
--cc=agk@redhat$(echo .)com \
--cc=airlied@linux$(echo .)ie \
--cc=akpm@linux-foundation$(echo .)org \
--cc=alexander.deucher@amd$(echo .)com \
--cc=alexandre.torgue@st$(echo .)com \
--cc=amd-gfx@lists$(echo .)freedesktop.org \
--cc=andriy.shevchenko@linux$(echo .)intel.com \
--cc=anton.ivanov@cambridgegreys$(echo .)com \
--cc=artur.paszkiewicz@intel$(echo .)com \
--cc=bp@alien8$(echo .)de \
--cc=brian.starkey@arm$(echo .)com \
--cc=bvanassche@acm$(echo .)org \
--cc=chao@kernel$(echo .)org \
--cc=christian.koenig@amd$(echo .)com \
--cc=clm@fb$(echo .)com \
--cc=coreteam@netfilter$(echo .)org \
--cc=daniel@ffwll$(echo .)ch \
--cc=dave.hansen@linux$(echo .)intel.com \
--cc=davem@davemloft$(echo .)net \
--cc=dm-devel@redhat$(echo .)com \
--cc=dmitry.torokhov@gmail$(echo .)com \
--cc=dri-devel@lists$(echo .)freedesktop.org \
--cc=dsterba@suse$(echo .)com \
--cc=dushistov@mail$(echo .)ru \
--cc=evan.quan@amd$(echo .)com \
--cc=fery@cypress$(echo .)com \
--cc=freedreno@lists$(echo .)freedesktop.org \
--cc=fw@strlen$(echo .)de \
--cc=gregkh@linuxfoundation$(echo .)org \
--cc=harry.wentland@amd$(echo .)com \
--cc=hdegoede@redhat$(echo .)com \
--cc=herve.codina@bootlin$(echo .)com \
--cc=hpa@zytor$(echo .)com \
--cc=intel-linux-scu@intel$(echo .)com \
--cc=jack@suse$(echo .)com \
--cc=james.morse@arm$(echo .)com \
--cc=james.qian.wang@arm$(echo .)com \
--cc=jdelvare@suse$(echo .)com \
--cc=jdike@addtoit$(echo .)com \
--cc=jejb@linux$(echo .)ibm.com \
--cc=jmaloy@redhat$(echo .)com \
--cc=joabreu@synopsys$(echo .)com \
--cc=josef@toxicpanda$(echo .)com \
--cc=kadlec@netfilter$(echo .)org \
--cc=kbusch@kernel$(echo .)org \
--cc=keescook@chromium$(echo .)org \
--cc=kuba@kernel$(echo .)org \
--cc=kuznet@ms2$(echo .)inr.ac.ru \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
--cc=linux-arm-msm@vger$(echo .)kernel.org \
--cc=linux-btrfs@vger$(echo .)kernel.org \
--cc=linux-edac@vger$(echo .)kernel.org \
--cc=linux-erofs@lists$(echo .)ozlabs.org \
--cc=linux-ext4@vger$(echo .)kernel.org \
--cc=linux-hwmon@vger$(echo .)kernel.org \
--cc=linux-input@vger$(echo .)kernel.org \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=linux-media@vger$(echo .)kernel.org \
--cc=linux-mm@kvack$(echo .)org \
--cc=linux-scsi@vger$(echo .)kernel.org \
--cc=linux-sparse@vger$(echo .)kernel.org \
--cc=linux-staging@lists$(echo .)linux.dev \
--cc=linux-stm32@st-md-mailman$(echo .)stormreply.com \
--cc=linux-um@lists$(echo .)infradead.org \
--cc=linux@armlinux$(echo .)org.uk \
--cc=linux@rasmusvillemoes$(echo .)dk \
--cc=linux@roeck-us$(echo .)net \
--cc=liviu.dudau@arm$(echo .)com \
--cc=luc.vanoostenryck@gmail$(echo .)com \
--cc=luto@kernel$(echo .)org \
--cc=maarten.lankhorst@linux$(echo .)intel.com \
--cc=malattia@linux$(echo .)it \
--cc=martin.petersen@oracle$(echo .)com \
--cc=mchehab@kernel$(echo .)org \
--cc=mcoquelin.stm32@gmail$(echo .)com \
--cc=mgross@linux$(echo .)intel.com \
--cc=mihail.atanassov@arm$(echo .)com \
--cc=minchan@kernel$(echo .)org \
--cc=mingo@redhat$(echo .)com \
--cc=mripard@kernel$(echo .)org \
--cc=nathan@kernel$(echo .)org \
--cc=ndesaulniers@google$(echo .)com \
--cc=netdev@vger$(echo .)kernel.org \
--cc=netfilter-devel@vger$(echo .)kernel.org \
--cc=ngupta@vflare$(echo .)org \
--cc=pablo@netfilter$(echo .)org \
--cc=peppe.cavallaro@st$(echo .)com \
--cc=peterz@infradead$(echo .)org \
--cc=platform-driver-x86@vger$(echo .)kernel.org \
--cc=pmladek@suse$(echo .)com \
--cc=qiuxu.zhuo@intel$(echo .)com \
--cc=rajur@chelsio$(echo .)com \
--cc=richard@nod$(echo .)at \
--cc=robdclark@gmail$(echo .)com \
--cc=rostedt@goodmis$(echo .)org \
--cc=rric@kernel$(echo .)org \
--cc=ruanjinjie@huawei$(echo .)com \
--cc=sakari.ailus@linux$(echo .)intel.com \
--cc=sashal@kernel$(echo .)org \
--cc=sean@poorly$(echo .)run \
--cc=sergey.senozhatsky@gmail$(echo .)com \
--cc=snitzer@redhat$(echo .)com \
--cc=stable@vger$(echo .)kernel.org \
--cc=sunpeng.li@amd$(echo .)com \
--cc=tglx@linutronix$(echo .)de \
--cc=tipc-discussion@lists$(echo .)sourceforge.net \
--cc=tony.luck@intel$(echo .)com \
--cc=tytso@mit$(echo .)edu \
--cc=tzimmermann@suse$(echo .)de \
--cc=willy@infradead$(echo .)org \
--cc=x86@kernel$(echo .)org \
--cc=xiang@kernel$(echo .)org \
--cc=ying.xue@windriver$(echo .)com \
--cc=yoshfuji@linux-ipv6$(echo .)org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox