-18

Documentation/dev-tools/checkpatch.rst

reviewed

··· 342 342 343 343 See: https://www.kernel.org/doc/html/latest/RCU/whatisRCU.html#full-list-of-rcu-apis 344 344 345 345 - **DEPRECATED_VARIABLE** 346 346 - EXTRA_{A,C,CPP,LD}FLAGS are deprecated and should be replaced by the new 347 347 - flags added via commit f77bf01425b1 ("kbuild: introduce ccflags-y, 348 348 - asflags-y and ldflags-y"). 349 349 - 350 350 - The following conversion scheme maybe used:: 351 351 - 352 352 - EXTRA_AFLAGS -> asflags-y 353 353 - EXTRA_CFLAGS -> ccflags-y 354 354 - EXTRA_CPPFLAGS -> cppflags-y 355 355 - EXTRA_LDFLAGS -> ldflags-y 356 356 - 357 357 - See: 358 358 - 359 359 - 1. https://lore.kernel.org/lkml/20070930191054.GA15876@uranus.ravnborg.org/ 360 360 - 2. https://lore.kernel.org/lkml/1313384834-24433-12-git-send-email-lacombar@gmail.com/ 361 361 - 3. https://www.kernel.org/doc/html/latest/kbuild/makefiles.html#compilation-flags 362 362 - 363 345 **DEVICE_ATTR_FUNCTIONS** 364 346 The function names used in DEVICE_ATTR is unusual. 365 347 Typically, the store and show functions are used with <attr>_store and

-3

Documentation/kbuild/makefiles.rst

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··· 318 318 These three flags apply only to the kbuild makefile in which they 319 319 are assigned. They are used for all the normal cc, as and ld 320 320 invocations happening during a recursive build. 321 321 - Note: Flags with the same behaviour were previously named: 322 322 - EXTRA_CFLAGS, EXTRA_AFLAGS and EXTRA_LDFLAGS. 323 323 - They are still supported but their usage is deprecated. 324 321 325 322 ccflags-y specifies options for compiling with $(CC). 326 323

-4

scripts/Makefile.build

reviewed

··· 20 20 targets := 21 21 subdir-y := 22 22 subdir-m := 23 23 - EXTRA_AFLAGS := 24 24 - EXTRA_CFLAGS := 25 25 - EXTRA_CPPFLAGS := 26 26 - EXTRA_LDFLAGS := 27 23 asflags-y := 28 24 ccflags-y := 29 25 rustflags-y :=

-5

scripts/Makefile.lib

reviewed

··· 1 1 # SPDX-License-Identifier: GPL-2.0 2 2 - # Backward compatibility 3 3 - asflags-y += $(EXTRA_AFLAGS) 4 4 - ccflags-y += $(EXTRA_CFLAGS) 5 5 - cppflags-y += $(EXTRA_CPPFLAGS) 6 6 - ldflags-y += $(EXTRA_LDFLAGS) 7 2 8 3 # flags that take effect in current and sub directories 9 4 KBUILD_AFLAGS += $(subdir-asflags-y)

-14

scripts/checkpatch.pl

reviewed

··· 3689 3689 } 3690 3690 } 3691 3691 3692 3692 - if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) && 3693 3693 - ($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) { 3694 3694 - my $flag = $1; 3695 3695 - my $replacement = { 3696 3696 - 'EXTRA_AFLAGS' => 'asflags-y', 3697 3697 - 'EXTRA_CFLAGS' => 'ccflags-y', 3698 3698 - 'EXTRA_CPPFLAGS' => 'cppflags-y', 3699 3699 - 'EXTRA_LDFLAGS' => 'ldflags-y', 3700 3700 - }; 3701 3701 - 3702 3702 - WARN("DEPRECATED_VARIABLE", 3703 3703 - "Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag}); 3704 3704 - } 3705 3705 - 3706 3692 # check for DT compatible documentation 3707 3693 if (defined $root && 3708 3694 (($realfile =~ /\.dtsi?$/ && $line =~ /^\+\s*compatible\s*=\s*\"/) ||