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From: David Laight <David.Laight@ACULAB.COM>
To: 'Nathan Chancellor' <nathan@kernel.org>,
	Masahiro Yamada <masahiroy@kernel.org>
Cc: "linux-kbuild@vger.kernel.org" <linux-kbuild@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>
Subject: RE: [PATCH 05/15] kbuild: build init/built-in.a just once
Date: Wed, 14 Sep 2022 09:46:08 +0000	[thread overview]
Message-ID: <87548726b6cc4f518836db38d45a04f2@AcuMS.aculab.com> (raw)
In-Reply-To: <YyBAFL9CBsM9gl38@dev-arch.thelio-3990X>

...
> > +VERSION=$(cat .version) 2>/dev/null &&
> > +VERSION=$(expr $VERSION + 1) 2>/dev/null ||
> > +VERSION=1

What's wrong with:
VERSION=$(($(cat .version 2>/dev/null) + 1))

If you are worried about .version not containing a valid
number and $((...)) failing then use ${VERSION:-1} later.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)


  parent reply	other threads:[~2022-09-14  9:46 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-28  2:39 [PATCH 00/15] kbuild: various cleanups Masahiro Yamada
2022-08-28  2:39 ` [PATCH 01/15] kbuild: remove duplicated dependency between modules and modules_check Masahiro Yamada
2022-08-28  2:39 ` [PATCH 02/15] kbuild: refactor single builds of *.ko Masahiro Yamada
2022-08-28  2:39 ` [PATCH 03/15] kbuild: move 'PHONY += modules_prepare' to the common part Masahiro Yamada
2022-08-28  2:39 ` [PATCH 04/15] init/version.c: remove #include <linux/version.h> Masahiro Yamada
2022-08-28  2:39 ` [PATCH 05/15] kbuild: build init/built-in.a just once Masahiro Yamada
2022-09-02  9:41   ` Masahiro Yamada
2022-09-13  8:32   ` Nathan Chancellor
2022-09-13 11:07     ` Masahiro Yamada
2022-09-14  9:46     ` David Laight [this message]
2022-09-14 13:00       ` Masahiro Yamada
2022-11-17 10:00   ` Jon Hunter
2022-11-17 11:08     ` Masahiro Yamada
2022-08-28  2:39 ` [PATCH 06/15] kbuild: generate include/generated/compile.h in top Makefile Masahiro Yamada
2022-08-28  2:39 ` [PATCH 07/15] scripts/mkcompile_h: move LC_ALL=C to '$LD -v' Masahiro Yamada
2022-08-28  2:39 ` [PATCH 08/15] Revert "kbuild: Make scripts/compile.h when sh != bash" Masahiro Yamada
2022-08-28  2:39 ` [PATCH 09/15] kbuild: rename modules.order in sub-directories to .modules.order Masahiro Yamada
2022-08-28  2:39 ` [PATCH 10/15] kbuild: move core-y in top Makefile to ./Kbuild Masahiro Yamada
2022-08-28  2:39 ` [PATCH 11/15] kbuild: move .vmlinux.objs rule to Makefile.modpost Masahiro Yamada
2022-08-28  2:40 ` [PATCH 12/15] kbuild: move vmlinux.o rule to the top Makefile Masahiro Yamada
2022-08-28  2:40 ` [PATCH 13/15] kbuild: unify two modpost invocations Masahiro Yamada
2022-08-28  2:40 ` [PATCH 14/15] kbuild: use obj-y instead extra-y for objects placed at the head Masahiro Yamada
2022-08-28  2:40 ` [PATCH 15/15] kbuild: remove head-y syntax Masahiro Yamada
2022-09-06  5:37 ` [PATCH 00/15] kbuild: various cleanups Masahiro Yamada

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