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From: Nicolas Schier <nicolas@fjasle.eu>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
	Palmer Dabbelt <palmer@rivosinc.com>,
	Albert Ou <aou@eecs.berkeley.edu>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Thomas Gleixner <tglx@linutronix.de>, Tom Rix <trix@redhat.com>,
	linux-riscv@lists.infradead.org, llvm@lists.linux.dev,
	x86@kernel.org
Subject: Re: [PATCH] kbuild: add test-{ge,gt,le,lt} macros
Date: Tue, 13 Dec 2022 05:02:17 +0100	[thread overview]
Message-ID: <Y5f5SQxQRFpH8u2s@bergen.fjasle.eu> (raw)
In-Reply-To: <20221211024647.2614394-1-masahiroy@kernel.org>

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On Sun 11 Dec 2022 11:46:47 GMT, Masahiro Yamada wrote:
> GNU Make 4.4 introduced $(intcmp ...), which is useful to compare two
> integers without forking a new process.
> 
> Add test-{ge,gt,le,lt} macros, which work more efficiently with GNU
> Make >= 4.4. For older Make versions, they fall back to the 'test'
> shell command.
> 
> The first two parameters to $(intcmp ...) must not be empty. To avoid
> the syntax error, I appended '0' to them. Fortunately, '00' is treated
> as '0'. This is needed because CONFIG options may expand to an empty
> string when the kernel configuration is not included.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> # RISC-V
> ---
> 
> Changes in v3:
>   - Use $(intcmp ...) instead of playing with $(sort ...)

Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>

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      parent reply	other threads:[~2022-12-13  4:04 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-11  2:46 Masahiro Yamada
2022-12-12 17:08 ` Nathan Chancellor
2022-12-13  4:02 ` Nicolas Schier [this message]

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