linux-kernel - Re: [PATCH v14 1/5] x86/boot: Introduce get_acpi_rsdp() to parse RSDP in cmdline from KEXEC

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Date:   Mon, 17 Dec 2018 19:48:00 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Chao Fan <fanc.fnst@...fujitsu.com>, linux-kernel@...r.kernel.org,
        x86@...nel.org, bp@...en8.de, mingo@...hat.com, hpa@...or.com,
        keescook@...omium.org, bhe@...hat.com, msys.mizuma@...il.com,
        indou.takao@...fujitsu.com, caoj.fnst@...fujitsu.com
Subject: Re: [PATCH v14 1/5] x86/boot: Introduce get_acpi_rsdp() to parse
 RSDP in cmdline from KEXEC


* Thomas Gleixner <tglx@...utronix.de> wrote:

> On Mon, 17 Dec 2018, Ingo Molnar wrote:
> > * Chao Fan <fanc.fnst@...fujitsu.com> wrote:
> > > +		val[len] = '\0';
> > > +		return (acpi_physical_address)simple_strtoull(val, &e, 16);
> > 
> > 'return' is not a function - no need for the parenthesis.
> 
> It's a typecast which better has parenthesis....

Yeah, see my followup to the other reply where I withdraw the objection 
and point out the ugliness of the various typecasts.

Thanks,

	Ingo