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Date: Mon, 15 Sep 2014 15:51:07 +0100 From: Catalin Marinas <catalin.marinas@....com> To: Olof Johansson <olof@...om.net> Cc: "hanjun.guo@...aro.org" <hanjun.guo@...aro.org>, "Rafael J. Wysocki" <rjw@...ysocki.net>, Mark Rutland <Mark.Rutland@....com>, "grant.likely@...aro.org" <grant.likely@...aro.org>, Will Deacon <Will.Deacon@....com>, "graeme.gregory@...aro.org" <graeme.gregory@...aro.org>, Arnd Bergmann <arnd@...db.de>, Sudeep Holla <Sudeep.Holla@....com>, "jcm@...hat.com" <jcm@...hat.com>, Jason Cooper <jason@...edaemon.net>, Marc Zyngier <Marc.Zyngier@....com>, Bjorn Helgaas <bhelgaas@...gle.com>, Daniel Lezcano <daniel.lezcano@...aro.org>, Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>, Robert Richter <rric@...nel.org>, Lv Zheng <lv.zheng@...el.com>, Robert Moore <robert.moore@...el.com>, Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>, Liviu Dudau <Liviu.Dudau@....com>, Randy Dunlap <rdunlap@...radead.org>, Charles Garcia-Tobin <Charles.Garcia-Tobin@....com>, "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linaro-acpi@...ts.linaro.org" <linaro-acpi@...ts.linaro.org>, Al Stone <al.stone@...aro.org> Subject: Re: [PATCH v4 06/18] ARM64 / ACPI: Introduce early_param for "acpi" On Mon, Sep 15, 2014 at 07:28:24AM +0100, Olof Johansson wrote: > On Fri, Sep 12, 2014 at 10:00:04PM +0800, Hanjun Guo wrote: > > See also Documentation/power/runtime_pm.txt, pci=noacpi > > > > diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c > > index 9252f72..693da7f 100644 > > --- a/arch/arm64/kernel/acpi.c > > +++ b/arch/arm64/kernel/acpi.c > > @@ -67,3 +67,18 @@ void __init acpi_boot_table_init(void) > > if (acpi_table_init()) > > disable_acpi(); > > } > > + > > +static int __init parse_acpi(char *arg) > > +{ > > + if (!arg) > > + return -EINVAL; > > + > > + /* "acpi=off" disables both ACPI table parsing and interpreter */ > > + if (strcmp(arg, "off") == 0) > > + disable_acpi(); > > + else > > + return -EINVAL; /* Core will print when we return error */ > > For symmetry, you should handle acpi=force here too (i.e. if someone > disables by default, which I expect we'll ask for when this code is > first merged). Does this mean you want another Kconfig option - ACPI_DEFAULT_OFF (which would be set by default)? -- Catalin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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