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Date: Wed, 6 Jul 2022 12:31:36 +0200 From: "Rafael J. Wysocki" <rafael@...nel.org> To: Li zeming <zeming@...china.com> Cc: "Rafael J. Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>, ACPI Devel Maling List <linux-acpi@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, kernel@...china.com Subject: Re: [PATCH] acpi/sbshc: Add header file macro definition On Wed, Jul 6, 2022 at 3:34 AM Li zeming <zeming@...china.com> wrote: > > Add header file macro definition. Please explain why you want to make this change. > Signed-off-by: Li zeming <zeming@...china.com> > --- > drivers/acpi/sbshc.h | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/acpi/sbshc.h b/drivers/acpi/sbshc.h > index 695c390e2884..22b11a1655d2 100644 > --- a/drivers/acpi/sbshc.h > +++ b/drivers/acpi/sbshc.h > @@ -1,4 +1,7 @@ > /* SPDX-License-Identifier: GPL-2.0 */ > +#ifndef _SBSHC_H > +#define _SBSHC_H > + > struct acpi_smb_hc; > enum acpi_smb_protocol { > SMBUS_WRITE_QUICK = 2, > @@ -30,3 +33,4 @@ extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_addres > extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc, > smbus_alarm_callback callback, void *context); > extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc); > +#endif > -- > 2.18.2 >
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