diff options
| author | Lv Zheng <lv.zheng@intel.com> | 2013-12-03 08:49:16 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-12-07 01:03:14 +0100 |
| commit | 8b48463f89429af408ff695244dc627e1acff4f7 (patch) | |
| tree | 7870e8c2e8ed42df90ba79a809f1ec57656fedaf /drivers/pnp | |
| parent | 6ce4eac1f600b34f2f7f58f9cd8f0503d79e42ae (diff) | |
ACPI: Clean up inclusions of ACPI header files
Replace direct inclusions of <acpi/acpi.h>, <acpi/acpi_bus.h> and
<acpi/acpi_drivers.h>, which are incorrect, with <linux/acpi.h>
inclusions and remove some inclusions of those files that aren't
necessary.
First of all, <acpi/acpi.h>, <acpi/acpi_bus.h> and <acpi/acpi_drivers.h>
should not be included directly from any files that are built for
CONFIG_ACPI unset, because that generally leads to build warnings about
undefined symbols in !CONFIG_ACPI builds. For CONFIG_ACPI set,
<linux/acpi.h> includes those files and for CONFIG_ACPI unset it
provides stub ACPI symbols to be used in that case.
Second, there are ordering dependencies between those files that always
have to be met. Namely, it is required that <acpi/acpi_bus.h> be included
prior to <acpi/acpi_drivers.h> so that the acpi_pci_root declarations the
latter depends on are always there. And <acpi/acpi.h> which provides
basic ACPICA type declarations should always be included prior to any other
ACPI headers in CONFIG_ACPI builds. That also is taken care of including
<linux/acpi.h> as appropriate.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> (drivers/pci stuff)
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> (Xen stuff)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/pnp')
| -rw-r--r-- | drivers/pnp/pnpacpi/core.c | 1 | ||||
| -rw-r--r-- | drivers/pnp/pnpacpi/pnpacpi.h | 1 |
2 files changed, 0 insertions, 2 deletions
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 14655a0f043..e869ba698ac 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -24,7 +24,6 @@ #include <linux/pnp.h> #include <linux/slab.h> #include <linux/mod_devicetable.h> -#include <acpi/acpi_bus.h> #include "../base.h" #include "pnpacpi.h" diff --git a/drivers/pnp/pnpacpi/pnpacpi.h b/drivers/pnp/pnpacpi/pnpacpi.h index 3e60225b022..051ef969977 100644 --- a/drivers/pnp/pnpacpi/pnpacpi.h +++ b/drivers/pnp/pnpacpi/pnpacpi.h @@ -1,7 +1,6 @@ #ifndef ACPI_PNP_H #define ACPI_PNP_H -#include <acpi/acpi_bus.h> #include <linux/acpi.h> #include <linux/pnp.h> |