netdev - Re: [PATCH V4] Export ACPI _DSM provided firmware instance number and string name to sysfs

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Date:	Mon, 7 Mar 2011 11:44:52 -0800
From:	<Narendra_K@...l.com>
To:	<a.beregalov@...il.com>, <linux-next@...r.kernel.org>
CC:	<jbarnes@...tuousgeek.org>, <linux-pci@...r.kernel.org>,
	<linux-hotplug@...r.kernel.org>, <netdev@...r.kernel.org>,
	<mjg@...hat.com>, <Matt_Domsch@...l.com>, <Charles_Rose@...l.com>,
	<Jordan_Hargrave@...l.com>, <Shyam_Iyer@...l.com>,
	<sfr@...b.auug.org.au>
Subject: Re: [PATCH V4] Export ACPI _DSM provided firmware instance number
 and string name to sysfs

On Mon, Mar 07, 2011 at 11:34:05PM +0530, Alexander Beregalov wrote:
> On 4 March 2011 21:43, Jesse Barnes <jbarnes@...tuousgeek.org> wrote:
> > On Wed, 2 Mar 2011 22:34:17 +0530
> > <Narendra_K@...l.com> wrote:
> >
> >> On Wed, Feb 23, 2011 at 06:06:42PM +0530, K, Narendra wrote:
> >> > Hello,
> >> >
> >> > This patch exports ACPI _DSM provided firmware instance number and
> >> > string name to sysfs.
> >> >
> >> > V1 -> V2:
> >> > The attribute 'index' is changed to 'acpi_index' as the semantics of
> >> > SMBIOS provided device type instance and ACPI _DSM provided firmware
> >> > instance number are different.
> >> >
> >> > V2 -> V3:
> >> > Matthew Garrett pointed out that 'sysfs_create_groups' does return an
> >> > error when there are no ACPI _DSM attributes available and because of
> >> > that the fallback to SMBIOS will not happen. As a result SMBIOS provided
> >> > attributes are not created. This version of the patch addresses the issue.
> >> >
> >>
> >> V3 -> V4:
> >> Select NLS if (DMI || ACPI) in drivers/pci/Kconfig to prevent build
> >> breakage from an 'allmodconfig'
> >
> > Applied, fingers crossed this time. :)
> >
> 
> Hi,
> 
> It cannot be compiled if CONFIG_ACPI is not set.
> 
> drivers/pci/pci-label.c: In function 'pci_create_firmware_label_files':
> drivers/pci/pci-label.c:366:2: error: implicit declaration of function
> 'device_has_dsm'

Hello,

Sorry for the inconvenience. Please find the fix here -

From: Narendra K <narendra_k@...l.com>
Subject: [PATCH] Fix compilation error when CONFIG_ACPI unset

This patch fixes compilation error descibed below introduced by
the commit 6058989bad05b82e78baacce69ec14f27a11b5fd

drivers/pci/pci-label.c: In function ‘pci_create_firmware_label_files’:
drivers/pci/pci-label.c:366:2: error: implicit declaration of function ‘device_has_dsm’

Signed-off-by: Narendra K <narendra_k@...l.com>
---
 drivers/pci/pci-label.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
index 824e247..82fd73d 100644
--- a/drivers/pci/pci-label.c
+++ b/drivers/pci/pci-label.c
@@ -29,7 +29,9 @@
 #include <linux/nls.h>
 #include <linux/acpi.h>
 #include <linux/pci-acpi.h>
+#ifdef CONFIG_ACPI
 #include <acpi/acpi_drivers.h>
+#endif
 #include <acpi/acpi_bus.h>
 #include "pci.h"
 
@@ -174,6 +176,12 @@ pci_remove_acpi_index_label_files(struct pci_dev *pdev)
 	return -1;
 }
 
+static inline bool
+device_has_dsm(struct device *dev)
+{
+	return false;
+}
+
 #else
 
 static const char device_label_dsm_uuid[] = {
-- 
1.7.3.1

With regards,
Narendra K