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SubjectRe: next: sfi build fails when !CONFIG_ACPI
On Thu, 23 Jul 2009 06:06:17 +0800
Randy Dunlap <randy.dunlap@oracle.com> wrote:

> On Thu, 16 Jul 2009 12:48:01 +0400 Alexander Beregalov wrote:
>
> > Hi
> >
> > drivers/sfi/sfi_core.c: In function 'sfi_init':
> > drivers/sfi/sfi_core.c:346: error: 'acpi_disabled' undeclared (first
> > use in this function)
> > drivers/sfi/sfi_core.c:346: error: (Each undeclared identifier is
> > reported only once
> > drivers/sfi/sfi_core.c:346: error: for each function it appears in.)
> >
> >
> > $ grep ACPI .config
> > # Power management and ACPI options
> > --
>
> next-20090722 still fails on x86_32 when SFI=y & ACPI=n:
>
> arch/x86/pci/mmconfig_32.c:34: error: invalid use of undefined type
> 'struct acpi_mcfg_allocation' arch/x86/pci/mmconfig_32.c:34: error:
> dereferencing pointer to incomplete type
> arch/x86/pci/mmconfig_32.c:35: error: dereferencing pointer to
> incomplete type arch/x86/pci/mmconfig_32.c:36: error: dereferencing
> pointer to incomplete type arch/x86/pci/mmconfig_32.c:37: error:
> dereferencing pointer to incomplete type
> arch/x86/pci/mmconfig_32.c:38: error: dereferencing pointer to
> incomplete type
>
> config is attached.
Hi Randy,

Thanks for the catch. Could you try the following patch? thanks!

- Feng

diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index 25a0d9f..e89bf33 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -557,15 +557,15 @@ static int __init pci_parse_mcfg(struct acpi_table_header *header)
i -= sizeof(struct acpi_mcfg_allocation);
};
if (pci_mmcfg_config_num == 0) {
- printk(KERN_ERR PREFIX "MMCONFIG has no entries\n");
+ printk(KERN_ERR "PCI: MMCONFIG has no entries\n");
return -ENODEV;
}

config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config);
pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL);
if (!pci_mmcfg_config) {
- printk(KERN_WARNING PREFIX
- "No memory for MCFG config tables\n");
+ printk(KERN_WARNING
+ "PCI: No memory for MCFG config tables\n");
return -ENOMEM;
}

@@ -576,8 +576,8 @@ static int __init pci_parse_mcfg(struct acpi_table_header *header)
for (i = 0; i < pci_mmcfg_config_num; ++i) {
if ((pci_mmcfg_config[i].address > 0xFFFFFFFF) &&
!acpi_mcfg_64bit_base_addr) {
- printk(KERN_ERR PREFIX
- "MMCONFIG not in low 4GB of memory\n");
+ printk(KERN_ERR
+ "PCI: MMCONFIG not in low 4GB of memory\n");
kfree(pci_mmcfg_config);
pci_mmcfg_config_num = 0;
return -ENODEV;
@@ -609,7 +609,9 @@ static void __init __pci_mmcfg_init(int early)
if (!known_bridge)
x86_table_parse(ACPI_SIG_MCFG, pci_parse_mcfg);

+#ifdef CONFIG_ACPI
pci_mmcfg_reject_broken(early);
+#endif

if ((pci_mmcfg_config_num == 0) ||
(pci_mmcfg_config == NULL) ||
diff --git a/arch/x86/pci/mmconfig_32.c b/arch/x86/pci/mmconfig_32.c
index 8b2d561..f10a7e9 100644
--- a/arch/x86/pci/mmconfig_32.c
+++ b/arch/x86/pci/mmconfig_32.c
@@ -11,9 +11,9 @@

#include <linux/pci.h>
#include <linux/init.h>
-#include <linux/acpi.h>
#include <asm/e820.h>
#include <asm/pci_x86.h>
+#include <acpi/acpi.h>

/* Assume systems with more busses have correct MCFG */
#define mmcfg_virt_addr ((void __iomem *) fix_to_virt(FIX_PCIE_MCFG))
diff --git a/include/linux/sfi_acpi.h b/include/linux/sfi_acpi.h
index 356d0a2..3c645bb 100644
--- a/include/linux/sfi_acpi.h
+++ b/include/linux/sfi_acpi.h
@@ -50,8 +50,10 @@ extern int sfi_acpi_table_parse(char *signature, char *oem_id,
static inline int x86_table_parse(char *signature,
int (*handler)(struct acpi_table_header *))
{
+#ifdef CONFIG_ACPI
if (!acpi_table_parse(signature, handler))
return 0;
+#endif

return sfi_acpi_table_parse(signature, NULL, NULL, handler);
}
>
> ---
> ~Randy
> LPC 2009, Sept. 23-25, Portland, Oregon
> http://linuxplumbersconf.org/2009/


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