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SubjectRe: next: sfi build fails when !CONFIG_ACPI
On Thu, 23 Jul 2009 16:33:22 +0800 Feng Tang wrote:

> 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!

Works for me. 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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