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PCI/ACPI: Request _OSC control once for each root bridge (v3)

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Move the evaluation of acpi_pci_osc_control_set() (to request control of
PCI Express native features) into acpi_pci_root_add() to avoid calling
it many times for the same root complex with the same arguments.
Additionally, check if all of the requisite _OSC support bits are set
before calling acpi_pci_osc_control_set() for a given root complex.

References: https://bugzilla.kernel.org/show_bug.cgi?id=20232
Reported-by: Ozan Caglayan <[email protected]>
Tested-by: Ozan Caglayan <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
This commit is contained in:
Rafael J. Wysocki 2011-01-07 00:55:09 +01:00 • committed by Jesse Barnes
commit 415e12b237
10 changed files with 72 additions and 46 deletions
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6
include/acpi/apei.h
View file

@ -19,6 +19,12 @@
extern int hest_disable;
extern int erst_disable;
#ifdef CONFIG_ACPI_APEI
void __init acpi_hest_init(void);
#else
static inline void acpi_hest_init(void) { return; }
#endif
typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
int apei_hest_parse(apei_hest_func_t func, void *data);