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| author | Bob Moore <robert.moore@intel.com> | 2014-02-26 03:28:32 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-27 00:45:59 +0100 |
| commit | 4ac4c5fad8a320f75cb84543403fb8bae5ad2254 (patch) | |
| tree | 93b6c6a9dbc086412a1c2603cd5b47cc4d322e1f /drivers/acpi/acpica/achware.h | |
| parent | ACPICA: Add boot option to disable auto return object repair (diff) | |
| download | linux-4ac4c5fad8a320f75cb84543403fb8bae5ad2254.tar.xz linux-4ac4c5fad8a320f75cb84543403fb8bae5ad2254.zip | |
ACPICA: Headers: Deploy #pragma pack (push) and (pop).
Use push and pop to both guarantee that the correct alignment is used,
and to restore the alignment to whatever it was before the header
was included.
It is reported that the #pragma pack(push/pop) directives are not supported
by the specific GCCs, but this patch still doesn't affect kernel build
as there are already #pragma pack([1]) directives used in the old ACPICA
headers, which means there shouldn't be GCCs that are currently used to
compile the ACPI kernels do not support #pragma pack() directives.
References: https://bugs.acpica.org/show_bug.cgi?id=1058
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/achware.h')
| -rw-r--r-- | drivers/acpi/acpica/achware.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index 2ad2351a9833..4a0e63457881 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -44,6 +44,8 @@ #ifndef __ACHWARE_H__ #define __ACHWARE_H__ +#pragma pack(push) /* Set default struct packing */ + /* Values for the _SST predefined method */ #define ACPI_SST_INDICATOR_OFF 0 @@ -147,4 +149,6 @@ acpi_status acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, acpi_handle root_pci_device, acpi_handle pci_region); +#pragma pack(pop) /* Restore original struct packing */ + #endif /* __ACHWARE_H__ */ |