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| author | Bob Moore <robert.moore@intel.com> | 2014-02-26 10:28:32 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-27 00:45:59 +0100 |
| commit | 4ac4c5fad8a320f75cb84543403fb8bae5ad2254 (patch) | |
| tree | 93b6c6a9dbc086412a1c2603cd5b47cc4d322e1f /drivers/acpi/acpica/acutils.h | |
| parent | 4dde507fc1984435f28862ddd1beb90822aa116c (diff) | |
| download | linux-4ac4c5fad8a320f75cb84543403fb8bae5ad2254.tar.bz2 | |
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/acutils.h')
| -rw-r--r-- | drivers/acpi/acpica/acutils.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index ceeec0b7ccb1..df970ffb7356 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -44,6 +44,8 @@ #ifndef _ACUTILS_H #define _ACUTILS_H +#pragma pack(push) /* Set default struct packing */ + extern const u8 acpi_gbl_resource_aml_sizes[]; extern const u8 acpi_gbl_resource_aml_serial_bus_sizes[]; @@ -737,4 +739,6 @@ acpi_ut_method_error(const char *module_name, struct acpi_namespace_node *node, const char *path, acpi_status lookup_status); +#pragma pack(pop) /* Restore original struct packing */ + #endif /* _ACUTILS_H */ |