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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/acparser.h | |
| parent | 4dde507fc1984435f28862ddd1beb90822aa116c (diff) | |
| download | linux-4ac4c5fad8a320f75cb84543403fb8bae5ad2254.tar.gz linux-4ac4c5fad8a320f75cb84543403fb8bae5ad2254.tar.bz2 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/acparser.h')
| -rw-r--r-- | drivers/acpi/acpica/acparser.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h index 6168b85463ed..3d828be9dc20 100644 --- a/drivers/acpi/acpica/acparser.h +++ b/drivers/acpi/acpica/acparser.h @@ -44,6 +44,8 @@ #ifndef __ACPARSER_H__ #define __ACPARSER_H__ +#pragma pack(push) /* Set default struct packing */ + #define OP_HAS_RETURN_VALUE 1 /* Variable number of arguments. This field must be 32 bits */ @@ -251,4 +253,6 @@ acpi_ps_sprint_op(char *buffer_start, void acpi_ps_show(union acpi_parse_object *op); +#pragma pack(pop) /* Restore original struct packing */ + #endif /* __ACPARSER_H__ */ |