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authorBob Moore <robert.moore@intel.com>2014-02-26 06:28:32 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-02-27 03:45:59 +0400
commit4ac4c5fad8a320f75cb84543403fb8bae5ad2254 (patch)
tree93b6c6a9dbc086412a1c2603cd5b47cc4d322e1f /drivers/acpi/acpica/acdebug.h
parent4dde507fc1984435f28862ddd1beb90822aa116c (diff)
downloadlinux-4ac4c5fad8a320f75cb84543403fb8bae5ad2254.tar.xz
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/acdebug.h')
-rw-r--r--drivers/acpi/acpica/acdebug.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 68a91eb0fa48..e9ab514a96c8 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -44,6 +44,8 @@
#ifndef __ACDEBUG_H__
#define __ACDEBUG_H__
+#pragma pack(push) /* Set default struct packing */
+
#define ACPI_DEBUG_BUFFER_SIZE 0x4000 /* 16K buffer for return objects */
struct acpi_db_command_info {
@@ -282,4 +284,6 @@ struct acpi_namespace_node *acpi_db_local_ns_lookup(char *name);
void acpi_db_uint32_to_hex_string(u32 value, char *buffer);
+#pragma pack(pop) /* Restore original struct packing */
+
#endif /* __ACDEBUG_H__ */