diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-08 07:14:06 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-08 07:14:06 +0900 |
| commit | d8dc91b753b881c60c766c06aeec87675a07df4a (patch) | |
| tree | 9a02f81fc5436b424d88c2340dcd6b0fe6ae6cca /include/acpi/actbl3.h | |
| parent | 7035cdf36d5c4d913f68ff97e1c2e5603500d946 (diff) | |
| parent | 3f44ea0d1c3835872033a6633135e16f87161202 (diff) | |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pul ACPI & Power Management updates from Len Brown:
- acpidump utility added
- intel_idle driver now supports IVB Xeon
- turbostat utility can now count SMIs
- ACPI can now bind to USB3 hubs
- misc fixes
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (49 commits)
ACPI: Add new sysfs interface to export device description
ACPI: Harden acpi_table_parse_entries() against BIOS bug
tools/power/turbostat: add option to count SMIs, re-name some options
tools/power turbostat: add [-d MSR#][-D MSR#] options to print counter deltas
intel_idle: enable IVB Xeon support
tools/power turbostat: add [-m MSR#] option
tools/power turbostat: make -M output pretty
tools/power turbostat: print more turbo-limit information
tools/power turbostat: delete unused line
tools/power turbostat: run on IVB Xeon
tools/power/acpi/acpidump: create acpidump(8), local make install targets
tools/power/acpi/acpidump: version 20101221 - find dynamic tables in sysfs
ACPI: run _OSC after ACPI_FULL_INITIALIZATION
tools/power/acpi/acpidump: create acpidump(8), local make install targets
tools/power/acpi/acpidump: version 20101221 - find dynamic tables in sysfs
tools/power/acpi/acpidump: version 20071116
tools/power/acpi/acpidump: version 20070714
tools/power/acpi/acpidump: version 20060606
tools/power/acpi/acpidump: version 20051111
xo15-ebook: convert to module_acpi_driver()
...
Diffstat (limited to 'include/acpi/actbl3.h')
| -rw-r--r-- | include/acpi/actbl3.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h index f65a0ed869e..8c61b5fe42a 100644 --- a/include/acpi/actbl3.h +++ b/include/acpi/actbl3.h @@ -75,7 +75,6 @@ /* Reserved table signatures */ #define ACPI_SIG_CSRT "CSRT" /* Core System Resources Table */ -#define ACPI_SIG_DBG2 "DBG2" /* Debug Port table 2 */ #define ACPI_SIG_MATR "MATR" /* Memory Address Translation Table */ #define ACPI_SIG_MSDM "MSDM" /* Microsoft Data Management Table */ #define ACPI_SIG_WPBT "WPBT" /* Windows Platform Binary Table */ @@ -87,9 +86,15 @@ #pragma pack(1) /* - * Note about bitfields: The u8 type is used for bitfields in ACPI tables. - * This is the only type that is even remotely portable. Anything else is not - * portable, so do not use any other bitfield types. + * Note: C bitfields are not used for this reason: + * + * "Bitfields are great and easy to read, but unfortunately the C language + * does not specify the layout of bitfields in memory, which means they are + * essentially useless for dealing with packed data in on-disk formats or + * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me, + * this decision was a design error in C. Ritchie could have picked an order + * and stuck with it." Norman Ramsey. + * See http://stackoverflow.com/a/1053662/41661 */ /******************************************************************************* |