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| author | Lin Ming <ming.m.lin@intel.com> | 2010-12-09 16:50:52 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-12-11 01:28:58 -0500 |
| commit | d90aa92c0c1625d7f02050e4d2924805840cda3d (patch) | |
| tree | 89696463c63038cb37609873951b0cdb4dc473f6 /include/linux | |
| parent | cf7d7e5a1980d1116ee152d25dac382b112b9c17 (diff) | |
| download | kernel-mfld-blackbay-d90aa92c0c1625d7f02050e4d2924805840cda3d.tar.gz kernel-mfld-blackbay-d90aa92c0c1625d7f02050e4d2924805840cda3d.tar.bz2 kernel-mfld-blackbay-d90aa92c0c1625d7f02050e4d2924805840cda3d.zip | |
acpi: fix _OSI string setup regression
commit b0ed7a91(ACPICA/ACPI: Add new host interfaces for _OSI suppor)
introduced a regression that _OSI string setup fails.
There are 2 paths to setup _OSI string.
DMI:
acpi_dmi_osi_linux -> set_osi_linux -> acpi_osi_setup -> copy _OSI
string to osi_setup_string
Boot command line:
acpi_osi_setup -> copy _OSI string to osi_setup_string
Later, acpi_osi_setup_late will be called to handle osi_setup_string.
If _OSI string is "Linux" or "!Linux", then the call path is,
acpi_osi_setup_late -> acpi_cmdline_osi_linux -> set_osi_linux ->
acpi_osi_setup -> copy _OSI string to osi_setup_string
This actually never installs _OSI string(acpi_install_interface not
called), but just copy the _OSI string to osi_setup_string.
This patch fixes the regression.
Reported-and-tested-by: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/acpi.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 050a7bccb83..67c91b4418b 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -219,7 +219,7 @@ static inline int acpi_video_display_switch_support(void) extern int acpi_blacklisted(void); extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d); -extern int acpi_osi_setup(char *str); +extern void acpi_osi_setup(char *str); #ifdef CONFIG_ACPI_NUMA int acpi_get_pxm(acpi_handle handle); |