On Fri, Jan 03, 2014 at 05:01:11PM -0200, Leandro Dorileo wrote: > On Thu, Jan 02, 2014 at 03:37:57PM +0800, Lan Tianyu wrote: > > The aml method _BIX of NEC LZ750/LS returns a broken package which > > skip the first member "Revision" according ACPI 5.0 spec Table 10-234. > > > > This patch is to add a quirk for this machine to skip member "Revision" > > during parsing _BIX returned package. > > > > Reported-and-tested-by: Francisco Castro <fcr@xxxxxxxxxxxxx> > > Reference: https://bugzilla.kernel.org/show_bug.cgi?id=67351 > > Cc: 3.8+ <stable@xxxxxxxxxxxxxxx> > > Signed-off-by: Lan Tianyu <tianyu.lan@xxxxxxxxx> > > --- > > drivers/acpi/battery.c | 28 +++++++++++++++++++++++++++- > > 1 file changed, 27 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c > > index fbf1ace..3d64a87 100644 > > --- a/drivers/acpi/battery.c > > +++ b/drivers/acpi/battery.c > > @@ -62,6 +62,7 @@ MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@xxxxxxx>"); > > MODULE_DESCRIPTION("ACPI Battery Driver"); > > MODULE_LICENSE("GPL"); > > > > +static int battery_bix_broken_package; > > static unsigned int cache_time = 1000; > > module_param(cache_time, uint, 0644); > > MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); > > @@ -416,7 +417,12 @@ static int acpi_battery_get_info(struct acpi_battery *battery) > > ACPI_EXCEPTION((AE_INFO, status, "Evaluating %s", name)); > > return -ENODEV; > > } > > - if (test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags)) > > + > > + if (battery_bix_broken_package) > > + result = extract_package(battery, buffer.pointer, > > + extended_info_offsets + 1, > > + ARRAY_SIZE(extended_info_offsets) - 1); > > + else if (test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags)) > > result = extract_package(battery, buffer.pointer, > > extended_info_offsets, > > ARRAY_SIZE(extended_info_offsets)); > > @@ -754,6 +760,24 @@ static int battery_notify(struct notifier_block *nb, > > return 0; > > } > > > > +static int battery_bix_package_quirk(const struct dmi_system_id *id) > > +{ > > + battery_bix_broken_package = 1; > > + return 0; > > +} > > + > > > Do you really need this callback? Why don't you just do: > > if (dmi_check_system(bat_dmi_table)) > battery_bix_broken_package = 1; > Callback would be useful if we were to print the DMI data of the match, otherwise not so much. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
