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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2021-06-11 17:57:24 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2021-06-11 17:57:24 +0200
commitbc8865ab32bb8d71b607cf73a8367ceebda88767 (patch)
tree9e698036be6a25742ec85ef5c1a71c15637d6acd
parentf1ffa9d4cccc8fdf6c03fb1b3429154d22037988 (diff)
parent159d8c274fd92438ca6d7068d7a5eeda157227f4 (diff)
downloadlinux-bc8865ab32bb8d71b607cf73a8367ceebda88767.tar.bz2
Merge branch 'acpi-bus'
* acpi-bus: ACPI: Pass the same capabilities to the _OSC regardless of the query flag
-rw-r--r--drivers/acpi/bus.c27
1 files changed, 8 insertions, 19 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index be7da23fad76..a4bd673934c0 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -330,32 +330,21 @@ static void acpi_bus_osc_negotiate_platform_control(void)
if (ACPI_FAILURE(acpi_run_osc(handle, &context)))
return;
- capbuf_ret = context.ret.pointer;
- if (context.ret.length <= OSC_SUPPORT_DWORD) {
- kfree(context.ret.pointer);
- return;
- }
+ kfree(context.ret.pointer);
- /*
- * Now run _OSC again with query flag clear and with the caps
- * supported by both the OS and the platform.
- */
+ /* Now run _OSC again with query flag clear */
capbuf[OSC_QUERY_DWORD] = 0;
- capbuf[OSC_SUPPORT_DWORD] = capbuf_ret[OSC_SUPPORT_DWORD];
- kfree(context.ret.pointer);
if (ACPI_FAILURE(acpi_run_osc(handle, &context)))
return;
capbuf_ret = context.ret.pointer;
- if (context.ret.length > OSC_SUPPORT_DWORD) {
- osc_sb_apei_support_acked =
- capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT;
- osc_pc_lpi_support_confirmed =
- capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_PCLPI_SUPPORT;
- osc_sb_native_usb4_support_confirmed =
- capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_NATIVE_USB4_SUPPORT;
- }
+ osc_sb_apei_support_acked =
+ capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT;
+ osc_pc_lpi_support_confirmed =
+ capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_PCLPI_SUPPORT;
+ osc_sb_native_usb4_support_confirmed =
+ capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_NATIVE_USB4_SUPPORT;
kfree(context.ret.pointer);
}