November 2024 - Linux-stable-mirror

[PATCH v2] usb: typec: Drop reference to a fwnode

by Joe Hattori

In typec_port_register_altmodes(), the fwnode reference obtained by device_get_named_child_node() is not dropped. This commit adds a call to fwnode_handle_put() to fix the possible reference leak. Fixes: 7b458a4c5d73 ("usb: typec: Add typec_port_register_altmodes()") Cc: stable(a)vger.kernel.org Signed-off-by: Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> --- Changes in v2: - Add the Cc: stable(a)vger.kernel.org line. --- drivers/usb/typec/class.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index 58f40156de56..145e12e13aef 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -2343,6 +2343,7 @@ void typec_port_register_altmodes(struct typec_port *port, altmodes[index] = alt; index++; } + fwnode_handle_put(altmodes_node); } EXPORT_SYMBOL_GPL(typec_port_register_altmodes); -- 2.34.1

2 months, 1 week

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Re: Patch "igb: Disable threaded IRQ for igb_msix_other" has been added to the 6.11-stable tree

by Sebastian Andrzej Siewior

On 2024-11-01 15:21:24 [-0400], Sasha Levin wrote: > commit 052382490ee4f0f6d783ddce02fe6f2d15e134b5 > Author: Wander Lairson Costa <wander(a)redhat.com> > Date: Mon Oct 21 16:26:24 2024 -0700 > > igb: Disable threaded IRQ for igb_msix_other > > [ Upstream commit 338c4d3902feb5be49bfda530a72c7ab860e2c9f ] > > During testing of SR-IOV, Red Hat QE encountered an issue where the > ip link up command intermittently fails for the igbvf interfaces when > using the PREEMPT_RT variant. Investigation revealed that > e1000_write_posted_mbx returns an error due to the lack of an ACK > from e1000_poll_for_ack. > > The underlying issue arises from the fact that IRQs are threaded by > default under PREEMPT_RT. While the exact hardware details are not > available, it appears that the IRQ handled by igb_msix_other must > be processed before e1000_poll_for_ack times out. However, > e1000_write_posted_mbx is called with preemption disabled, leading > to a scenario where the IRQ is serviced only after the failure of > e1000_write_posted_mbx. > > To resolve this, we set IRQF_NO_THREAD for the affected interrupt, > ensuring that the kernel handles it immediately, thereby preventing > the aforementioned error. Wander, please send a revert of this patch. The ISR (E1000_ICR_TS set) may invoke igb_msg_task(), ptp_clock_event(), igb_perout(), igb_extts() each of which acquire sleeping locks on PREEMPT_RT. Not sure if this improved the situation or not. Sebastian

2 months, 1 week

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[PATCH AUTOSEL 4.19 1/5] ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet

by Sasha Levin

From: Hans de Goede <hdegoede(a)redhat.com> [ Upstream commit 0107f28f135231da22a9ad5756bb16bd5cada4d5 ] The Vexia Edu Atla 10 tablet mostly uses the BYTCR tablet defaults, but as happens on more models it is using IN1 instead of IN3 for its internal mic and JD_SRC_JD2_IN4N instead of JD_SRC_JD1_IN4P for jack-detection. Add a DMI quirk for this to fix the internal-mic and jack-detection. Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> Link: https://patch.msgid.link/20241024211615.79518-2-hdegoede@redhat.com Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/intel/boards/bytcr_rt5640.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 16e2ab2903754..2ed63866e9cc6 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -879,6 +879,21 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { BYT_RT5640_SSP0_AIF2 | BYT_RT5640_MCLK_EN), }, + { /* Vexia Edu Atla 10 tablet */ + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), + DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"), + /* Above strings are too generic, also match on BIOS date */ + DMI_MATCH(DMI_BIOS_DATE, "08/25/2014"), + }, + .driver_data = (void *)(BYT_RT5640_IN1_MAP | + BYT_RT5640_JD_SRC_JD2_IN4N | + BYT_RT5640_OVCD_TH_2000UA | + BYT_RT5640_OVCD_SF_0P75 | + BYT_RT5640_DIFF_MIC | + BYT_RT5640_SSP0_AIF2 | + BYT_RT5640_MCLK_EN), + }, { /* Voyo Winpad A15 */ .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), -- 2.43.0

2 months, 1 week

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[PATCH AUTOSEL 5.4 1/6] ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet

by Sasha Levin

From: Hans de Goede <hdegoede(a)redhat.com> [ Upstream commit 0107f28f135231da22a9ad5756bb16bd5cada4d5 ] The Vexia Edu Atla 10 tablet mostly uses the BYTCR tablet defaults, but as happens on more models it is using IN1 instead of IN3 for its internal mic and JD_SRC_JD2_IN4N instead of JD_SRC_JD1_IN4P for jack-detection. Add a DMI quirk for this to fix the internal-mic and jack-detection. Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> Link: https://patch.msgid.link/20241024211615.79518-2-hdegoede@redhat.com Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/intel/boards/bytcr_rt5640.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 057ecfe2c8b5c..53a15be38b56f 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -909,6 +909,21 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { BYT_RT5640_SSP0_AIF2 | BYT_RT5640_MCLK_EN), }, + { /* Vexia Edu Atla 10 tablet */ + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), + DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"), + /* Above strings are too generic, also match on BIOS date */ + DMI_MATCH(DMI_BIOS_DATE, "08/25/2014"), + }, + .driver_data = (void *)(BYT_RT5640_IN1_MAP | + BYT_RT5640_JD_SRC_JD2_IN4N | + BYT_RT5640_OVCD_TH_2000UA | + BYT_RT5640_OVCD_SF_0P75 | + BYT_RT5640_DIFF_MIC | + BYT_RT5640_SSP0_AIF2 | + BYT_RT5640_MCLK_EN), + }, { /* Voyo Winpad A15 */ .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), -- 2.43.0

2 months, 1 week

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[PATCH AUTOSEL 5.10 1/6] ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet

by Sasha Levin

From: Hans de Goede <hdegoede(a)redhat.com> [ Upstream commit 0107f28f135231da22a9ad5756bb16bd5cada4d5 ] The Vexia Edu Atla 10 tablet mostly uses the BYTCR tablet defaults, but as happens on more models it is using IN1 instead of IN3 for its internal mic and JD_SRC_JD2_IN4N instead of JD_SRC_JD1_IN4P for jack-detection. Add a DMI quirk for this to fix the internal-mic and jack-detection. Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> Link: https://patch.msgid.link/20241024211615.79518-2-hdegoede@redhat.com Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/intel/boards/bytcr_rt5640.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 47b581d99da67..6fc6a1fcd935e 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -935,6 +935,21 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { BYT_RT5640_SSP0_AIF2 | BYT_RT5640_MCLK_EN), }, + { /* Vexia Edu Atla 10 tablet */ + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), + DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"), + /* Above strings are too generic, also match on BIOS date */ + DMI_MATCH(DMI_BIOS_DATE, "08/25/2014"), + }, + .driver_data = (void *)(BYT_RT5640_IN1_MAP | + BYT_RT5640_JD_SRC_JD2_IN4N | + BYT_RT5640_OVCD_TH_2000UA | + BYT_RT5640_OVCD_SF_0P75 | + BYT_RT5640_DIFF_MIC | + BYT_RT5640_SSP0_AIF2 | + BYT_RT5640_MCLK_EN), + }, { /* Voyo Winpad A15 */ .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), -- 2.43.0

2 months, 1 week

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[PATCH AUTOSEL 5.15 01/10] ASoC: Intel: bytcr_rt5640: Add support for non ACPI instantiated codec

by Sasha Levin

From: Hans de Goede <hdegoede(a)redhat.com> [ Upstream commit d48696b915527b5bcdd207a299aec03fb037eb17 ] On some x86 Bay Trail tablets which shipped with Android as factory OS, the DSDT is so broken that the codec needs to be manually instantatiated by the special x86-android-tablets.ko "fixup" driver for cases like this. This means that the codec-dev cannot be retrieved through its ACPI fwnode, add support to the bytcr_rt5640 machine driver for such manually instantiated rt5640 i2c_clients. An example of a tablet which needs this is the Vexia EDU ATLA 10 tablet, which has been distributed to schools in the Spanish Andalucía region. Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> Link: https://patch.msgid.link/20241024211615.79518-1-hdegoede@redhat.com Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/intel/boards/bytcr_rt5640.c | 33 ++++++++++++++++++++++++--- 1 file changed, 30 insertions(+), 3 deletions(-) diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 3d2a0e8cad9a5..899a8435a1eb8 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -17,6 +17,7 @@ #include <linux/acpi.h> #include <linux/clk.h> #include <linux/device.h> +#include <linux/device/bus.h> #include <linux/dmi.h> #include <linux/gpio/consumer.h> #include <linux/gpio/machine.h> @@ -32,6 +33,8 @@ #include "../atom/sst-atom-controls.h" #include "../common/soc-intel-quirks.h" +#define BYT_RT5640_FALLBACK_CODEC_DEV_NAME "i2c-rt5640" + enum { BYT_RT5640_DMIC1_MAP, BYT_RT5640_DMIC2_MAP, @@ -1616,9 +1619,33 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) codec_dev = acpi_get_first_physical_node(adev); acpi_dev_put(adev); - if (!codec_dev) - return -EPROBE_DEFER; - priv->codec_dev = get_device(codec_dev); + + if (codec_dev) { + priv->codec_dev = get_device(codec_dev); + } else { + /* + * Special case for Android tablets where the codec i2c_client + * has been manually instantiated by x86_android_tablets.ko due + * to a broken DSDT. + */ + codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL, + BYT_RT5640_FALLBACK_CODEC_DEV_NAME); + if (!codec_dev) + return -EPROBE_DEFER; + + if (!i2c_verify_client(codec_dev)) { + dev_err(dev, "Error '%s' is not an i2c_client\n", + BYT_RT5640_FALLBACK_CODEC_DEV_NAME); + put_device(codec_dev); + } + + /* fixup codec name */ + strscpy(byt_rt5640_codec_name, BYT_RT5640_FALLBACK_CODEC_DEV_NAME, + sizeof(byt_rt5640_codec_name)); + + /* bus_find_device() returns a reference no need to get() */ + priv->codec_dev = codec_dev; + } /* * swap SSP0 if bytcr is detected -- 2.43.0

2 months, 1 week

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[PATCH AUTOSEL 6.1 01/11] ASoC: Intel: bytcr_rt5640: Add support for non ACPI instantiated codec

by Sasha Levin

From: Hans de Goede <hdegoede(a)redhat.com> [ Upstream commit d48696b915527b5bcdd207a299aec03fb037eb17 ] On some x86 Bay Trail tablets which shipped with Android as factory OS, the DSDT is so broken that the codec needs to be manually instantatiated by the special x86-android-tablets.ko "fixup" driver for cases like this. This means that the codec-dev cannot be retrieved through its ACPI fwnode, add support to the bytcr_rt5640 machine driver for such manually instantiated rt5640 i2c_clients. An example of a tablet which needs this is the Vexia EDU ATLA 10 tablet, which has been distributed to schools in the Spanish Andalucía region. Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> Link: https://patch.msgid.link/20241024211615.79518-1-hdegoede@redhat.com Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/intel/boards/bytcr_rt5640.c | 33 ++++++++++++++++++++++++--- 1 file changed, 30 insertions(+), 3 deletions(-) diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index ff879e173d51d..7a57d7abd3803 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -17,6 +17,7 @@ #include <linux/acpi.h> #include <linux/clk.h> #include <linux/device.h> +#include <linux/device/bus.h> #include <linux/dmi.h> #include <linux/gpio/consumer.h> #include <linux/gpio/machine.h> @@ -32,6 +33,8 @@ #include "../atom/sst-atom-controls.h" #include "../common/soc-intel-quirks.h" +#define BYT_RT5640_FALLBACK_CODEC_DEV_NAME "i2c-rt5640" + enum { BYT_RT5640_DMIC1_MAP, BYT_RT5640_DMIC2_MAP, @@ -1687,9 +1690,33 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) codec_dev = acpi_get_first_physical_node(adev); acpi_dev_put(adev); - if (!codec_dev) - return -EPROBE_DEFER; - priv->codec_dev = get_device(codec_dev); + + if (codec_dev) { + priv->codec_dev = get_device(codec_dev); + } else { + /* + * Special case for Android tablets where the codec i2c_client + * has been manually instantiated by x86_android_tablets.ko due + * to a broken DSDT. + */ + codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL, + BYT_RT5640_FALLBACK_CODEC_DEV_NAME); + if (!codec_dev) + return -EPROBE_DEFER; + + if (!i2c_verify_client(codec_dev)) { + dev_err(dev, "Error '%s' is not an i2c_client\n", + BYT_RT5640_FALLBACK_CODEC_DEV_NAME); + put_device(codec_dev); + } + + /* fixup codec name */ + strscpy(byt_rt5640_codec_name, BYT_RT5640_FALLBACK_CODEC_DEV_NAME, + sizeof(byt_rt5640_codec_name)); + + /* bus_find_device() returns a reference no need to get() */ + priv->codec_dev = codec_dev; + } /* * swap SSP0 if bytcr is detected -- 2.43.0

2 months, 1 week

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[PATCH AUTOSEL 6.6 01/14] wifi: radiotap: Avoid -Wflex-array-member-not-at-end warnings

by Sasha Levin

From: "Gustavo A. R. Silva" <gustavoars(a)kernel.org> [ Upstream commit 57be3d3562ca4aa62b8047bc681028cc402af8ce ] -Wflex-array-member-not-at-end was introduced in GCC-14, and we are getting ready to enable it, globally. So, in order to avoid ending up with a flexible-array member in the middle of multiple other structs, we use the `__struct_group()` helper to create a new tagged `struct ieee80211_radiotap_header_fixed`. This structure groups together all the members of the flexible `struct ieee80211_radiotap_header` except the flexible array. As a result, the array is effectively separated from the rest of the members without modifying the memory layout of the flexible structure. We then change the type of the middle struct members currently causing trouble from `struct ieee80211_radiotap_header` to `struct ieee80211_radiotap_header_fixed`. We also want to ensure that in case new members need to be added to the flexible structure, they are always included within the newly created tagged struct. For this, we use `static_assert()`. This ensures that the memory layout for both the flexible structure and the new tagged struct is the same after any changes. This approach avoids having to implement `struct ieee80211_radiotap_header_fixed` as a completely separate structure, thus preventing having to maintain two independent but basically identical structures, closing the door to potential bugs in the future. So, with these changes, fix the following warnings: drivers/net/wireless/ath/wil6210/txrx.c:309:50: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/net/wireless/intel/ipw2x00/ipw2100.c:2521:50: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/net/wireless/intel/ipw2x00/ipw2200.h:1146:42: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/net/wireless/intel/ipw2x00/libipw.h:595:36: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/net/wireless/marvell/libertas/radiotap.h:34:42: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/net/wireless/marvell/libertas/radiotap.h:5:42: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/net/wireless/microchip/wilc1000/mon.c:10:42: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/net/wireless/microchip/wilc1000/mon.c:15:42: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/net/wireless/virtual/mac80211_hwsim.c:758:42: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/net/wireless/virtual/mac80211_hwsim.c:767:42: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] Signed-off-by: Gustavo A. R. Silva <gustavoars(a)kernel.org> Link: https://patch.msgid.link/ZwBMtBZKcrzwU7l4@kspp Signed-off-by: Johannes Berg <johannes.berg(a)intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/net/wireless/ath/wil6210/txrx.c | 2 +- drivers/net/wireless/intel/ipw2x00/ipw2100.c | 2 +- drivers/net/wireless/intel/ipw2x00/ipw2200.h | 2 +- .../net/wireless/marvell/libertas/radiotap.h | 4 +- drivers/net/wireless/microchip/wilc1000/mon.c | 4 +- drivers/net/wireless/virtual/mac80211_hwsim.c | 4 +- include/net/ieee80211_radiotap.h | 43 +++++++++++-------- 7 files changed, 33 insertions(+), 28 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index f29ac6de71399..19702b6f09c32 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -306,7 +306,7 @@ static void wil_rx_add_radiotap_header(struct wil6210_priv *wil, struct sk_buff *skb) { struct wil6210_rtap { - struct ieee80211_radiotap_header rthdr; + struct ieee80211_radiotap_header_fixed rthdr; /* fields should be in the order of bits in rthdr.it_present */ /* flags */ u8 flags; diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c index 0812db8936f13..9e9ff0cb724ca 100644 --- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c @@ -2520,7 +2520,7 @@ static void isr_rx_monitor(struct ipw2100_priv *priv, int i, * to build this manually element by element, we can write it much * more efficiently than we can parse it. ORDER MATTERS HERE */ struct ipw_rt_hdr { - struct ieee80211_radiotap_header rt_hdr; + struct ieee80211_radiotap_header_fixed rt_hdr; s8 rt_dbmsignal; /* signal in dbM, kluged to signed */ } *ipw_rt; diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.h b/drivers/net/wireless/intel/ipw2x00/ipw2200.h index 8ebf09121e173..226286cb7eb82 100644 --- a/drivers/net/wireless/intel/ipw2x00/ipw2200.h +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.h @@ -1143,7 +1143,7 @@ struct ipw_prom_priv { * structure is provided regardless of any bits unset. */ struct ipw_rt_hdr { - struct ieee80211_radiotap_header rt_hdr; + struct ieee80211_radiotap_header_fixed rt_hdr; u64 rt_tsf; /* TSF */ /* XXX */ u8 rt_flags; /* radiotap packet flags */ u8 rt_rate; /* rate in 500kb/s */ diff --git a/drivers/net/wireless/marvell/libertas/radiotap.h b/drivers/net/wireless/marvell/libertas/radiotap.h index 1ed5608d353ff..d543bfe739dcb 100644 --- a/drivers/net/wireless/marvell/libertas/radiotap.h +++ b/drivers/net/wireless/marvell/libertas/radiotap.h @@ -2,7 +2,7 @@ #include <net/ieee80211_radiotap.h> struct tx_radiotap_hdr { - struct ieee80211_radiotap_header hdr; + struct ieee80211_radiotap_header_fixed hdr; u8 rate; u8 txpower; u8 rts_retries; @@ -31,7 +31,7 @@ struct tx_radiotap_hdr { #define IEEE80211_FC_DSTODS 0x0300 struct rx_radiotap_hdr { - struct ieee80211_radiotap_header hdr; + struct ieee80211_radiotap_header_fixed hdr; u8 flags; u8 rate; u8 antsignal; diff --git a/drivers/net/wireless/microchip/wilc1000/mon.c b/drivers/net/wireless/microchip/wilc1000/mon.c index 03b7229a0ff5a..c3d27aaec2974 100644 --- a/drivers/net/wireless/microchip/wilc1000/mon.c +++ b/drivers/net/wireless/microchip/wilc1000/mon.c @@ -7,12 +7,12 @@ #include "cfg80211.h" struct wilc_wfi_radiotap_hdr { - struct ieee80211_radiotap_header hdr; + struct ieee80211_radiotap_header_fixed hdr; u8 rate; } __packed; struct wilc_wfi_radiotap_cb_hdr { - struct ieee80211_radiotap_header hdr; + struct ieee80211_radiotap_header_fixed hdr; u8 rate; u8 dump; u16 tx_flags; diff --git a/drivers/net/wireless/virtual/mac80211_hwsim.c b/drivers/net/wireless/virtual/mac80211_hwsim.c index 07be0adc13ec5..d86a1bd7aab08 100644 --- a/drivers/net/wireless/virtual/mac80211_hwsim.c +++ b/drivers/net/wireless/virtual/mac80211_hwsim.c @@ -736,7 +736,7 @@ static const struct rhashtable_params hwsim_rht_params = { }; struct hwsim_radiotap_hdr { - struct ieee80211_radiotap_header hdr; + struct ieee80211_radiotap_header_fixed hdr; __le64 rt_tsft; u8 rt_flags; u8 rt_rate; @@ -745,7 +745,7 @@ struct hwsim_radiotap_hdr { } __packed; struct hwsim_radiotap_ack_hdr { - struct ieee80211_radiotap_header hdr; + struct ieee80211_radiotap_header_fixed hdr; u8 rt_flags; u8 pad; __le16 rt_channel; diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h index 2338f8d2a8b33..c6cb6f6427423 100644 --- a/include/net/ieee80211_radiotap.h +++ b/include/net/ieee80211_radiotap.h @@ -24,25 +24,27 @@ * struct ieee80211_radiotap_header - base radiotap header */ struct ieee80211_radiotap_header { - /** - * @it_version: radiotap version, always 0 - */ - uint8_t it_version; - - /** - * @it_pad: padding (or alignment) - */ - uint8_t it_pad; - - /** - * @it_len: overall radiotap header length - */ - __le16 it_len; - - /** - * @it_present: (first) present word - */ - __le32 it_present; + __struct_group(ieee80211_radiotap_header_fixed, hdr, __packed, + /** + * @it_version: radiotap version, always 0 + */ + uint8_t it_version; + + /** + * @it_pad: padding (or alignment) + */ + uint8_t it_pad; + + /** + * @it_len: overall radiotap header length + */ + __le16 it_len; + + /** + * @it_present: (first) present word + */ + __le32 it_present; + ); /** * @it_optional: all remaining presence bitmaps @@ -50,6 +52,9 @@ struct ieee80211_radiotap_header { __le32 it_optional[]; } __packed; +static_assert(offsetof(struct ieee80211_radiotap_header, it_optional) == sizeof(struct ieee80211_radiotap_header_fixed), + "struct member likely outside of __struct_group()"); + /* version is always 0 */ #define PKTHDR_RADIOTAP_VERSION 0 -- 2.43.0

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[PATCH AUTOSEL 6.11 01/21] wifi: mac80211: Fix setting txpower with emulate_chanctx

by Sasha Levin

From: Ben Greear <greearb(a)candelatech.com> [ Upstream commit 8dd0498983eef524a8d104eb8abb32ec4c595bec ] Propagate hw conf into the driver when txpower changes and driver is emulating channel contexts. Signed-off-by: Ben Greear <greearb(a)candelatech.com> Link: https://patch.msgid.link/20240924011325.1509103-1-greearb@candelatech.com Signed-off-by: Johannes Berg <johannes.berg(a)intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- net/mac80211/cfg.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index b02b84ce21307..c4f4300c81c16 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3046,6 +3046,7 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy, enum nl80211_tx_power_setting txp_type = type; bool update_txp_type = false; bool has_monitor = false; + int old_power = local->user_power_level; lockdep_assert_wiphy(local->hw.wiphy); @@ -3128,6 +3129,10 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy, } } + if (local->emulate_chanctx && + (old_power != local->user_power_level)) + ieee80211_hw_conf_chan(local); + return 0; } -- 2.43.0

2 months, 1 week

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[PATCHv6, RESEND 3/4] x86/tdx: Dynamically disable SEPT violations from causing #VEs

by Kirill A. Shutemov

Memory access #VEs are hard for Linux to handle in contexts like the entry code or NMIs. But other OSes need them for functionality. There's a static (pre-guest-boot) way for a VMM to choose one or the other. But VMMs don't always know which OS they are booting, so they choose to deliver those #VEs so the "other" OSes will work. That, unfortunately has left us in the lurch and exposed to these hard-to-handle #VEs. The TDX module has introduced a new feature. Even if the static configuration is set to "send nasty #VEs", the kernel can dynamically request that they be disabled. Once they are disabled, access to private memory that is not in the Mapped state in the Secure-EPT (SEPT) will result in an exit to the VMM rather than injecting a #VE. Check if the feature is available and disable SEPT #VE if possible. If the TD is allowed to disable/enable SEPT #VEs, the ATTR_SEPT_VE_DISABLE attribute is no longer reliable. It reflects the initial state of the control for the TD, but it will not be updated if someone (e.g. bootloader) changes it before the kernel starts. Kernel must check TDCS_TD_CTLS bit to determine if SEPT #VEs are enabled or disabled. Signed-off-by: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Fixes: 373e715e31bf ("x86/tdx: Panic on bad configs that #VE on "private" memory access") Cc: stable(a)vger.kernel.org Acked-by: Kai Huang <kai.huang(a)intel.com> --- arch/x86/coco/tdx/tdx.c | 76 ++++++++++++++++++++++++------- arch/x86/include/asm/shared/tdx.h | 10 +++- 2 files changed, 69 insertions(+), 17 deletions(-) diff --git a/arch/x86/coco/tdx/tdx.c b/arch/x86/coco/tdx/tdx.c index 28b321a95a5e..a27230c44cc2 100644 --- a/arch/x86/coco/tdx/tdx.c +++ b/arch/x86/coco/tdx/tdx.c @@ -79,7 +79,7 @@ static inline void tdcall(u64 fn, struct tdx_module_args *args) } /* Read TD-scoped metadata */ -static inline u64 __maybe_unused tdg_vm_rd(u64 field, u64 *value) +static inline u64 tdg_vm_rd(u64 field, u64 *value) { struct tdx_module_args args = { .rdx = field, @@ -194,6 +194,62 @@ static void __noreturn tdx_panic(const char *msg) __tdx_hypercall(&args); } +/* + * The kernel cannot handle #VEs when accessing normal kernel memory. Ensure + * that no #VE will be delivered for accesses to TD-private memory. + * + * TDX 1.0 does not allow the guest to disable SEPT #VE on its own. The VMM + * controls if the guest will receive such #VE with TD attribute + * ATTR_SEPT_VE_DISABLE. + * + * Newer TDX modules allow the guest to control if it wants to receive SEPT + * violation #VEs. + * + * Check if the feature is available and disable SEPT #VE if possible. + * + * If the TD is allowed to disable/enable SEPT #VEs, the ATTR_SEPT_VE_DISABLE + * attribute is no longer reliable. It reflects the initial state of the + * control for the TD, but it will not be updated if someone (e.g. bootloader) + * changes it before the kernel starts. Kernel must check TDCS_TD_CTLS bit to + * determine if SEPT #VEs are enabled or disabled. + */ +static void disable_sept_ve(u64 td_attr) +{ + const char *msg = "TD misconfiguration: SEPT #VE has to be disabled"; + bool debug = td_attr & ATTR_DEBUG; + u64 config, controls; + + /* Is this TD allowed to disable SEPT #VE */ + tdg_vm_rd(TDCS_CONFIG_FLAGS, &config); + if (!(config & TDCS_CONFIG_FLEXIBLE_PENDING_VE)) { + /* No SEPT #VE controls for the guest: check the attribute */ + if (td_attr & ATTR_SEPT_VE_DISABLE) + return; + + /* Relax SEPT_VE_DISABLE check for debug TD for backtraces */ + if (debug) + pr_warn("%s\n", msg); + else + tdx_panic(msg); + return; + } + + /* Check if SEPT #VE has been disabled before us */ + tdg_vm_rd(TDCS_TD_CTLS, &controls); + if (controls & TD_CTLS_PENDING_VE_DISABLE) + return; + + /* Keep #VEs enabled for splats in debugging environments */ + if (debug) + return; + + /* Disable SEPT #VEs */ + tdg_vm_wr(TDCS_TD_CTLS, TD_CTLS_PENDING_VE_DISABLE, + TD_CTLS_PENDING_VE_DISABLE); + + return; +} + static void tdx_setup(u64 *cc_mask) { struct tdx_module_args args = {}; @@ -219,24 +275,12 @@ static void tdx_setup(u64 *cc_mask) gpa_width = args.rcx & GENMASK(5, 0); *cc_mask = BIT_ULL(gpa_width - 1); + td_attr = args.rdx; + /* Kernel does not use NOTIFY_ENABLES and does not need random #VEs */ tdg_vm_wr(TDCS_NOTIFY_ENABLES, 0, -1ULL); - /* - * The kernel can not handle #VE's when accessing normal kernel - * memory. Ensure that no #VE will be delivered for accesses to - * TD-private memory. Only VMM-shared memory (MMIO) will #VE. - */ - td_attr = args.rdx; - if (!(td_attr & ATTR_SEPT_VE_DISABLE)) { - const char *msg = "TD misconfiguration: SEPT_VE_DISABLE attribute must be set."; - - /* Relax SEPT_VE_DISABLE check for debug TD. */ - if (td_attr & ATTR_DEBUG) - pr_warn("%s\n", msg); - else - tdx_panic(msg); - } + disable_sept_ve(td_attr); } /* diff --git a/arch/x86/include/asm/shared/tdx.h b/arch/x86/include/asm/shared/tdx.h index 7e12cfa28bec..fecb2a6e864b 100644 --- a/arch/x86/include/asm/shared/tdx.h +++ b/arch/x86/include/asm/shared/tdx.h @@ -19,9 +19,17 @@ #define TDG_VM_RD 7 #define TDG_VM_WR 8 -/* TDCS fields. To be used by TDG.VM.WR and TDG.VM.RD module calls */ +/* TDX TD-Scope Metadata. To be used by TDG.VM.WR and TDG.VM.RD */ +#define TDCS_CONFIG_FLAGS 0x1110000300000016 +#define TDCS_TD_CTLS 0x1110000300000017 #define TDCS_NOTIFY_ENABLES 0x9100000000000010 +/* TDCS_CONFIG_FLAGS bits */ +#define TDCS_CONFIG_FLEXIBLE_PENDING_VE BIT_ULL(1) + +/* TDCS_TD_CTLS bits */ +#define TD_CTLS_PENDING_VE_DISABLE BIT_ULL(0) + /* TDX hypercall Leaf IDs */ #define TDVMCALL_MAP_GPA 0x10001 #define TDVMCALL_GET_QUOTE 0x10002 -- 2.45.2

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