--- /dev/null
+From 2e3a0d1bfa95b54333f7add3e50e288769373873 Mon Sep 17 00:00:00 2001
+From: Mark Brown <broonie@kernel.org>
+Date: Thu, 21 Apr 2022 13:38:01 +0100
+Subject: ASoC: meson: Fix event generation for AUI ACODEC mux
+
+From: Mark Brown <broonie@kernel.org>
+
+commit 2e3a0d1bfa95b54333f7add3e50e288769373873 upstream.
+
+The AIU ACODEC has a custom put() operation which returns 0 when the value
+of the mux changes, meaning that events are not generated for userspace.
+Change to return 1 in this case, the function returns early in the case
+where there is no change.
+
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
+Link: https://lore.kernel.org/r/20220421123803.292063-2-broonie@kernel.org
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ sound/soc/meson/aiu-acodec-ctrl.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/sound/soc/meson/aiu-acodec-ctrl.c
++++ b/sound/soc/meson/aiu-acodec-ctrl.c
+@@ -58,7 +58,7 @@ static int aiu_acodec_ctrl_mux_put_enum(
+
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
+
+- return 0;
++ return 1;
+ }
+
+ static SOC_ENUM_SINGLE_DECL(aiu_acodec_ctrl_mux_enum, AIU_ACODEC_CTRL,
--- /dev/null
+From fce49921a22262736cdc3cc74fa67915b75e9363 Mon Sep 17 00:00:00 2001
+From: Mark Brown <broonie@kernel.org>
+Date: Thu, 21 Apr 2022 13:38:02 +0100
+Subject: ASoC: meson: Fix event generation for AUI CODEC mux
+
+From: Mark Brown <broonie@kernel.org>
+
+commit fce49921a22262736cdc3cc74fa67915b75e9363 upstream.
+
+The AIU CODEC has a custom put() operation which returns 0 when the value
+of the mux changes, meaning that events are not generated for userspace.
+Change to return 1 in this case, the function returns early in the case
+where there is no change.
+
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
+Link: https://lore.kernel.org/r/20220421123803.292063-3-broonie@kernel.org
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ sound/soc/meson/aiu-codec-ctrl.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/sound/soc/meson/aiu-codec-ctrl.c
++++ b/sound/soc/meson/aiu-codec-ctrl.c
+@@ -57,7 +57,7 @@ static int aiu_codec_ctrl_mux_put_enum(s
+
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
+
+- return 0;
++ return 1;
+ }
+
+ static SOC_ENUM_SINGLE_DECL(aiu_hdmi_ctrl_mux_enum, AIU_HDMI_CLK_DATA_CTRL,
--- /dev/null
+From 12131008fc13ff7f7690d170b7a8f72d24fd7d1e Mon Sep 17 00:00:00 2001
+From: Mark Brown <broonie@kernel.org>
+Date: Thu, 21 Apr 2022 13:38:03 +0100
+Subject: ASoC: meson: Fix event generation for G12A tohdmi mux
+
+From: Mark Brown <broonie@kernel.org>
+
+commit 12131008fc13ff7f7690d170b7a8f72d24fd7d1e upstream.
+
+The G12A tohdmi has a custom put() operation which returns 0 when the value
+of the mux changes, meaning that events are not generated for userspace.
+Change to return 1 in this case, the function returns early in the case
+where there is no change.
+
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
+Link: https://lore.kernel.org/r/20220421123803.292063-4-broonie@kernel.org
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ sound/soc/meson/g12a-tohdmitx.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/sound/soc/meson/g12a-tohdmitx.c
++++ b/sound/soc/meson/g12a-tohdmitx.c
+@@ -67,7 +67,7 @@ static int g12a_tohdmitx_i2s_mux_put_enu
+
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
+
+- return 0;
++ return 1;
+ }
+
+ static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_i2s_mux_enum, TOHDMITX_CTRL0,
--- /dev/null
+From b4f5c6b2e52b27462c0599e64e96e53b58438de1 Mon Sep 17 00:00:00 2001
+From: Mark Brown <broonie@kernel.org>
+Date: Sat, 16 Apr 2022 13:54:08 +0100
+Subject: ASoC: wm8958: Fix change notifications for DSP controls
+
+From: Mark Brown <broonie@kernel.org>
+
+commit b4f5c6b2e52b27462c0599e64e96e53b58438de1 upstream.
+
+The WM8958 DSP controls all return 0 on successful write, not a boolean
+value indicating if the write changed the value of the control. Fix this
+by returning 1 after a change, there is already a check at the start of
+each put() that skips the function in the case that there is no change.
+
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
+Link: https://lore.kernel.org/r/20220416125408.197440-1-broonie@kernel.org
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ sound/soc/codecs/wm8958-dsp2.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/sound/soc/codecs/wm8958-dsp2.c
++++ b/sound/soc/codecs/wm8958-dsp2.c
+@@ -530,7 +530,7 @@ static int wm8958_mbc_put(struct snd_kco
+
+ wm8958_dsp_apply(component, mbc, wm8994->mbc_ena[mbc]);
+
+- return 0;
++ return 1;
+ }
+
+ #define WM8958_MBC_SWITCH(xname, xval) {\
+@@ -656,7 +656,7 @@ static int wm8958_vss_put(struct snd_kco
+
+ wm8958_dsp_apply(component, vss, wm8994->vss_ena[vss]);
+
+- return 0;
++ return 1;
+ }
+
+
+@@ -730,7 +730,7 @@ static int wm8958_hpf_put(struct snd_kco
+
+ wm8958_dsp_apply(component, hpf % 3, ucontrol->value.integer.value[0]);
+
+- return 0;
++ return 1;
+ }
+
+ #define WM8958_HPF_SWITCH(xname, xval) {\
+@@ -824,7 +824,7 @@ static int wm8958_enh_eq_put(struct snd_
+
+ wm8958_dsp_apply(component, eq, ucontrol->value.integer.value[0]);
+
+- return 0;
++ return 1;
+ }
+
+ #define WM8958_ENH_EQ_SWITCH(xname, xval) {\
--- /dev/null
+From 47f070a63e735bcc8d481de31be1b5a1aa62b31c Mon Sep 17 00:00:00 2001
+From: Duoming Zhou <duoming@zju.edu.cn>
+Date: Mon, 25 Apr 2022 12:24:00 +0800
+Subject: can: grcan: grcan_close(): fix deadlock
+
+From: Duoming Zhou <duoming@zju.edu.cn>
+
+commit 47f070a63e735bcc8d481de31be1b5a1aa62b31c upstream.
+
+There are deadlocks caused by del_timer_sync(&priv->hang_timer) and
+del_timer_sync(&priv->rr_timer) in grcan_close(), one of the deadlocks
+are shown below:
+
+ (Thread 1) | (Thread 2)
+ | grcan_reset_timer()
+grcan_close() | mod_timer()
+ spin_lock_irqsave() //(1) | (wait a time)
+ ... | grcan_initiate_running_reset()
+ del_timer_sync() | spin_lock_irqsave() //(2)
+ (wait timer to stop) | ...
+
+We hold priv->lock in position (1) of thread 1 and use
+del_timer_sync() to wait timer to stop, but timer handler also need
+priv->lock in position (2) of thread 2. As a result, grcan_close()
+will block forever.
+
+This patch extracts del_timer_sync() from the protection of
+spin_lock_irqsave(), which could let timer handler to obtain the
+needed lock.
+
+Link: https://lore.kernel.org/all/20220425042400.66517-1-duoming@zju.edu.cn
+Fixes: 6cec9b07fe6a ("can: grcan: Add device driver for GRCAN and GRHCAN cores")
+Cc: stable@vger.kernel.org
+Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
+Reviewed-by: Andreas Larsson <andreas@gaisler.com>
+Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/can/grcan.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/net/can/grcan.c
++++ b/drivers/net/can/grcan.c
+@@ -1113,8 +1113,10 @@ static int grcan_close(struct net_device
+
+ priv->closing = true;
+ if (priv->need_txbug_workaround) {
++ spin_unlock_irqrestore(&priv->lock, flags);
+ del_timer_sync(&priv->hang_timer);
+ del_timer_sync(&priv->rr_timer);
++ spin_lock_irqsave(&priv->lock, flags);
+ }
+ netif_stop_queue(dev);
+ grcan_stop_hardware(dev);
--- /dev/null
+From 1e93ed26acf03fe6c97c6d573a10178596aadd43 Mon Sep 17 00:00:00 2001
+From: Andreas Larsson <andreas@gaisler.com>
+Date: Fri, 29 Apr 2022 10:46:55 +0200
+Subject: can: grcan: grcan_probe(): fix broken system id check for errata workaround needs
+
+From: Andreas Larsson <andreas@gaisler.com>
+
+commit 1e93ed26acf03fe6c97c6d573a10178596aadd43 upstream.
+
+The systemid property was checked for in the wrong place of the device
+tree and compared to the wrong value.
+
+Fixes: 6cec9b07fe6a ("can: grcan: Add device driver for GRCAN and GRHCAN cores")
+Link: https://lore.kernel.org/all/20220429084656.29788-3-andreas@gaisler.com
+Cc: stable@vger.kernel.org
+Signed-off-by: Andreas Larsson <andreas@gaisler.com>
+Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/can/grcan.c | 16 +++++++++++-----
+ 1 file changed, 11 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/can/grcan.c
++++ b/drivers/net/can/grcan.c
+@@ -241,7 +241,7 @@ struct grcan_device_config {
+ .rxsize = GRCAN_DEFAULT_BUFFER_SIZE, \
+ }
+
+-#define GRCAN_TXBUG_SAFE_GRLIB_VERSION 0x4100
++#define GRCAN_TXBUG_SAFE_GRLIB_VERSION 4100
+ #define GRLIB_VERSION_MASK 0xffff
+
+ /* GRCAN private data structure */
+@@ -1656,6 +1656,7 @@ exit_free_candev:
+ static int grcan_probe(struct platform_device *ofdev)
+ {
+ struct device_node *np = ofdev->dev.of_node;
++ struct device_node *sysid_parent;
+ u32 sysid, ambafreq;
+ int irq, err;
+ void __iomem *base;
+@@ -1664,10 +1665,15 @@ static int grcan_probe(struct platform_d
+ /* Compare GRLIB version number with the first that does not
+ * have the tx bug (see start_xmit)
+ */
+- err = of_property_read_u32(np, "systemid", &sysid);
+- if (!err && ((sysid & GRLIB_VERSION_MASK)
+- >= GRCAN_TXBUG_SAFE_GRLIB_VERSION))
+- txbug = false;
++ sysid_parent = of_find_node_by_path("/ambapp0");
++ if (sysid_parent) {
++ of_node_get(sysid_parent);
++ err = of_property_read_u32(sysid_parent, "systemid", &sysid);
++ if (!err && ((sysid & GRLIB_VERSION_MASK) >=
++ GRCAN_TXBUG_SAFE_GRLIB_VERSION))
++ txbug = false;
++ of_node_put(sysid_parent);
++ }
+
+ err = of_property_read_u32(np, "freq", &ambafreq);
+ if (err) {
--- /dev/null
+From 2873d4d52f7c52d60b316ba6c47bd7122b5a9861 Mon Sep 17 00:00:00 2001
+From: Andreas Larsson <andreas@gaisler.com>
+Date: Fri, 29 Apr 2022 10:46:56 +0200
+Subject: can: grcan: only use the NAPI poll budget for RX
+
+From: Andreas Larsson <andreas@gaisler.com>
+
+commit 2873d4d52f7c52d60b316ba6c47bd7122b5a9861 upstream.
+
+The previous split budget between TX and RX made it return not using
+the entire budget but at the same time not having calling called
+napi_complete. This sometimes led to the poll to not be called, and at
+the same time having TX and RX interrupts disabled resulting in the
+driver getting stuck.
+
+Fixes: 6cec9b07fe6a ("can: grcan: Add device driver for GRCAN and GRHCAN cores")
+Link: https://lore.kernel.org/all/20220429084656.29788-4-andreas@gaisler.com
+Cc: stable@vger.kernel.org
+Signed-off-by: Andreas Larsson <andreas@gaisler.com>
+Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/can/grcan.c | 22 +++++++---------------
+ 1 file changed, 7 insertions(+), 15 deletions(-)
+
+--- a/drivers/net/can/grcan.c
++++ b/drivers/net/can/grcan.c
+@@ -1137,7 +1137,7 @@ static int grcan_close(struct net_device
+ return 0;
+ }
+
+-static int grcan_transmit_catch_up(struct net_device *dev, int budget)
++static void grcan_transmit_catch_up(struct net_device *dev)
+ {
+ struct grcan_priv *priv = netdev_priv(dev);
+ unsigned long flags;
+@@ -1145,7 +1145,7 @@ static int grcan_transmit_catch_up(struc
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+- work_done = catch_up_echo_skb(dev, budget, true);
++ work_done = catch_up_echo_skb(dev, -1, true);
+ if (work_done) {
+ if (!priv->resetting && !priv->closing &&
+ !(priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY))
+@@ -1159,8 +1159,6 @@ static int grcan_transmit_catch_up(struc
+ }
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+-
+- return work_done;
+ }
+
+ static int grcan_receive(struct net_device *dev, int budget)
+@@ -1242,19 +1240,13 @@ static int grcan_poll(struct napi_struct
+ struct net_device *dev = priv->dev;
+ struct grcan_registers __iomem *regs = priv->regs;
+ unsigned long flags;
+- int tx_work_done, rx_work_done;
+- int rx_budget = budget / 2;
+- int tx_budget = budget - rx_budget;
++ int work_done;
+
+- /* Half of the budget for receiving messages */
+- rx_work_done = grcan_receive(dev, rx_budget);
++ work_done = grcan_receive(dev, budget);
+
+- /* Half of the budget for transmitting messages as that can trigger echo
+- * frames being received
+- */
+- tx_work_done = grcan_transmit_catch_up(dev, tx_budget);
++ grcan_transmit_catch_up(dev);
+
+- if (rx_work_done < rx_budget && tx_work_done < tx_budget) {
++ if (work_done < budget) {
+ napi_complete(napi);
+
+ /* Guarantee no interference with a running reset that otherwise
+@@ -1271,7 +1263,7 @@ static int grcan_poll(struct napi_struct
+ spin_unlock_irqrestore(&priv->lock, flags);
+ }
+
+- return rx_work_done + tx_work_done;
++ return work_done;
+ }
+
+ /* Work tx bug by waiting while for the risky situation to clear. If that fails,
--- /dev/null
+From 101da4268626b00d16356a6bf284d66e44c46ff9 Mon Sep 17 00:00:00 2001
+From: Daniel Hellstrom <daniel@gaisler.com>
+Date: Fri, 29 Apr 2022 10:46:54 +0200
+Subject: can: grcan: use ofdev->dev when allocating DMA memory
+
+From: Daniel Hellstrom <daniel@gaisler.com>
+
+commit 101da4268626b00d16356a6bf284d66e44c46ff9 upstream.
+
+Use the device of the device tree node should be rather than the
+device of the struct net_device when allocating DMA buffers.
+
+The driver got away with it on sparc32 until commit 53b7670e5735
+("sparc: factor the dma coherent mapping into helper") after which the
+driver oopses.
+
+Fixes: 6cec9b07fe6a ("can: grcan: Add device driver for GRCAN and GRHCAN cores")
+Link: https://lore.kernel.org/all/20220429084656.29788-2-andreas@gaisler.com
+Cc: stable@vger.kernel.org
+Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
+Signed-off-by: Andreas Larsson <andreas@gaisler.com>
+Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/can/grcan.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/can/grcan.c
++++ b/drivers/net/can/grcan.c
+@@ -248,6 +248,7 @@ struct grcan_device_config {
+ struct grcan_priv {
+ struct can_priv can; /* must be the first member */
+ struct net_device *dev;
++ struct device *ofdev_dev;
+ struct napi_struct napi;
+
+ struct grcan_registers __iomem *regs; /* ioremap'ed registers */
+@@ -924,7 +925,7 @@ static void grcan_free_dma_buffers(struc
+ struct grcan_priv *priv = netdev_priv(dev);
+ struct grcan_dma *dma = &priv->dma;
+
+- dma_free_coherent(&dev->dev, dma->base_size, dma->base_buf,
++ dma_free_coherent(priv->ofdev_dev, dma->base_size, dma->base_buf,
+ dma->base_handle);
+ memset(dma, 0, sizeof(*dma));
+ }
+@@ -949,7 +950,7 @@ static int grcan_allocate_dma_buffers(st
+
+ /* Extra GRCAN_BUFFER_ALIGNMENT to allow for alignment */
+ dma->base_size = lsize + ssize + GRCAN_BUFFER_ALIGNMENT;
+- dma->base_buf = dma_alloc_coherent(&dev->dev,
++ dma->base_buf = dma_alloc_coherent(priv->ofdev_dev,
+ dma->base_size,
+ &dma->base_handle,
+ GFP_KERNEL);
+@@ -1602,6 +1603,7 @@ static int grcan_setup_netdev(struct pla
+ memcpy(&priv->config, &grcan_module_config,
+ sizeof(struct grcan_device_config));
+ priv->dev = dev;
++ priv->ofdev_dev = &ofdev->dev;
+ priv->regs = base;
+ priv->can.bittiming_const = &grcan_bittiming_const;
+ priv->can.do_set_bittiming = grcan_set_bittiming;
--- /dev/null
+From 72ed3ee9fa0b461ad086403a8b5336154bd82234 Mon Sep 17 00:00:00 2001
+From: Oliver Hartkopp <socketcan@hartkopp.net>
+Date: Fri, 22 Apr 2022 10:23:37 +0200
+Subject: can: isotp: remove re-binding of bound socket
+
+From: Oliver Hartkopp <socketcan@hartkopp.net>
+
+commit 72ed3ee9fa0b461ad086403a8b5336154bd82234 upstream.
+
+As a carry over from the CAN_RAW socket (which allows to change the CAN
+interface while mantaining the filter setup) the re-binding of the
+CAN_ISOTP socket needs to take care about CAN ID address information and
+subscriptions. It turned out that this feature is so limited (e.g. the
+sockopts remain fix) that it finally has never been needed/used.
+
+In opposite to the stateless CAN_RAW socket the switching of the CAN ID
+subscriptions might additionally lead to an interrupted ongoing PDU
+reception. So better remove this unneeded complexity.
+
+Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
+Link: https://lore.kernel.org/all/20220422082337.1676-1-socketcan@hartkopp.net
+Cc: stable@vger.kernel.org
+Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
+Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/can/isotp.c | 22 +++++-----------------
+ 1 file changed, 5 insertions(+), 17 deletions(-)
+
+--- a/net/can/isotp.c
++++ b/net/can/isotp.c
+@@ -1146,6 +1146,11 @@ static int isotp_bind(struct socket *soc
+
+ lock_sock(sk);
+
++ if (so->bound) {
++ err = -EINVAL;
++ goto out;
++ }
++
+ /* do not register frame reception for functional addressing */
+ if (so->opt.flags & CAN_ISOTP_SF_BROADCAST)
+ do_rx_reg = 0;
+@@ -1156,10 +1161,6 @@ static int isotp_bind(struct socket *soc
+ goto out;
+ }
+
+- if (so->bound && addr->can_ifindex == so->ifindex &&
+- rx_id == so->rxid && tx_id == so->txid)
+- goto out;
+-
+ dev = dev_get_by_index(net, addr->can_ifindex);
+ if (!dev) {
+ err = -ENODEV;
+@@ -1186,19 +1187,6 @@ static int isotp_bind(struct socket *soc
+
+ dev_put(dev);
+
+- if (so->bound && do_rx_reg) {
+- /* unregister old filter */
+- if (so->ifindex) {
+- dev = dev_get_by_index(net, so->ifindex);
+- if (dev) {
+- can_rx_unregister(net, dev, so->rxid,
+- SINGLE_MASK(so->rxid),
+- isotp_rcv, sk);
+- dev_put(dev);
+- }
+- }
+- }
+-
+ /* switch to new settings */
+ so->ifindex = ifindex;
+ so->rxid = rx_id;
--- /dev/null
+From 5b53a405e4658580e1faf7c217db3f55a21ba849 Mon Sep 17 00:00:00 2001
+From: Stefan Haberland <sth@linux.ibm.com>
+Date: Thu, 5 May 2022 16:17:29 +0200
+Subject: s390/dasd: fix data corruption for ESE devices
+
+From: Stefan Haberland <sth@linux.ibm.com>
+
+commit 5b53a405e4658580e1faf7c217db3f55a21ba849 upstream.
+
+For ESE devices we get an error when accessing an unformatted track.
+The handling of this error will return zero data for read requests and
+format the track on demand before writing to it. To do this the code needs
+to distinguish between read and write requests. This is done with data from
+the blocklayer request. A pointer to the blocklayer request is stored in
+the CQR.
+
+If there is an error on the device an ERP request is built to do error
+recovery. While the ERP request is mostly a copy of the original CQR the
+pointer to the blocklayer request is not copied to not accidentally pass
+it back to the blocklayer without cleanup.
+
+This leads to the error that during ESE handling after an ERP request was
+built it is not possible to determine the IO direction. This leads to the
+formatting of a track for read requests which might in turn lead to data
+corruption.
+
+Fixes: 5e2b17e712cf ("s390/dasd: Add dynamic formatting support for ESE volumes")
+Cc: stable@vger.kernel.org # 5.3+
+Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
+Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
+Link: https://lore.kernel.org/r/20220505141733.1989450-2-sth@linux.ibm.com
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/s390/block/dasd.c | 8 +++++++-
+ drivers/s390/block/dasd_eckd.c | 2 +-
+ drivers/s390/block/dasd_int.h | 12 ++++++++++++
+ 3 files changed, 20 insertions(+), 2 deletions(-)
+
+--- a/drivers/s390/block/dasd.c
++++ b/drivers/s390/block/dasd.c
+@@ -1639,6 +1639,7 @@ void dasd_int_handler(struct ccw_device
+ unsigned long now;
+ int nrf_suppressed = 0;
+ int fp_suppressed = 0;
++ struct request *req;
+ u8 *sense = NULL;
+ int expires;
+
+@@ -1739,7 +1740,12 @@ void dasd_int_handler(struct ccw_device
+ }
+
+ if (dasd_ese_needs_format(cqr->block, irb)) {
+- if (rq_data_dir((struct request *)cqr->callback_data) == READ) {
++ req = dasd_get_callback_data(cqr);
++ if (!req) {
++ cqr->status = DASD_CQR_ERROR;
++ return;
++ }
++ if (rq_data_dir(req) == READ) {
+ device->discipline->ese_read(cqr, irb);
+ cqr->status = DASD_CQR_SUCCESS;
+ cqr->stopclk = now;
+--- a/drivers/s390/block/dasd_eckd.c
++++ b/drivers/s390/block/dasd_eckd.c
+@@ -3157,7 +3157,7 @@ dasd_eckd_ese_format(struct dasd_device
+ sector_t curr_trk;
+ int rc;
+
+- req = cqr->callback_data;
++ req = dasd_get_callback_data(cqr);
+ block = cqr->block;
+ base = block->base;
+ private = base->private;
+--- a/drivers/s390/block/dasd_int.h
++++ b/drivers/s390/block/dasd_int.h
+@@ -757,6 +757,18 @@ dasd_check_blocksize(int bsize)
+ return 0;
+ }
+
++/*
++ * return the callback data of the original request in case there are
++ * ERP requests build on top of it
++ */
++static inline void *dasd_get_callback_data(struct dasd_ccw_req *cqr)
++{
++ while (cqr->refers)
++ cqr = cqr->refers;
++
++ return cqr->callback_data;
++}
++
+ /* externals in dasd.c */
+ #define DASD_PROFILE_OFF 0
+ #define DASD_PROFILE_ON 1
--- /dev/null
+From cd68c48ea15c85f1577a442dc4c285e112ff1b37 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jan=20H=C3=B6ppner?= <hoeppner@linux.ibm.com>
+Date: Thu, 5 May 2022 16:17:31 +0200
+Subject: s390/dasd: Fix read for ESE with blksize < 4k
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Jan Höppner <hoeppner@linux.ibm.com>
+
+commit cd68c48ea15c85f1577a442dc4c285e112ff1b37 upstream.
+
+When reading unformatted tracks on ESE devices, the corresponding memory
+areas are simply set to zero for each segment. This is done incorrectly
+for blocksizes < 4096.
+
+There are two problems. First, the increment of dst is done using the
+counter of the loop (off), which is increased by blksize every
+iteration. This leads to a much bigger increment for dst as actually
+intended. Second, the increment of dst is done before the memory area
+is set to 0, skipping a significant amount of bytes of memory.
+
+This leads to illegal overwriting of memory and ultimately to a kernel
+panic.
+
+This is not a problem with 4k blocksize because
+blk_queue_max_segment_size is set to PAGE_SIZE, always resulting in a
+single iteration for the inner segment loop (bv.bv_len == blksize). The
+incorrectly used 'off' value to increment dst is 0 and the correct
+memory area is used.
+
+In order to fix this for blksize < 4k, increment dst correctly using the
+blksize and only do it at the end of the loop.
+
+Fixes: 5e2b17e712cf ("s390/dasd: Add dynamic formatting support for ESE volumes")
+Cc: stable@vger.kernel.org # v5.3+
+Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
+Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
+Link: https://lore.kernel.org/r/20220505141733.1989450-4-sth@linux.ibm.com
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/s390/block/dasd_eckd.c | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+--- a/drivers/s390/block/dasd_eckd.c
++++ b/drivers/s390/block/dasd_eckd.c
+@@ -3297,12 +3297,11 @@ static int dasd_eckd_ese_read(struct das
+ cqr->proc_bytes = blk_count * blksize;
+ return 0;
+ }
+- if (dst && !skip_block) {
+- dst += off;
++ if (dst && !skip_block)
+ memset(dst, 0, blksize);
+- } else {
++ else
+ skip_block--;
+- }
++ dst += blksize;
+ blk_count++;
+ }
+ }
--- /dev/null
+From b9c10f68e23c13f56685559a0d6fdaca9f838324 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jan=20H=C3=B6ppner?= <hoeppner@linux.ibm.com>
+Date: Thu, 5 May 2022 16:17:32 +0200
+Subject: s390/dasd: Fix read inconsistency for ESE DASD devices
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Jan Höppner <hoeppner@linux.ibm.com>
+
+commit b9c10f68e23c13f56685559a0d6fdaca9f838324 upstream.
+
+Read requests that return with NRF error are partially completed in
+dasd_eckd_ese_read(). The function keeps track of the amount of
+processed bytes and the driver will eventually return this information
+back to the block layer for further processing via __dasd_cleanup_cqr()
+when the request is in the final stage of processing (from the driver's
+perspective).
+
+For this, blk_update_request() is used which requires the number of
+bytes to complete the request. As per documentation the nr_bytes
+parameter is described as follows:
+ "number of bytes to complete for @req".
+
+This was mistakenly interpreted as "number of bytes _left_ for @req"
+leading to new requests with incorrect data length. The consequence are
+inconsistent and completely wrong read requests as data from random
+memory areas are read back.
+
+Fix this by correctly specifying the amount of bytes that should be used
+to complete the request.
+
+Fixes: 5e6bdd37c552 ("s390/dasd: fix data corruption for thin provisioned devices")
+Cc: stable@vger.kernel.org # 5.3+
+Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
+Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
+Link: https://lore.kernel.org/r/20220505141733.1989450-5-sth@linux.ibm.com
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/s390/block/dasd.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/drivers/s390/block/dasd.c
++++ b/drivers/s390/block/dasd.c
+@@ -2775,8 +2775,7 @@ static void __dasd_cleanup_cqr(struct da
+ * complete a request partially.
+ */
+ if (proc_bytes) {
+- blk_update_request(req, BLK_STS_OK,
+- blk_rq_bytes(req) - proc_bytes);
++ blk_update_request(req, BLK_STS_OK, proc_bytes);
+ blk_mq_requeue_request(req, true);
+ } else if (likely(!blk_should_fake_timeout(req->q))) {
+ blk_mq_complete_request(req);
--- /dev/null
+From 71f3871657370dbbaf942a1c758f64e49a36c70f Mon Sep 17 00:00:00 2001
+From: Stefan Haberland <sth@linux.ibm.com>
+Date: Thu, 5 May 2022 16:17:30 +0200
+Subject: s390/dasd: prevent double format of tracks for ESE devices
+
+From: Stefan Haberland <sth@linux.ibm.com>
+
+commit 71f3871657370dbbaf942a1c758f64e49a36c70f upstream.
+
+For ESE devices we get an error for write operations on an unformatted
+track. Afterwards the track will be formatted and the IO operation
+restarted.
+When using alias devices a track might be accessed by multiple requests
+simultaneously and there is a race window that a track gets formatted
+twice resulting in data loss.
+
+Prevent this by remembering the amount of formatted tracks when starting
+a request and comparing this number before actually formatting a track
+on the fly. If the number has changed there is a chance that the current
+track was finally formatted in between. As a result do not format the
+track and restart the current IO to check.
+
+The number of formatted tracks does not match the overall number of
+formatted tracks on the device and it might wrap around but this is no
+problem. It is only needed to recognize that a track has been formatted at
+all in between.
+
+Fixes: 5e2b17e712cf ("s390/dasd: Add dynamic formatting support for ESE volumes")
+Cc: stable@vger.kernel.org # 5.3+
+Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
+Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
+Link: https://lore.kernel.org/r/20220505141733.1989450-3-sth@linux.ibm.com
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/s390/block/dasd.c | 7 +++++++
+ drivers/s390/block/dasd_eckd.c | 19 +++++++++++++++++--
+ drivers/s390/block/dasd_int.h | 2 ++
+ 3 files changed, 26 insertions(+), 2 deletions(-)
+
+--- a/drivers/s390/block/dasd.c
++++ b/drivers/s390/block/dasd.c
+@@ -1422,6 +1422,13 @@ int dasd_start_IO(struct dasd_ccw_req *c
+ if (!cqr->lpm)
+ cqr->lpm = dasd_path_get_opm(device);
+ }
++ /*
++ * remember the amount of formatted tracks to prevent double format on
++ * ESE devices
++ */
++ if (cqr->block)
++ cqr->trkcount = atomic_read(&cqr->block->trkcount);
++
+ if (cqr->cpmode == 1) {
+ rc = ccw_device_tm_start(device->cdev, cqr->cpaddr,
+ (long) cqr, cqr->lpm);
+--- a/drivers/s390/block/dasd_eckd.c
++++ b/drivers/s390/block/dasd_eckd.c
+@@ -3095,13 +3095,24 @@ static int dasd_eckd_format_device(struc
+ }
+
+ static bool test_and_set_format_track(struct dasd_format_entry *to_format,
+- struct dasd_block *block)
++ struct dasd_ccw_req *cqr)
+ {
++ struct dasd_block *block = cqr->block;
+ struct dasd_format_entry *format;
+ unsigned long flags;
+ bool rc = false;
+
+ spin_lock_irqsave(&block->format_lock, flags);
++ if (cqr->trkcount != atomic_read(&block->trkcount)) {
++ /*
++ * The number of formatted tracks has changed after request
++ * start and we can not tell if the current track was involved.
++ * To avoid data corruption treat it as if the current track is
++ * involved
++ */
++ rc = true;
++ goto out;
++ }
+ list_for_each_entry(format, &block->format_list, list) {
+ if (format->track == to_format->track) {
+ rc = true;
+@@ -3121,6 +3132,7 @@ static void clear_format_track(struct da
+ unsigned long flags;
+
+ spin_lock_irqsave(&block->format_lock, flags);
++ atomic_inc(&block->trkcount);
+ list_del_init(&format->list);
+ spin_unlock_irqrestore(&block->format_lock, flags);
+ }
+@@ -3182,8 +3194,11 @@ dasd_eckd_ese_format(struct dasd_device
+ }
+ format->track = curr_trk;
+ /* test if track is already in formatting by another thread */
+- if (test_and_set_format_track(format, block))
++ if (test_and_set_format_track(format, cqr)) {
++ /* this is no real error so do not count down retries */
++ cqr->retries++;
+ return ERR_PTR(-EEXIST);
++ }
+
+ fdata.start_unit = curr_trk;
+ fdata.stop_unit = curr_trk;
+--- a/drivers/s390/block/dasd_int.h
++++ b/drivers/s390/block/dasd_int.h
+@@ -188,6 +188,7 @@ struct dasd_ccw_req {
+ void (*callback)(struct dasd_ccw_req *, void *data);
+ void *callback_data;
+ unsigned int proc_bytes; /* bytes for partial completion */
++ unsigned int trkcount; /* count formatted tracks */
+ };
+
+ /*
+@@ -611,6 +612,7 @@ struct dasd_block {
+
+ struct list_head format_list;
+ spinlock_t format_lock;
++ atomic_t trkcount;
+ };
+
+ struct dasd_attention_data {
net-stmmac-disable-split-header-sph-for-intel-platforms.patch
genirq-synchronize-interrupt-thread-startup.patch
asoc-da7219-fix-change-notifications-for-tone-generator-frequency.patch
+asoc-wm8958-fix-change-notifications-for-dsp-controls.patch
+asoc-meson-fix-event-generation-for-aui-acodec-mux.patch
+asoc-meson-fix-event-generation-for-g12a-tohdmi-mux.patch
+asoc-meson-fix-event-generation-for-aui-codec-mux.patch
+s390-dasd-fix-data-corruption-for-ese-devices.patch
+s390-dasd-prevent-double-format-of-tracks-for-ese-devices.patch
+s390-dasd-fix-read-for-ese-with-blksize-4k.patch
+s390-dasd-fix-read-inconsistency-for-ese-dasd-devices.patch
+can-grcan-grcan_close-fix-deadlock.patch
+can-isotp-remove-re-binding-of-bound-socket.patch
+can-grcan-use-ofdev-dev-when-allocating-dma-memory.patch
+can-grcan-grcan_probe-fix-broken-system-id-check-for-errata-workaround-needs.patch
+can-grcan-only-use-the-napi-poll-budget-for-rx.patch
btrfs-do-not-bug_on-on-failure-to-update-inode-when-setting-xattr.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
