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ODROID: Update kernel 5.9.6 (#976)

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The CDC ACM cooldown fix is now part of upstream Linux, so we can drop
our patch.
This commit is contained in:
Stefan Agner 2020-11-10 14:25:39 +01:00 committed by GitHub
parent fe9fc1cbd2
commit 6bc6300149
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 8 additions and 134 deletions
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8
Documentation/kernel.md
View File

@ -12,8 +12,8 @@ Default Kernel tree: 5.4
| Raspberry Pi 3 | 4.19.127 |
| Raspberry Pi 4 | 4.19.127 |
| Tinker Board | 5.4.63 |
| Odroid-C2 | 5.9.1 |
| Odroid-C4 | 5.9.1 |
| Odroid-N2 | 5.9.1 |
| Odroid-XU4 | 5.9.1 |
| Odroid-C2 | 5.9.6 |
| Odroid-C4 | 5.9.6 |
| Odroid-N2 | 5.9.6 |
| Odroid-XU4 | 5.9.6 |
| Intel NUC | 5.4.63 |

126
buildroot-external/board/hardkernel/patches/linux/0007-usb-cdc-acm-fix-cooldown-mechanism.patch
View File

@ -1,126 +0,0 @@
From 2c5d0244cbd6727f0e56bd6607b3a1b18ce27a3e Mon Sep 17 00:00:00 2001
Message-Id: <2c5d0244cbd6727f0e56bd6607b3a1b18ce27a3e.1603528796.git.stefan@agner.ch>
In-Reply-To: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
References: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
From: Jerome Brunet <jbrunet@baylibre.com>
Date: Mon, 19 Oct 2020 19:07:02 +0200
Subject: [PATCH 7/7] usb: cdc-acm: fix cooldown mechanism
Commit a4e7279cd1d1 ("cdc-acm: introduce a cool down") is causing
regression if there is some USB error, such as -EPROTO.
This has been reported on some samples of the Odroid-N2 using the Combee II
Zibgee USB dongle.
> struct acm *acm = container_of(work, struct acm, work)
is incorrect in case of a delayed work and causes warnings, usually from
the workqueue:
> WARNING: CPU: 0 PID: 0 at kernel/workqueue.c:1474 __queue_work+0x480/0x528.
When this happens, USB eventually stops working completely after a while.
Also the ACM_ERROR_DELAY bit is never set, so the cooldown mechanism
previously introduced cannot be triggered and acm_submit_read_urb() is
never called.
This changes makes the cdc-acm driver use a single delayed work, fixing the
pointer arithmetic in acm_softint() and set the ACM_ERROR_DELAY when the
cooldown mechanism appear to be needed.
Fixes: a4e7279cd1d1 ("cdc-acm: introduce a cool down")
Reported-by: Pascal Vizeli <pascal.vizeli@nabucasa.com>
Cc: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
drivers/usb/class/cdc-acm.c | 12 +++++-------
drivers/usb/class/cdc-acm.h | 3 +--
2 files changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 7f6f3ab5b8a6..8f087499196a 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -507,6 +507,7 @@ static void acm_read_bulk_callback(struct urb *urb)
"%s - cooling babbling device\n", __func__);
usb_mark_last_busy(acm->dev);
set_bit(rb->index, &acm->urbs_in_error_delay);
+ set_bit(ACM_ERROR_DELAY, &acm->flags);
cooldown = true;
break;
default:
@@ -532,7 +533,7 @@ static void acm_read_bulk_callback(struct urb *urb)
if (stopped || stalled || cooldown) {
if (stalled)
- schedule_work(&acm->work);
+ schedule_delayed_work(&acm->dwork, 0);
else if (cooldown)
schedule_delayed_work(&acm->dwork, HZ / 2);
return;
@@ -562,13 +563,13 @@ static void acm_write_bulk(struct urb *urb)
acm_write_done(acm, wb);
spin_unlock_irqrestore(&acm->write_lock, flags);
set_bit(EVENT_TTY_WAKEUP, &acm->flags);
- schedule_work(&acm->work);
+ schedule_delayed_work(&acm->dwork, 0);
}
static void acm_softint(struct work_struct *work)
{
int i;
- struct acm *acm = container_of(work, struct acm, work);
+ struct acm *acm = container_of(work, struct acm, dwork.work);
if (test_bit(EVENT_RX_STALL, &acm->flags)) {
smp_mb(); /* against acm_suspend() */
@@ -584,7 +585,7 @@ static void acm_softint(struct work_struct *work)
if (test_and_clear_bit(ACM_ERROR_DELAY, &acm->flags)) {
for (i = 0; i < acm->rx_buflimit; i++)
if (test_and_clear_bit(i, &acm->urbs_in_error_delay))
- acm_submit_read_urb(acm, i, GFP_NOIO);
+ acm_submit_read_urb(acm, i, GFP_KERNEL);
}
if (test_and_clear_bit(EVENT_TTY_WAKEUP, &acm->flags))
@@ -1352,7 +1353,6 @@ static int acm_probe(struct usb_interface *intf,
acm->ctrlsize = ctrlsize;
acm->readsize = readsize;
acm->rx_buflimit = num_rx_buf;
- INIT_WORK(&acm->work, acm_softint);
INIT_DELAYED_WORK(&acm->dwork, acm_softint);
init_waitqueue_head(&acm->wioctl);
spin_lock_init(&acm->write_lock);
@@ -1562,7 +1562,6 @@ static void acm_disconnect(struct usb_interface *intf)
}
acm_kill_urbs(acm);
- cancel_work_sync(&acm->work);
cancel_delayed_work_sync(&acm->dwork);
tty_unregister_device(acm_tty_driver, acm->minor);
@@ -1605,7 +1604,6 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message)
return 0;
acm_kill_urbs(acm);
- cancel_work_sync(&acm->work);
cancel_delayed_work_sync(&acm->dwork);
acm->urbs_in_error_delay = 0;
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index cd5e9d8ab237..b95ff769072e 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -112,8 +112,7 @@ struct acm {
# define ACM_ERROR_DELAY 3
unsigned long urbs_in_error_delay; /* these need to be restarted after a delay */
struct usb_cdc_line_coding line; /* bits, stop, parity */
- struct work_struct work; /* work queue entry for various purposes*/
- struct delayed_work dwork; /* for cool downs needed in error recovery */
+ struct delayed_work dwork; /* work queue entry for various purposes */
unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */
unsigned int ctrlout; /* output control lines (DTR, RTS) */
struct async_icount iocount; /* counters for control line changes */
--
2.28.0

2
buildroot-external/configs/odroid_c2_defconfig
View File

@ -22,7 +22,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_HASSOS_PATH)/scripts/post-image.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-c2 $(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-c2/hassos-hook.sh"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.9.1"
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.9.6"
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/kernel-amlogic.config"
BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_HASSOS_PATH)/kernel/hassos.config $(BR2_EXTERNAL_HASSOS_PATH)/kernel/docker.config $(BR2_EXTERNAL_HASSOS_PATH)/kernel/device-support.config"

2
buildroot-external/configs/odroid_c4_defconfig
View File

@ -22,7 +22,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_HASSOS_PATH)/scripts/post-image.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-c4 $(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-c4/hassos-hook.sh"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.9.1"
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.9.6"
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/kernel-amlogic.config"
BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_HASSOS_PATH)/kernel/hassos.config $(BR2_EXTERNAL_HASSOS_PATH)/kernel/docker.config $(BR2_EXTERNAL_HASSOS_PATH)/kernel/device-support.config"

2
buildroot-external/configs/odroid_n2_defconfig
View File

@ -22,7 +22,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_HASSOS_PATH)/scripts/post-image.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-n2 $(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-n2/hassos-hook.sh"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.9.1"
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.9.6"
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/kernel-amlogic.config"
BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_HASSOS_PATH)/kernel/hassos.config $(BR2_EXTERNAL_HASSOS_PATH)/kernel/docker.config $(BR2_EXTERNAL_HASSOS_PATH)/kernel/device-support.config $(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-n2/kernel.config"

2
buildroot-external/configs/odroid_xu4_defconfig
View File

@ -23,7 +23,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_HASSOS_PATH)/scripts/post-image.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-xu4 $(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-xu4/hassos-hook.sh"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.9.1"
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.9.6"
BR2_LINUX_KERNEL_DEFCONFIG="exynos"
BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_HASSOS_PATH)/kernel/hassos.config $(BR2_EXTERNAL_HASSOS_PATH)/kernel/docker.config $(BR2_EXTERNAL_HASSOS_PATH)/kernel/device-support.config"
BR2_LINUX_KERNEL_LZ4=y