diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig index 0840d27381ea..73aba9a31064 100644 --- a/drivers/tty/Kconfig +++ b/drivers/tty/Kconfig @@ -75,6 +75,19 @@ config VT_CONSOLE_SLEEP def_bool y depends on VT_CONSOLE && PM_SLEEP +config NR_TTY_DEVICES + int "Maximum tty device number" + depends on VT + range 12 63 + default 63 + help + This option is used to change the number of tty devices in /dev. + The default value is 63. The lowest number you can set is 12, + 63 is also the upper limit so we don't overrun the serial + consoles. + + If unsure, say 63. + config HW_CONSOLE bool depends on VT && !UML diff --git a/include/uapi/linux/vt.h b/include/uapi/linux/vt.h index e9d39c48520a..3bceead8da40 100644 --- a/include/uapi/linux/vt.h +++ b/include/uapi/linux/vt.h @@ -3,12 +3,25 @@ #define _UAPI_LINUX_VT_H +/* + * We will make this definition solely for the purpose of making packages + * such as splashutils build, because they can not understand that + * NR_TTY_DEVICES is defined in the kernel configuration. + */ +#ifndef CONFIG_NR_TTY_DEVICES +#define CONFIG_NR_TTY_DEVICES 63 +#endif + /* * These constants are also useful for user-level apps (e.g., VC * resizing). */ #define MIN_NR_CONSOLES 1 /* must be at least 1 */ -#define MAX_NR_CONSOLES 63 /* serial lines start at 64 */ +/* + * NR_TTY_DEVICES: + * Value MUST be at least 12 and must never be higher then 63 + */ +#define MAX_NR_CONSOLES CONFIG_NR_TTY_DEVICES /* serial lines start above this */ /* Note: the ioctl VT_GETSTATE does not work for consoles 16 and higher (since it returns a short) */ From 0438f3011663ce01a981bb8b3af0e84e73551ecf Mon Sep 17 00:00:00 2001 From: Edward Vear Date: Tue, 27 Oct 2020 00:02:03 -0700 Subject: Bluetooth: Fix attempting to set RPA timeout when unsupported During controller initialization, an LE Set RPA Timeout command is sent to the controller if supported. However, the value checked to determine if the command is supported is incorrect. Page 1921 of the Bluetooth Core Spec v5.2 shows that bit 2 of octet 35 of the Supported_Commands field corresponds to the LE Set RPA Timeout command, but currently bit 6 of octet 35 is checked. This patch checks the correct value instead. This issue led to the error seen in the following btmon output during initialization of an adapter (rtl8761b) and prevented initialization from completing. < HCI Command: LE Set Resolvable Private Address Timeout (0x08|0x002e) plen 2 Timeout: 900 seconds > HCI Event: Command Complete (0x0e) plen 4 LE Set Resolvable Private Address Timeout (0x08|0x002e) ncmd 2 Status: Unsupported Remote Feature / Unsupported LMP Feature (0x1a) = Close Index: 00:E0:4C:6B:E5:03 The error did not appear when running with this patch. Signed-off-by: Edward Vear Signed-off-by: Marcel Holtmann --- net/bluetooth/hci_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 502552d6e9af..c4aa2cbb9269 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -763,7 +763,7 @@ static int hci_init3_req(struct hci_request *req, unsigned long opt) hci_req_add(req, HCI_OP_LE_CLEAR_RESOLV_LIST, 0, NULL); } - if (hdev->commands[35] & 0x40) { + if (hdev->commands[35] & 0x04) { __le16 rpa_timeout = cpu_to_le16(hdev->rpa_timeout); /* Set RPA timeout */ -- cgit v1.2.3-1-gf6bb5 From e5e77ad2223f662e1615266d8ef39a8db7e65a70 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Felix=20H=C3=A4dicke?= Date: Thu, 19 Nov 2020 09:22:32 +0100 Subject: HID: quirks: Add Apple Magic Trackpad 2 to hid_have_special_driver list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Apple Magic Trackpad 2 is handled by the magicmouse driver. And there were severe stability issues when both drivers (hid-generic and hid-magicmouse) were loaded for this device. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=210241 Signed-off-by: Felix Hädicke --- drivers/hid/hid-quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index bf7ecab5d9e5..142e9dae2837 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -478,6 +478,8 @@ static const struct hid_device_id hid_have_special_driver[] = { #if IS_ENABLED(CONFIG_HID_MAGICMOUSE) { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) }, + { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) }, #endif #if IS_ENABLED(CONFIG_HID_MAYFLASH) { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3) }, -- cgit v1.2.3-1-gf6bb5 From 0128c7314a4d856461caacfdd528a7bffa03d41e Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 23 Dec 2020 14:41:00 -0500 Subject: btrfs: Fix 500-2000% performance regression w/ 5.10 Josef's tentative fix from https://lore.kernel.org/linux-btrfs/0382080a1836a12c2d625f8a5bf899828eba204b.1608752315.git.josef@toxicpanda.com/ With the conflict fix mentioned in the reply. For https://bugs.archlinux.org/task/69077 --- fs/btrfs/space-info.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c index 64099565ab8f..8a1ce11b6ed8 100644 --- a/fs/btrfs/space-info.c +++ b/fs/btrfs/space-info.c @@ -480,6 +480,28 @@ static inline u64 calc_reclaim_items_nr(struct btrfs_fs_info *fs_info, #define EXTENT_SIZE_PER_ITEM SZ_256K +static void btrfs_writeback_inodes_sb_nr(struct btrfs_fs_info *fs_info, + unsigned long nr_pages, u64 nr_items) +{ + struct super_block *sb = fs_info->sb; + + if (down_read_trylock(&sb->s_umount)) { + writeback_inodes_sb_nr(sb, nr_pages, WB_REASON_FS_FREE_SPACE); + up_read(&sb->s_umount); + } else { + /* + * We needn't worry the filesystem going from r/w to r/o though + * we don't acquire ->s_umount mutex, because the filesystem + * should guarantee the delalloc inodes list be empty after + * the filesystem is readonly(all dirty pages are written to + * the disk). + */ + btrfs_start_delalloc_roots(fs_info, nr_items); + if (!current->journal_info) + btrfs_wait_ordered_roots(fs_info, nr_items, 0, (u64)-1); + } +} + /* * shrink metadata reservation for delalloc */ @@ -532,7 +554,8 @@ static void shrink_delalloc(struct btrfs_fs_info *fs_info, loops = 0; while ((delalloc_bytes || dio_bytes) && loops < 3) { - btrfs_start_delalloc_roots(fs_info, items); + unsigned long nr_pages = min(delalloc_bytes, to_reclaim) >> PAGE_SHIFT; + btrfs_writeback_inodes_sb_nr(fs_info, nr_pages, items); loops++; if (wait_ordered && !trans) { -- cgit v1.2.3-1-gf6bb5 From 61e5f6548784e507eb0662a71976a673436e6e3a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 21 Dec 2020 20:14:02 +0100 Subject: iwlwifi: Fix regression from UDP segmentation support Eric's tentative fix from https://lore.kernel.org/linux-wireless/CANn89iJWG2n1s3j7EdpwkQQv-9dOY02V+FGYHAWguO4JiqWuJA@mail.gmail.com/ --- drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index fe1c538cd718..c27743a58f81 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -833,6 +833,7 @@ iwl_mvm_tx_tso_segment(struct sk_buff *skb, unsigned int num_subframes, next = skb_gso_segment(skb, netdev_flags); skb_shinfo(skb)->gso_size = mss; + skb_shinfo(skb)->gso_type = ipv4 ? SKB_GSO_TCPV4 : SKB_GSO_TCPV6; if (WARN_ON_ONCE(IS_ERR(next))) return -EINVAL; else if (next) @@ -855,6 +856,7 @@ iwl_mvm_tx_tso_segment(struct sk_buff *skb, unsigned int num_subframes, if (tcp_payload_len > mss) { skb_shinfo(tmp)->gso_size = mss; + skb_shinfo(tmp)->gso_type = ipv4 ? SKB_GSO_TCPV4 : SKB_GSO_TCPV6; } else { if (qos) { u8 *qc; -- cgit v1.2.3-1-gf6bb5 From 00f09a6a8193b46c83ae1c8ff6623db011f90099 Mon Sep 17 00:00:00 2001 From: "Jan Alexander Steffens (heftig)" Date: Fri, 1 Jan 2021 06:20:32 +0100 Subject: ALSA: hda/hdmi: fix locking in silent_stream_disable The code unlocked the wrong lock, leading to deadlocks. --- sound/pci/hda/patch_hdmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 2ddc27db8c01..d12b4799c3cb 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1736,7 +1736,7 @@ static void silent_stream_disable(struct hda_codec *codec, per_pin->silent_stream = false; unlock_out: - mutex_unlock(&spec->pcm_lock); + mutex_unlock(&per_pin->lock); } /* update ELD and jack state via audio component */ -- cgit v1.2.3-1-gf6bb5