From: Hauke Mehrtens hauke@hauke-m.de
[ Upstream commit f9317ae5523f99999fb54c513ebabbb2bc887ddf ]
The TX DMA channel data is accessed by the xrx200_start_xmit() and the xrx200_tx_housekeeping() function from different threads. Make sure the accesses are synchronized by acquiring the netif_tx_lock() in the xrx200_tx_housekeeping() function too. This lock is acquired by the kernel before calling xrx200_start_xmit().
Signed-off-by: Hauke Mehrtens hauke@hauke-m.de Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/lantiq_xrx200.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c index 96948276b2bc3..4e44a39267eb3 100644 --- a/drivers/net/ethernet/lantiq_xrx200.c +++ b/drivers/net/ethernet/lantiq_xrx200.c @@ -245,6 +245,7 @@ static int xrx200_tx_housekeeping(struct napi_struct *napi, int budget) int pkts = 0; int bytes = 0;
+ netif_tx_lock(net_dev); while (pkts < budget) { struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->tx_free];
@@ -268,6 +269,7 @@ static int xrx200_tx_housekeeping(struct napi_struct *napi, int budget) net_dev->stats.tx_bytes += bytes; netdev_completed_queue(ch->priv->net_dev, pkts, bytes);
+ netif_tx_unlock(net_dev); if (netif_queue_stopped(net_dev)) netif_wake_queue(net_dev);
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit aab9e7896ec98b2a6b4eeeed71cc666776bb8def ]
The WMI INIT method on for some reason turns on the camera LED on these 2-in-1s, without the WMI interface allowing further control over the LED.
To fix this commit b5f7311d3a2e ("platform/x86: asus-nb-wmi: Do not load on Asus T100TA and T200TA") added a blacklist with these 2 models on it since the WMI driver did not add any extra functionality to these models.
Recently I've been working on making more 2-in-1 models report their tablet-mode (SW_TABLET_MODE) to userspace; and I've found that these 2 Asus models report this through WMI. This commit reverts the adding of the blacklist, so that the Asus WMI driver can be used on these models to report their tablet-mode.
Note, not calling INIT is also not an option, because then we will not receive events when the tablet-mode changes. So the LED issue will need to be fixed somewhere else entirely.
Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/asus-nb-wmi.c | 24 ------------------------ 1 file changed, 24 deletions(-)
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c index 59b78a181723b..fef739effa283 100644 --- a/drivers/platform/x86/asus-nb-wmi.c +++ b/drivers/platform/x86/asus-nb-wmi.c @@ -596,33 +596,9 @@ static struct asus_wmi_driver asus_nb_wmi_driver = { .detect_quirks = asus_nb_wmi_quirks, };
-static const struct dmi_system_id asus_nb_wmi_blacklist[] __initconst = { - { - /* - * asus-nb-wm adds no functionality. The T100TA has a detachable - * USB kbd, so no hotkeys and it has no WMI rfkill; and loading - * asus-nb-wm causes the camera LED to turn and _stay_ on. - */ - .matches = { - DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"), - }, - }, - { - /* The Asus T200TA has the same issue as the T100TA */ - .matches = { - DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T200TA"), - }, - }, - {} /* Terminating entry */ -};
static int __init asus_nb_wmi_init(void) { - if (dmi_check_system(asus_nb_wmi_blacklist)) - return -ENODEV; - return asus_wmi_register_driver(&asus_nb_wmi_driver); }
From: Marius Iacob themariusus@gmail.com
[ Upstream commit 1d2dd379bd99ee4356ae4552fd1b8e43c7ca02cd ]
The Intel Atom Cherry Trail platform reports a new battery name (BATC). Tested on ASUS Transformer Mini T103HAF.
Signed-off-by: Marius Iacob themariusus@gmail.com Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/asus-wmi.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index ed83fb135bab3..457fb5de70ee5 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -425,6 +425,7 @@ static int asus_wmi_battery_add(struct power_supply *battery) */ if (strcmp(battery->desc->name, "BAT0") != 0 && strcmp(battery->desc->name, "BAT1") != 0 && + strcmp(battery->desc->name, "BATC") != 0 && strcmp(battery->desc->name, "BATT") != 0) return -ENODEV;
From: Xie He xie.he.0141@gmail.com
[ Upstream commit ed46cd1d4cc4b2cf05f31fe25fc68d1a9d3589ba ]
1. Move the lapb_register/lapb_unregister calls into the ndo_open/ndo_stop functions. This makes the LAPB protocol start/stop when the network interface starts/stops. When the network interface is down, the LAPB protocol shouldn't be running and the LAPB module shoudn't be generating control frames.
2. Move netif_start_queue/netif_stop_queue into the ndo_open/ndo_stop functions. This makes the TX queue start/stop when the network interface starts/stops. (netif_stop_queue was originally in the ndo_stop function. But to make the code look better, I created a new function to use as ndo_stop, and made it call the original ndo_stop function. I moved netif_stop_queue from the original ndo_stop function to the new ndo_stop function.)
Cc: Martin Schiller ms@dev.tdt.de Signed-off-by: Xie He xie.he.0141@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wan/x25_asy.c | 43 +++++++++++++++++++++++---------------- 1 file changed, 26 insertions(+), 17 deletions(-)
diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c index cdcc380b4c268..80090fdab98a0 100644 --- a/drivers/net/wan/x25_asy.c +++ b/drivers/net/wan/x25_asy.c @@ -456,7 +456,6 @@ static int x25_asy_open(struct net_device *dev) { struct x25_asy *sl = netdev_priv(dev); unsigned long len; - int err;
if (sl->tty == NULL) return -ENODEV; @@ -482,14 +481,7 @@ static int x25_asy_open(struct net_device *dev) sl->xleft = 0; sl->flags &= (1 << SLF_INUSE); /* Clear ESCAPE & ERROR flags */
- netif_start_queue(dev); - - /* - * Now attach LAPB - */ - err = lapb_register(dev, &x25_asy_callbacks); - if (err == LAPB_OK) - return 0; + return 0;
/* Cleanup */ kfree(sl->xbuff); @@ -511,7 +503,6 @@ static int x25_asy_close(struct net_device *dev) if (sl->tty) clear_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags);
- netif_stop_queue(dev); sl->rcount = 0; sl->xleft = 0; spin_unlock(&sl->lock); @@ -596,7 +587,6 @@ static int x25_asy_open_tty(struct tty_struct *tty) static void x25_asy_close_tty(struct tty_struct *tty) { struct x25_asy *sl = tty->disc_data; - int err;
/* First make sure we're connected. */ if (!sl || sl->magic != X25_ASY_MAGIC) @@ -607,11 +597,6 @@ static void x25_asy_close_tty(struct tty_struct *tty) dev_close(sl->dev); rtnl_unlock();
- err = lapb_unregister(sl->dev); - if (err != LAPB_OK) - pr_err("%s: lapb_unregister error: %d\n", - __func__, err); - tty->disc_data = NULL; sl->tty = NULL; x25_asy_free(sl); @@ -714,15 +699,39 @@ static int x25_asy_ioctl(struct tty_struct *tty, struct file *file,
static int x25_asy_open_dev(struct net_device *dev) { + int err; struct x25_asy *sl = netdev_priv(dev); if (sl->tty == NULL) return -ENODEV; + + err = lapb_register(dev, &x25_asy_callbacks); + if (err != LAPB_OK) + return -ENOMEM; + + netif_start_queue(dev); + + return 0; +} + +static int x25_asy_close_dev(struct net_device *dev) +{ + int err; + + netif_stop_queue(dev); + + err = lapb_unregister(dev); + if (err != LAPB_OK) + pr_err("%s: lapb_unregister error: %d\n", + __func__, err); + + x25_asy_close(dev); + return 0; }
static const struct net_device_ops x25_asy_netdev_ops = { .ndo_open = x25_asy_open_dev, - .ndo_stop = x25_asy_close, + .ndo_stop = x25_asy_close_dev, .ndo_start_xmit = x25_asy_xmit, .ndo_tx_timeout = x25_asy_timeout, .ndo_change_mtu = x25_asy_change_mtu,
From: Xiaoliang Yang xiaoliang.yang_1@nxp.com
[ Upstream commit 4ab810a4e04ab6c851007033d39c13e6d3f55110 ]
INIT_IPS and GATE_ENABLE fields have a wrong offset in SG_CONFIG_REG_3. This register is used by stream gate control of PSFP, and it has not been used before, because PSFP is not implemented in ocelot driver.
Signed-off-by: Xiaoliang Yang xiaoliang.yang_1@nxp.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mscc/ocelot_ana.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/mscc/ocelot_ana.h b/drivers/net/ethernet/mscc/ocelot_ana.h index 841c6ec22b641..1669481d97794 100644 --- a/drivers/net/ethernet/mscc/ocelot_ana.h +++ b/drivers/net/ethernet/mscc/ocelot_ana.h @@ -252,10 +252,10 @@ #define ANA_SG_CONFIG_REG_3_LIST_LENGTH_M GENMASK(18, 16) #define ANA_SG_CONFIG_REG_3_LIST_LENGTH_X(x) (((x) & GENMASK(18, 16)) >> 16) #define ANA_SG_CONFIG_REG_3_GATE_ENABLE BIT(20) -#define ANA_SG_CONFIG_REG_3_INIT_IPS(x) (((x) << 24) & GENMASK(27, 24)) -#define ANA_SG_CONFIG_REG_3_INIT_IPS_M GENMASK(27, 24) -#define ANA_SG_CONFIG_REG_3_INIT_IPS_X(x) (((x) & GENMASK(27, 24)) >> 24) -#define ANA_SG_CONFIG_REG_3_INIT_GATE_STATE BIT(28) +#define ANA_SG_CONFIG_REG_3_INIT_IPS(x) (((x) << 21) & GENMASK(24, 21)) +#define ANA_SG_CONFIG_REG_3_INIT_IPS_M GENMASK(24, 21) +#define ANA_SG_CONFIG_REG_3_INIT_IPS_X(x) (((x) & GENMASK(24, 21)) >> 21) +#define ANA_SG_CONFIG_REG_3_INIT_GATE_STATE BIT(25)
#define ANA_SG_GCL_GS_CONFIG_RSZ 0x4
From: Jamie Iles jamie@nuviainc.com
[ Upstream commit 1ec8e74855588cecb2620b28b877c08f45765374 ]
MDIO reads can happen during PHY probing, and printing an error with dev_err can result in a large number of error messages during device probe. On a platform with a serial console this can result in excessively long boot times in a way that looks like an infinite loop when multiple busses are present. Since 0f183fd151c (net/fsl: enable extended scanning in xgmac_mdio) we perform more scanning so there are potentially more failures.
Reduce the logging level to dev_dbg which is consistent with the Freescale enetc driver.
Cc: Jeremy Linton jeremy.linton@arm.com Signed-off-by: Jamie Iles jamie@nuviainc.com Reviewed-by: Andrew Lunn andrew@lunn.ch Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/freescale/xgmac_mdio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c index c82c85ef5fb34..61cb4ba0005bd 100644 --- a/drivers/net/ethernet/freescale/xgmac_mdio.c +++ b/drivers/net/ethernet/freescale/xgmac_mdio.c @@ -229,7 +229,7 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum) /* Return all Fs if nothing was there */ if ((xgmac_read32(®s->mdio_stat, endian) & MDIO_STAT_RD_ER) && !priv->has_a011043) { - dev_err(&bus->dev, + dev_dbg(&bus->dev, "Error while reading PHY%d reg at %d.%hhu\n", phy_id, dev_addr, regnum); return 0xffff;
From: Wilken Gottwalt wilken.gottwalt@mailbox.org
[ Upstream commit e42d72fea91f8f2e82b65808739ca04b7a8cd7a8 ]
Adds the driver_info and usb ids of the AX88179 based Toshiba USB 3.0 ethernet adapter.
Signed-off-by: Wilken Gottwalt wilken.gottwalt@mailbox.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/ax88179_178a.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c index df2f7cc6dc03a..37caa93f7d49a 100644 --- a/drivers/net/usb/ax88179_178a.c +++ b/drivers/net/usb/ax88179_178a.c @@ -1724,6 +1724,19 @@ static const struct driver_info belkin_info = { .tx_fixup = ax88179_tx_fixup, };
+static const struct driver_info toshiba_info = { + .description = "Toshiba USB Ethernet Adapter", + .bind = ax88179_bind, + .unbind = ax88179_unbind, + .status = ax88179_status, + .link_reset = ax88179_link_reset, + .reset = ax88179_reset, + .stop = ax88179_stop, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .rx_fixup = ax88179_rx_fixup, + .tx_fixup = ax88179_tx_fixup, +}; + static const struct usb_device_id products[] = { { /* ASIX AX88179 10/100/1000 */ @@ -1757,6 +1770,10 @@ static const struct usb_device_id products[] = { /* Belkin B2B128 USB 3.0 Hub + Gigabit Ethernet Adapter */ USB_DEVICE(0x050d, 0x0128), .driver_info = (unsigned long)&belkin_info, +}, { + /* Toshiba USB 3.0 GBit Ethernet Adapter */ + USB_DEVICE(0x0930, 0x0a13), + .driver_info = (unsigned long)&toshiba_info, }, { }, };
From: Wilken Gottwalt wilken.gottwalt@mailbox.org
[ Upstream commit c92a79829c7c169139874aa1d4bf6da32d10c38a ]
Adds the driver_info and usb ids of the AX88179 based MCT U3-A9003 USB 3.0 ethernet adapter.
Signed-off-by: Wilken Gottwalt wilken.gottwalt@mailbox.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/ax88179_178a.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c index 37caa93f7d49a..9297cbc8d5c03 100644 --- a/drivers/net/usb/ax88179_178a.c +++ b/drivers/net/usb/ax88179_178a.c @@ -1737,6 +1737,19 @@ static const struct driver_info toshiba_info = { .tx_fixup = ax88179_tx_fixup, };
+static const struct driver_info mct_info = { + .description = "MCT USB 3.0 Gigabit Ethernet Adapter", + .bind = ax88179_bind, + .unbind = ax88179_unbind, + .status = ax88179_status, + .link_reset = ax88179_link_reset, + .reset = ax88179_reset, + .stop = ax88179_stop, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .rx_fixup = ax88179_rx_fixup, + .tx_fixup = ax88179_tx_fixup, +}; + static const struct usb_device_id products[] = { { /* ASIX AX88179 10/100/1000 */ @@ -1774,6 +1787,10 @@ static const struct usb_device_id products[] = { /* Toshiba USB 3.0 GBit Ethernet Adapter */ USB_DEVICE(0x0930, 0x0a13), .driver_info = (unsigned long)&toshiba_info, +}, { + /* Magic Control Technology U3-A9003 USB 3.0 Gigabit Ethernet Adapter */ + USB_DEVICE(0x0711, 0x0179), + .driver_info = (unsigned long)&mct_info, }, { }, };
From: Kevin Brace kevinbrace@bracecomputerlab.com
[ Upstream commit d120c9a81e32c43cba8017dec873b6a414898716 ]
In rhine_resume() and rhine_suspend(), the code calls netif_running() to see if the network interface is down or not. If it is down (i.e., netif_running() returning false), they will skip any housekeeping work within the function relating to the hardware. This becomes a problem when the hardware resumes from a standby since it is counting on rhine_resume() to map its MMIO and power up rest of the hardware. Not getting its MMIO remapped and rest of the hardware powered up lead to a soft reset failure and hardware disappearance. The solution is to map its MMIO and power up rest of the hardware inside rhine_open() before soft reset is to be performed. This solution was verified on ASUS P5V800-VM mainboard's integrated Rhine-II Ethernet MAC inside VIA Technologies VT8251 South Bridge.
Signed-off-by: Kevin Brace kevinbrace@bracecomputerlab.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/via/via-rhine.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c index ed12dbd156f03..691c041e6cfb6 100644 --- a/drivers/net/ethernet/via/via-rhine.c +++ b/drivers/net/ethernet/via/via-rhine.c @@ -1706,6 +1706,8 @@ static int rhine_open(struct net_device *dev) goto out_free_ring;
alloc_tbufs(dev); + enable_mmio(rp->pioaddr, rp->quirks); + rhine_power_init(dev); rhine_chip_reset(dev); rhine_task_enable(rp); init_registers(dev);
From: Kevin Brace kevinbrace@bracecomputerlab.com
[ Upstream commit aa15190cf2cf25ec7e6c6d7373ae3ca563d48601 ]
The VIA Technologies VT8251 South Bridge's integrated Rhine-II Ethernet MAC comes has a PCI revision value of 0x7c. This was verified on ASUS P5V800-VM mainboard.
Signed-off-by: Kevin Brace kevinbrace@bracecomputerlab.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/via/via-rhine.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c index 691c041e6cfb6..d5dd3afd41e18 100644 --- a/drivers/net/ethernet/via/via-rhine.c +++ b/drivers/net/ethernet/via/via-rhine.c @@ -243,7 +243,7 @@ enum rhine_revs { VT8233 = 0x60, /* Integrated MAC */ VT8235 = 0x74, /* Integrated MAC */ VT8237 = 0x78, /* Integrated MAC */ - VTunknown1 = 0x7C, + VT8251 = 0x7C, /* Integrated MAC */ VT6105 = 0x80, VT6105_B0 = 0x83, VT6105L = 0x8A,
From: Petko Manolov petko.manolov@konsulko.com
[ Upstream commit f30e25a9d1b25ac8d40071c4dc2679ad0fcdc55a ]
v2:
If reading the MAC address from eeprom fail don't throw an error, use randomly generated MAC instead. Either way the adapter will soldier on and the return type of set_ethernet_addr() can be reverted to void.
v1:
Fix a bug in set_ethernet_addr() which does not take into account possible errors (or partial reads) returned by its helpers. This can potentially lead to writing random data into device's MAC address registers.
Signed-off-by: Petko Manolov petko.manolov@konsulko.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/pegasus.c | 35 +++++++++++++++++++++++++++-------- 1 file changed, 27 insertions(+), 8 deletions(-)
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c index f7d117d80cfbb..ffa7f5adeea3f 100644 --- a/drivers/net/usb/pegasus.c +++ b/drivers/net/usb/pegasus.c @@ -359,28 +359,47 @@ fail: } #endif /* PEGASUS_WRITE_EEPROM */
-static inline void get_node_id(pegasus_t *pegasus, __u8 *id) +static inline int get_node_id(pegasus_t *pegasus, u8 *id) { - int i; - __u16 w16; + int i, ret; + u16 w16;
for (i = 0; i < 3; i++) { - read_eprom_word(pegasus, i, &w16); + ret = read_eprom_word(pegasus, i, &w16); + if (ret < 0) + return ret; ((__le16 *) id)[i] = cpu_to_le16(w16); } + + return 0; }
static void set_ethernet_addr(pegasus_t *pegasus) { - __u8 node_id[6]; + int ret; + u8 node_id[6];
if (pegasus->features & PEGASUS_II) { - get_registers(pegasus, 0x10, sizeof(node_id), node_id); + ret = get_registers(pegasus, 0x10, sizeof(node_id), node_id); + if (ret < 0) + goto err; } else { - get_node_id(pegasus, node_id); - set_registers(pegasus, EthID, sizeof(node_id), node_id); + ret = get_node_id(pegasus, node_id); + if (ret < 0) + goto err; + ret = set_registers(pegasus, EthID, sizeof(node_id), node_id); + if (ret < 0) + goto err; } + memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id)); + + return; +err: + eth_hw_addr_random(pegasus->net); + dev_info(&pegasus->intf->dev, "software assigned MAC address.\n"); + + return; }
static inline int reset_mac(pegasus_t *pegasus)
From: Anant Thazhemadam anant.thazhemadam@gmail.com
[ Upstream commit f45a4248ea4cc13ed50618ff066849f9587226b2 ]
When get_registers() fails in set_ethernet_addr(),the uninitialized value of node_id gets copied over as the address. So, check the return value of get_registers().
If get_registers() executed successfully (i.e., it returns sizeof(node_id)), copy over the MAC address using ether_addr_copy() (instead of using memcpy()).
Else, if get_registers() failed instead, a randomly generated MAC address is set as the MAC address instead.
Reported-by: syzbot+abbc768b560c84d92fd3@syzkaller.appspotmail.com Tested-by: syzbot+abbc768b560c84d92fd3@syzkaller.appspotmail.com Acked-by: Petko Manolov petkan@nucleusys.com Signed-off-by: Anant Thazhemadam anant.thazhemadam@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/rtl8150.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c index 13e51ccf02147..491625c1c3084 100644 --- a/drivers/net/usb/rtl8150.c +++ b/drivers/net/usb/rtl8150.c @@ -274,12 +274,20 @@ static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg) return 1; }
-static inline void set_ethernet_addr(rtl8150_t * dev) +static void set_ethernet_addr(rtl8150_t *dev) { - u8 node_id[6]; + u8 node_id[ETH_ALEN]; + int ret; + + ret = get_registers(dev, IDR, sizeof(node_id), node_id);
- get_registers(dev, IDR, sizeof(node_id), node_id); - memcpy(dev->netdev->dev_addr, node_id, sizeof(node_id)); + if (ret == sizeof(node_id)) { + ether_addr_copy(dev->netdev->dev_addr, node_id); + } else { + eth_hw_addr_random(dev->netdev); + netdev_notice(dev->netdev, "Assigned a random MAC address: %pM\n", + dev->netdev->dev_addr); + } }
static int rtl8150_set_mac_address(struct net_device *netdev, void *p)
From: Linus Torvalds torvalds@linux-foundation.org
[ Upstream commit 4013c1496c49615d90d36b9d513eee8e369778e9 ]
Kernel threads intentionally do CLONE_FS in order to follow any changes that 'init' does to set up the root directory (or cwd).
It is admittedly a bit odd, but it avoids the situation where 'init' does some extensive setup to initialize the system environment, and then we execute a usermode helper program, and it uses the original FS setup from boot time that may be very limited and incomplete.
[ Both Al Viro and Eric Biederman point out that 'pivot_root()' will follow the root regardless, since it fixes up other users of root (see chroot_fs_refs() for details), but overmounting root and doing a chroot() would not. ]
However, Vegard Nossum noticed that the CLONE_FS not only means that we follow the root and current working directories, it also means we share umask with whatever init changed it to. That wasn't intentional.
Just reset umask to the original default (0022) before actually starting the usermode helper program.
Reported-by: Vegard Nossum vegard.nossum@oracle.com Cc: Al Viro viro@zeniv.linux.org.uk Acked-by: Eric W. Biederman ebiederm@xmission.com Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/umh.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/kernel/umh.c b/kernel/umh.c index 3474d6aa55d83..b8c524dcc76f1 100644 --- a/kernel/umh.c +++ b/kernel/umh.c @@ -14,6 +14,7 @@ #include <linux/cred.h> #include <linux/file.h> #include <linux/fdtable.h> +#include <linux/fs_struct.h> #include <linux/workqueue.h> #include <linux/security.h> #include <linux/mount.h> @@ -75,6 +76,14 @@ static int call_usermodehelper_exec_async(void *data) flush_signal_handlers(current, 1); spin_unlock_irq(¤t->sighand->siglock);
+ /* + * Initial kernel threads share ther FS with init, in order to + * get the init root directory. But we've now created a new + * thread that is going to execve a user process and has its own + * 'struct fs_struct'. Reset umask to the default. + */ + current->fs->umask = 0022; + /* * Our parent (unbound workqueue) runs with elevated scheduling * priority. Avoid propagating that into the userspace child.
From: Masami Hiramatsu mhiramat@kernel.org
[ Upstream commit 5a0677110b73dd3e1766f89159701bfe8ac06808 ]
Use per_cpu_ptr_to_phys() instead of virt_to_phys() for per-cpu address conversion.
In xen_starting_cpu(), per-cpu xen_vcpu_info address is converted to gfn by virt_to_gfn() macro. However, since the virt_to_gfn(v) assumes the given virtual address is in linear mapped kernel memory area, it can not convert the per-cpu memory if it is allocated on vmalloc area.
This depends on CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK. If it is enabled, the first chunk of percpu memory is linear mapped. In the other case, that is allocated from vmalloc area. Moreover, if the first chunk of percpu has run out until allocating xen_vcpu_info, it will be allocated on the 2nd chunk, which is based on kernel memory or vmalloc memory (depends on CONFIG_NEED_PER_CPU_KM).
Without this fix and kernel configured to use vmalloc area for the percpu memory, the Dom0 kernel will fail to boot with following errors.
[ 0.466172] Xen: initializing cpu0 [ 0.469601] ------------[ cut here ]------------ [ 0.474295] WARNING: CPU: 0 PID: 1 at arch/arm64/xen/../../arm/xen/enlighten.c:153 xen_starting_cpu+0x160/0x180 [ 0.484435] Modules linked in: [ 0.487565] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.9.0-rc4+ #4 [ 0.493895] Hardware name: Socionext Developer Box (DT) [ 0.499194] pstate: 00000005 (nzcv daif -PAN -UAO BTYPE=--) [ 0.504836] pc : xen_starting_cpu+0x160/0x180 [ 0.509263] lr : xen_starting_cpu+0xb0/0x180 [ 0.513599] sp : ffff8000116cbb60 [ 0.516984] x29: ffff8000116cbb60 x28: ffff80000abec000 [ 0.522366] x27: 0000000000000000 x26: 0000000000000000 [ 0.527754] x25: ffff80001156c000 x24: fffffdffbfcdb600 [ 0.533129] x23: 0000000000000000 x22: 0000000000000000 [ 0.538511] x21: ffff8000113a99c8 x20: ffff800010fe4f68 [ 0.543892] x19: ffff8000113a9988 x18: 0000000000000010 [ 0.549274] x17: 0000000094fe0f81 x16: 00000000deadbeef [ 0.554655] x15: ffffffffffffffff x14: 0720072007200720 [ 0.560037] x13: 0720072007200720 x12: 0720072007200720 [ 0.565418] x11: 0720072007200720 x10: 0720072007200720 [ 0.570801] x9 : ffff8000100fbdc0 x8 : ffff800010715208 [ 0.576182] x7 : 0000000000000054 x6 : ffff00001b790f00 [ 0.581564] x5 : ffff800010bbf880 x4 : 0000000000000000 [ 0.586945] x3 : 0000000000000000 x2 : ffff80000abec000 [ 0.592327] x1 : 000000000000002f x0 : 0000800000000000 [ 0.597716] Call trace: [ 0.600232] xen_starting_cpu+0x160/0x180 [ 0.604309] cpuhp_invoke_callback+0xac/0x640 [ 0.608736] cpuhp_issue_call+0xf4/0x150 [ 0.612728] __cpuhp_setup_state_cpuslocked+0x128/0x2c8 [ 0.618030] __cpuhp_setup_state+0x84/0xf8 [ 0.622192] xen_guest_init+0x324/0x364 [ 0.626097] do_one_initcall+0x54/0x250 [ 0.630003] kernel_init_freeable+0x12c/0x2c8 [ 0.634428] kernel_init+0x1c/0x128 [ 0.637988] ret_from_fork+0x10/0x18 [ 0.641635] ---[ end trace d95b5309a33f8b27 ]--- [ 0.646337] ------------[ cut here ]------------ [ 0.651005] kernel BUG at arch/arm64/xen/../../arm/xen/enlighten.c:158! [ 0.657697] Internal error: Oops - BUG: 0 [#1] SMP [ 0.662548] Modules linked in: [ 0.665676] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 5.9.0-rc4+ #4 [ 0.673398] Hardware name: Socionext Developer Box (DT) [ 0.678695] pstate: 00000005 (nzcv daif -PAN -UAO BTYPE=--) [ 0.684338] pc : xen_starting_cpu+0x178/0x180 [ 0.688765] lr : xen_starting_cpu+0x144/0x180 [ 0.693188] sp : ffff8000116cbb60 [ 0.696573] x29: ffff8000116cbb60 x28: ffff80000abec000 [ 0.701955] x27: 0000000000000000 x26: 0000000000000000 [ 0.707344] x25: ffff80001156c000 x24: fffffdffbfcdb600 [ 0.712718] x23: 0000000000000000 x22: 0000000000000000 [ 0.718107] x21: ffff8000113a99c8 x20: ffff800010fe4f68 [ 0.723481] x19: ffff8000113a9988 x18: 0000000000000010 [ 0.728863] x17: 0000000094fe0f81 x16: 00000000deadbeef [ 0.734245] x15: ffffffffffffffff x14: 0720072007200720 [ 0.739626] x13: 0720072007200720 x12: 0720072007200720 [ 0.745008] x11: 0720072007200720 x10: 0720072007200720 [ 0.750390] x9 : ffff8000100fbdc0 x8 : ffff800010715208 [ 0.755771] x7 : 0000000000000054 x6 : ffff00001b790f00 [ 0.761153] x5 : ffff800010bbf880 x4 : 0000000000000000 [ 0.766534] x3 : 0000000000000000 x2 : 00000000deadbeef [ 0.771916] x1 : 00000000deadbeef x0 : ffffffffffffffea [ 0.777304] Call trace: [ 0.779819] xen_starting_cpu+0x178/0x180 [ 0.783898] cpuhp_invoke_callback+0xac/0x640 [ 0.788325] cpuhp_issue_call+0xf4/0x150 [ 0.792317] __cpuhp_setup_state_cpuslocked+0x128/0x2c8 [ 0.797619] __cpuhp_setup_state+0x84/0xf8 [ 0.801779] xen_guest_init+0x324/0x364 [ 0.805683] do_one_initcall+0x54/0x250 [ 0.809590] kernel_init_freeable+0x12c/0x2c8 [ 0.814016] kernel_init+0x1c/0x128 [ 0.817583] ret_from_fork+0x10/0x18 [ 0.821226] Code: d0006980 f9427c00 cb000300 17ffffea (d4210000) [ 0.827415] ---[ end trace d95b5309a33f8b28 ]--- [ 0.832076] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 0.839815] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]---
Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Reviewed-by: Stefano Stabellini sstabellini@kernel.org Link: https://lore.kernel.org/r/160196697165.60224.17470743378683334995.stgit@devn... Signed-off-by: Juergen Gross jgross@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/xen/enlighten.c | 2 +- include/xen/arm/page.h | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index dd6804a64f1a0..a019490c4ec3e 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -150,7 +150,7 @@ static int xen_starting_cpu(unsigned int cpu) pr_info("Xen: initializing cpu%d\n", cpu); vcpup = per_cpu_ptr(xen_vcpu_info, cpu);
- info.mfn = virt_to_gfn(vcpup); + info.mfn = percpu_to_gfn(vcpup); info.offset = xen_offset_in_page(vcpup);
err = HYPERVISOR_vcpu_op(VCPUOP_register_vcpu_info, xen_vcpu_nr(cpu), diff --git a/include/xen/arm/page.h b/include/xen/arm/page.h index f77dcbcba5a60..27d08d4a853c2 100644 --- a/include/xen/arm/page.h +++ b/include/xen/arm/page.h @@ -79,6 +79,9 @@ static inline unsigned long bfn_to_pfn(unsigned long bfn) #define virt_to_gfn(v) (pfn_to_gfn(virt_to_phys(v) >> XEN_PAGE_SHIFT)) #define gfn_to_virt(m) (__va(gfn_to_pfn(m) << XEN_PAGE_SHIFT))
+#define percpu_to_gfn(v) \ + (pfn_to_gfn(per_cpu_ptr_to_phys(v) >> XEN_PAGE_SHIFT)) + /* Only used in PV code. But ARM guests are always HVM. */ static inline xmaddr_t arbitrary_virt_to_machine(void *vaddr) {
From: Wilken Gottwalt wilken.gottwalt@mailbox.org
[ Upstream commit 28802e7c0c9954218d1830f7507edc9d49b03a00 ]
Add usb ids of the Cellient MPL200 card.
Signed-off-by: Wilken Gottwalt wilken.gottwalt@mailbox.org Acked-by: Bjørn Mork bjorn@mork.no Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/qmi_wwan.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index e57d59b0a7ae9..21d905d90650b 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -1375,6 +1375,7 @@ static const struct usb_device_id products[] = { {QMI_QUIRK_SET_DTR(0x2cb7, 0x0104, 4)}, /* Fibocom NL678 series */ {QMI_FIXED_INTF(0x0489, 0xe0b4, 0)}, /* Foxconn T77W968 LTE */ {QMI_FIXED_INTF(0x0489, 0xe0b5, 0)}, /* Foxconn T77W968 LTE with eSIM support*/ + {QMI_FIXED_INTF(0x2692, 0x9025, 4)}, /* Cellient MPL200 (rebranded Qualcomm 05c6:9025) */
/* 4. Gobi 1000 devices */ {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
linux-stable-mirror@lists.linaro.org
-
Sasha Levin