Age | Commit message (Collapse) | Author |
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Update both the extraction and injection to do timestamping of the
frames. The extraction is always doing the timestamping while for
injection is doing the timestamping only if it is configured.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement the ioctl callbacks SIOCSHWTSTAMP and SIOCGHWTSTAMP to allow
to configure the ports to enable/disable timestamping for TX. The RX
timestamping is always enabled. The HW is capable to run both 1-step
timestamping and 2-step timestamping.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The lan966x has 3 PHC. Enable each of them, for now all the
timestamping is happening on the first PHC.
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the registers that will be used to configure the PHC in the HW.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert sparx5 to use the mac_select_interface rather than using
phylink_set_pcs(). The intention here is to unify the approach for
PCS and eventually remove phylink_set_pcs().
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The function lan966x_mac_wait_for_completion is used to poll the status
of the MAC table using the function readx_poll_timeout. The problem with
this function is that is called also from atomic context. Therefore
update the function to use readx_poll_timeout_atomic.
Fixes: e18aba8941b40b ("net: lan966x: add mactable support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On lan966x, when injecting a frame it was polling the register
QS_INJ_STATUS to see if it can continue with the injection of the frame.
The problem was that it was using readx_poll_timeout which could sleep
in atomic context.
This patch fixes this issue by using readx_poll_timeout_atomic.
Fixes: d28d6d2e37d10d ("net: lan966x: add port module support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The 2nd param of phy_init_eee(): clk_stop_enable is a bool param, use
true or false instead of 1/0.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220123152241.1480-1-jszhang@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As stated in [1], dma_set_mask() with a 64-bit mask never fails if
dev->dma_mask is non-NULL.
So, if it fails, the 32 bits case will also fail for the same reason.
Simplify code and remove some dead code accordingly.
[1]: https://lkml.org/lkml/2021/6/7/398
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/ef548716606f257939df9738a801f15b6edf2568.1641743405.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Extend lan966x driver with mdb support by implementing the switchdev
calls: SWITCHDEV_OBJ_ID_PORT_MDB and SWITCHDEV_OBJ_ID_HOST_MDB.
It is allowed to add both ipv4/ipv6 entries and l2 entries. To add
ipv4/ipv6 entries is not required to use the PGID table while for l2
entries it is required. The PGID table is much smaller than MAC table
so only fewer l2 entries can be added.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The first entries in the PGID table are used by the front ports while
the last entries are used for different purposes like flooding mask,
copy to CPU, etc. So add these macros to define which entries can be
used for general purpose.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Extend mac functionality with the function lan966x_mac_ip_learn. This
function adds an entry in the MAC table for IP multicast addresses.
These entries can copy a frame to the CPU but also can forward on the
front ports.
This functionality is needed for mdb support. In case the CPU and some
of the front ports subscribe to an IP multicast address.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The blamed commit changed the vlan used by the host ports to be 4095
instead of 0.
Because of this change the following issues are seen:
- when the port is probed first it was adding an entry in the MAC table
with the wrong vlan (port->pvid which is default 0) and not HOST_PVID
- when the port is removed from a bridge, it was using the wrong vlan to
add entries in the MAC table. It was using the old PVID and not the
HOST_PVID
This patch fixes this two issues by using the HOST_PVID instead of
port->pvid.
Fixes: 6d2c186afa5d5d ("net: lan966x: Add vlan support.")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch series extends the current supported bridge flags with the
following flags: BR_FLOOD, BR_BCAST_FLOOD and BR_LEARNING.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Extend lan966x driver with fdb support by implementing the switchdev
calls SWITCHDEV_FDB_ADD_TO_DEVICE and SWITCHDEV_FDB_DEL_TO_DEVICE.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently allow a port to be part or not of the multicast flooding mask.
By implementing the switchdev calls SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS
and SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Extend the driver to support vlan filtering by implementing the
switchdev calls SWITCHDEV_OBJ_ID_PORT_VLAN,
SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds basic support to offload in the HW the forwarding of the
frames. The driver registers to the switchdev callbacks and implements
the callbacks for attributes SWITCHDEV_ATTR_ID_PORT_STP_STATE and
SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME.
It is not allowed to add a lan966x port to a bridge that contains a
different interface than lan966x.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The function lan966x_port_change_rx_flags() was used only when
IFF_PROMISC flag was set. In that case it was setting to copy all the
frames to the CPU instead of removing any RX filters. Therefore remove
it.
Fixes: d28d6d2e37d10d ("net: lan966x: add port module support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for adding/removing mac entries in the SW list
of entries and in the HW table. This is used by the bridge
functionality.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for handling the interrupts generated by the
analyzer. Currently, only the MAC table generates these interrupts.
The MAC table will generate an interrupt whenever it learns or forgets
an entry in the table. It is the SW responsibility figure out which
entries were added/removed.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds the registers that will be used to enable switchdev and
vlan functionality in the HW.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit 94dd016ae538 ("bond: pass get_ts_info and SIOC[SG]HWTSTAMP
ioctl to active device") the user could get bond active interface's
PHC index directly. But when there is a failover, the bond active
interface will change, thus the PHC index is also changed. This may
break the user's program if they did not update the PHC timely.
This patch adds a new hwtstamp_config flag HWTSTAMP_FLAG_BONDED_PHC_INDEX.
When the user wants to get the bond active interface's PHC, they need to
add this flag and be aware the PHC index may be changed.
With the new flag. All flag checks in current drivers are removed. Only
the checking in net_hwtstamp_validate() is kept.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When inserting a SFP that runs at 2.5G, then the Serdes was still
configured to run at 1G. Because the config->speed was 0, and then the
speed of the serdes was not configured at all, it was using the default
value which is 1G. This patch stop calling the serdes function set_speed
and allow the serdes to figure out the speed based on the interface
type.
Fixes: d28d6d2e37d10d ("net: lan966x: add port module support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The devm_ioremap() function does not return error pointers. It returns
NULL.
Fixes: db8bcaad5393 ("net: lan966x: add the basic lan966x driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The lan966x is using the function 'packing' to create/extract the
information for the IFH, that is used to be added in front of the frames
when they are injected/extracted.
Therefore update the Kconfig to select config option 'PACKING' whenever
lan966x driver is enabled.
Fixes: db8bcaad539314 ("net: lan966x: add the basic lan966x driver")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The blamed commit generates the following smatch static checker warning:
drivers/net/ethernet/microchip/lan966x/lan966x_main.c:515 lan966x_xtr_irq_handler()
warn: duplicate check 'sz < 0' (previous on line 502)
This patch fixes this issue removing the duplicate check 'sz < 0'
Fixes: d28d6d2e37d10d ("net: lan966x: add port module support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for statistics counters for the network
interfaces. Also adds support for configuring the network interface via
ethtool like: speed, duplex etc.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for MAC table operations like add and forget.
Also add the functionality to read the MAC address from DT, if there is
no MAC set in DT it would use a random one.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for netdev and phylink in the switch. The
injection + extraction is register based. This will be replaced with DMA
accees.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds basic SwitchDev driver framework for lan966x. It
includes only the IO range mapping and probing of the switch.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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drivers/net/ipa/ipa_main.c
8afc7e471ad3 ("net: ipa: separate disabling setup from modem stop")
76b5fbcd6b47 ("net: ipa: kill ipa_modem_init()")
Duplicated include, drop one.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Usage of phy_ethtool_get_link_ksettings() in the link status change
handler isn't needed, and in combination with the referenced change
it results in a deadlock. Simply remove the call and replace it with
direct access to phydev->speed. The duplex argument of
lan743x_phy_update_flowcontrol() isn't used and can be removed.
Fixes: c10a485c3de5 ("phy: phy_ethtool_ksettings_get: Lock the phy for consistency")
Reported-by: Alessandro B Maurici <abmaurici@gmail.com>
Tested-by: Alessandro B Maurici <abmaurici@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/40e27f76-0ba3-dcef-ee32-a78b9df38b0f@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Sparx5 has no special behaviour in its validation implementation, so can
be switched to phylink_generic_validate().
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sparx5_phylink_validate() no longer needs to check for
PHY_INTERFACE_MODE_NA as phylink will walk the supported interface
types to discover the link mode capabilities. Neither is it necessary
to check the device capabilities as we will not be called for
unsupported interface modes. Remove these checks.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Populate the phy_interface_t bitmap for the Microchip Sparx5 driver
with interfaces modes supported by the MAC.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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performance
Increase the rx ring size (LAN743X_RX_RING_SIZE) to improve rx performance on some platforms.
Tested on x86 PC with EVB-LAN7430.
The iperf3.7 TCPIP improved from 881 Mbps to 922 Mbps, and UDP improved from 817 Mbps to 936 Mbps.
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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include/net/sock.h
7b50ecfcc6cd ("net: Rename ->stream_memory_read to ->sock_is_readable")
4c1e34c0dbff ("vsock: Enable y2038 safe timeval for timeout")
drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
0daa55d033b0 ("octeontx2-af: cn10k: debugfs for dumping LMTST map table")
e77bcdd1f639 ("octeontx2-af: Display all enabled PF VF rsrc_alloc entries.")
Adjacent code addition in both cases, keep both.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The driver allocates skb during ndo_open with GFP_ATOMIC which has high chance of failure when there are multiple instances.
GFP_KERNEL is enough while open and use GFP_ATOMIC only from interrupt context.
Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This converts instances of
bitmap_foo(args..., __ETHTOOL_LINK_MODE_MASK_NBITS)
to
linkmode_foo(args...)
I manually fixed up some lines to prevent them from being excessively
long. Otherwise, this change was generated with the following semantic
patch:
// Generated with
// echo linux/linkmode.h > includes
// git grep -Flf includes include/ | cut -f 2- -d / | cat includes - \
// | sort | uniq | tee new_includes | wc -l && mv new_includes includes
// and repeating until the number stopped going up
@i@
@@
(
#include <linux/acpi_mdio.h>
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#include <linux/brcmphy.h>
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#include <linux/dsa/loop.h>
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#include <linux/dsa/sja1105.h>
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#include <linux/ethtool.h>
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#include <linux/ethtool_netlink.h>
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#include <linux/fec.h>
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#include <linux/fs_enet_pd.h>
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#include <linux/fsl/enetc_mdio.h>
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#include <linux/fwnode_mdio.h>
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#include <linux/linkmode.h>
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#include <linux/lsm_audit.h>
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#include <linux/mdio-bitbang.h>
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#include <linux/mdio.h>
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#include <linux/mdio-mux.h>
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#include <linux/mii.h>
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#include <linux/mii_timestamper.h>
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#include <linux/mlx5/accel.h>
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#include <linux/mlx5/cq.h>
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#include <linux/mlx5/device.h>
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#include <linux/mlx5/driver.h>
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#include <linux/mlx5/eswitch.h>
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#include <linux/mlx5/fs.h>
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#include <linux/mlx5/port.h>
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#include <linux/mlx5/qp.h>
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#include <linux/mlx5/rsc_dump.h>
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#include <linux/mlx5/transobj.h>
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#include <linux/mlx5/vport.h>
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#include <linux/of_mdio.h>
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#include <linux/of_net.h>
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#include <linux/pcs-lynx.h>
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#include <linux/pcs/pcs-xpcs.h>
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#include <linux/phy.h>
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#include <linux/phy_led_triggers.h>
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#include <linux/phylink.h>
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#include <linux/platform_data/bcmgenet.h>
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#include <linux/platform_data/xilinx-ll-temac.h>
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#include <linux/pxa168_eth.h>
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#include <linux/qed/qed_eth_if.h>
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#include <linux/qed/qed_fcoe_if.h>
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#include <linux/qed/qed_if.h>
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#include <linux/qed/qed_iov_if.h>
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#include <linux/qed/qed_iscsi_if.h>
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#include <linux/qed/qed_ll2_if.h>
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#include <linux/qed/qed_nvmetcp_if.h>
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#include <linux/qed/qed_rdma_if.h>
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#include <linux/sfp.h>
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#include <linux/sh_eth.h>
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#include <linux/smsc911x.h>
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#include <linux/soc/nxp/lpc32xx-misc.h>
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#include <linux/stmmac.h>
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#include <linux/sunrpc/svc_rdma.h>
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#include <linux/sxgbe_platform.h>
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#include <net/cfg80211.h>
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#include <net/dsa.h>
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#include <net/mac80211.h>
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#include <net/selftests.h>
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#include <rdma/ib_addr.h>
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#include <rdma/ib_cache.h>
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#include <rdma/ib_cm.h>
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#include <rdma/ib_hdrs.h>
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#include <rdma/ib_mad.h>
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#include <rdma/ib_marshall.h>
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#include <rdma/ib_pack.h>
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#include <rdma/ib_pma.h>
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#include <rdma/ib_sa.h>
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#include <rdma/ib_smi.h>
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#include <rdma/ib_umem.h>
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#include <rdma/ib_umem_odp.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/iw_cm.h>
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#include <rdma/mr_pool.h>
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#include <rdma/opa_addr.h>
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#include <rdma/opa_port_info.h>
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#include <rdma/opa_smi.h>
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#include <rdma/opa_vnic.h>
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#include <rdma/rdma_cm.h>
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#include <rdma/rdma_cm_ib.h>
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#include <rdma/rdmavt_cq.h>
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#include <rdma/rdma_vt.h>
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#include <rdma/rdmavt_qp.h>
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#include <rdma/rw.h>
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#include <rdma/tid_rdma_defs.h>
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#include <rdma/uverbs_ioctl.h>
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#include <rdma/uverbs_named_ioctl.h>
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#include <rdma/uverbs_std_types.h>
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#include <rdma/uverbs_types.h>
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#include <soc/mscc/ocelot.h>
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#include <soc/mscc/ocelot_ptp.h>
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#include <soc/mscc/ocelot_vcap.h>
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#include <trace/events/ib_mad.h>
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#include <trace/events/rdma_core.h>
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#include <trace/events/rdma.h>
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#include <trace/events/rpcrdma.h>
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#include <uapi/linux/ethtool.h>
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#include <uapi/linux/ethtool_netlink.h>
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#include <uapi/linux/mdio.h>
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#include <uapi/linux/mii.h>
)
@depends on i@
expression list args;
@@
(
- bitmap_zero(args, __ETHTOOL_LINK_MODE_MASK_NBITS)
+ linkmode_zero(args)
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- bitmap_copy(args, __ETHTOOL_LINK_MODE_MASK_NBITS)
+ linkmode_copy(args)
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- bitmap_and(args, __ETHTOOL_LINK_MODE_MASK_NBITS)
+ linkmode_and(args)
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- bitmap_or(args, __ETHTOOL_LINK_MODE_MASK_NBITS)
+ linkmode_or(args)
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- bitmap_empty(args, ETHTOOL_LINK_MODE_MASK_NBITS)
+ linkmode_empty(args)
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- bitmap_andnot(args, __ETHTOOL_LINK_MODE_MASK_NBITS)
+ linkmode_andnot(args)
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- bitmap_equal(args, __ETHTOOL_LINK_MODE_MASK_NBITS)
+ linkmode_equal(args)
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- bitmap_intersects(args, __ETHTOOL_LINK_MODE_MASK_NBITS)
+ linkmode_intersects(args)
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- bitmap_subset(args, __ETHTOOL_LINK_MODE_MASK_NBITS)
+ linkmode_subset(args)
)
Add missing linux/mii.h include to mellanox. -DaveM
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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dma_set_mask_and_coherent
The dma failure was reported in the raspberry pi github (issue #4117).
https://github.com/raspberrypi/linux/issues/4117
The use of dma_set_mask_and_coherent fixes the issue.
Tested on 32/64-bit raspberry pi CM4 and 64-bit ubuntu x86 PC with EVB-LAN7430.
Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The driver needs to clean up and return when the initialization fails on resume.
Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Lots of simnple overlapping additions.
With a build fix from Stephen Rothwell.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 406f42fa0d3c ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix following coccicheck warning:
./drivers/net/ethernet/microchip/sparx5/s4parx5_main.c:723:1-33: WARNING: Function
for_each_available_child_of_node should have of_node_put() before goto
Early exits from for_each_available_child_of_node should decrement the
node reference counter.
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 406f42fa0d3c ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the PTP_PEROUT_DUTY_CYCLE flag is set, then check if the
request_on value in ptp_perout_request matches the pre-defined
values or a toggle option.
Return a failure if the value is not supported.
Preserve the old behaviors if the PTP_PEROUT_DUTY_CYCLE flag is not
set.
Tested with an oscilloscope on EVB-LAN7430:
e.g., to output PPS 1sec period 500mS on (high) to GPIO 2.
./testptp -L 2,2
./testptp -p 1000000000 -w 500000000
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Link: https://lore.kernel.org/r/1634046593-64312-1-git-send-email-yuiko.oshino@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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tools/testing/selftests/net/ioam6.sh
7b1700e009cc ("selftests: net: modify IOAM tests for undef bits")
bf77b1400a56 ("selftests: net: Test for the IOAM encapsulation with IPv6")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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devm_regmap_init may return error which caused by like out of memory,
this will results in null pointer dereference later when reading
or writing register:
general protection fault in encx24j600_spi_probe
KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097]
CPU: 0 PID: 286 Comm: spi-encx24j600- Not tainted 5.15.0-rc2-00142-g9978db750e31-dirty #11 9c53a778c1306b1b02359f3c2bbedc0222cba652
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
RIP: 0010:regcache_cache_bypass drivers/base/regmap/regcache.c:540
Code: 54 41 89 f4 55 53 48 89 fb 48 83 ec 08 e8 26 94 a8 fe 48 8d bb a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 4a 03 00 00 4c 8d ab b0 00 00 00 48 8b ab a0 00
RSP: 0018:ffffc900010476b8 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: fffffffffffffff4 RCX: 0000000000000000
RDX: 0000000000000012 RSI: ffff888002de0000 RDI: 0000000000000094
RBP: ffff888013c9a000 R08: 0000000000000000 R09: fffffbfff3f9cc6a
R10: ffffc900010476e8 R11: fffffbfff3f9cc69 R12: 0000000000000001
R13: 000000000000000a R14: ffff888013c9af54 R15: ffff888013c9ad08
FS: 00007ffa984ab580(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a6384136c8 CR3: 000000003bbe6003 CR4: 0000000000770ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
encx24j600_spi_probe drivers/net/ethernet/microchip/encx24j600.c:459
spi_probe drivers/spi/spi.c:397
really_probe drivers/base/dd.c:517
__driver_probe_device drivers/base/dd.c:751
driver_probe_device drivers/base/dd.c:782
__device_attach_driver drivers/base/dd.c:899
bus_for_each_drv drivers/base/bus.c:427
__device_attach drivers/base/dd.c:971
bus_probe_device drivers/base/bus.c:487
device_add drivers/base/core.c:3364
__spi_add_device drivers/spi/spi.c:599
spi_add_device drivers/spi/spi.c:641
spi_new_device drivers/spi/spi.c:717
new_device_store+0x18c/0x1f1 [spi_stub 4e02719357f1ff33f5a43d00630982840568e85e]
dev_attr_store drivers/base/core.c:2074
sysfs_kf_write fs/sysfs/file.c:139
kernfs_fop_write_iter fs/kernfs/file.c:300
new_sync_write fs/read_write.c:508 (discriminator 4)
vfs_write fs/read_write.c:594
ksys_write fs/read_write.c:648
do_syscall_64 arch/x86/entry/common.c:50
entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:113
Add error check in devm_regmap_init_encx24j600 to avoid this situation.
Fixes: 04fbfce7a222 ("net: Microchip encx24j600 driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Nanyong Sun <sunnanyong@huawei.com>
Link: https://lore.kernel.org/r/20211012125901.3623144-1-sunnanyong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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