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2019-02-12s390/qeth: cancel cmd on early errorJulian Wiedmann2-9/+29
When sending cmds via qeth_send_control_data(), qeth puts the request on the IO channel and then blocks on the reply object until the response has been received. If the IO completes with error, there will never be a response and we block until the reply-wait hits its timeout. For this case, connect the request buffer to its reply object, so that we can immediately cancel the wait. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12s390/qeth: simplify reply object handlingJulian Wiedmann1-57/+61
Current code enqueues & dequeues a reply object from the waiter list in various places. In particular, the dequeue & enqueue in qeth_send_control_data_cb() looks fragile - this can cause qeth_clear_ipacmd_list() to skip the active object. Add some helpers, and boil the logic down by giving qeth_send_control_data() the sole responsibility to add and remove objects. qeth_send_control_data_cb() and qeth_clear_ipacmd_list() will now only notify the reply object to interrupt its wait cycle. This can cause a slight delay in the removal, but that's no concern. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12s390/qeth: limit trace to valid data of command requestJulian Wiedmann1-1/+1
'len' specifies how much data we send to the HW, don't dump beyond this boundary. As of today this is no big concern - commands are built in full, zeroed pages. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12s390/qeth: align csum offload with TSO control logicJulian Wiedmann2-89/+47
csum offload and TSO have similar programming requirements. The TSO code was reworked with commit "s390/qeth: enhance TSO control sequence", adjust the csum control flow accordingly. Primarily this means replacing custom helpers with more generic infrastructure. Also, change the LP2LP check so that it warns on TX offload (not RX). This is where reduced csum capability actually matters. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12s390/qeth: enable only required csum offload featuresJulian Wiedmann1-2/+9
Current code attempts to enable all advertised HW csum offload features. Future-proof this by enabling only those features that we actually use. Also, the IPv4 header csum feature is only needed for TX on L3 devices. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12s390/qeth: consolidate filling of low-level cmd length fieldsJulian Wiedmann5-56/+28
The code to fill the IPA length fields is duplicated three times across the driver: 1. qeth_send_ipa_cmd() sets IPA_CMD_LENGTH, which matches the defaults in the IPA_PDU_HEADER template. 2. for OSN, qeth_osn_send_ipa_cmd() bypasses this logic and inserts the length passed by the caller. 3. SNMP commands (that can outgrow IPA_CMD_LENGTH) have their own way of setting the length fields, via qeth_send_ipa_snmp_cmd(). Consolidate this into qeth_prepare_ipa_cmd(), which all originators of IPA cmds already call during setup of their cmd. Let qeth_send_ipa_cmd() pull the length from the cmd instead of hard-coding IPA_CMD_LENGTH. For now, the SNMP code still needs to fix-up its length fields manually. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12s390/qeth: reduce data length for ARP cache queryJulian Wiedmann4-18/+7
qeth_l3_query_arp_cache_info() indicates a data length that's much larger than the actual length of its request (ie. the value passed to qeth_get_setassparms_cmd()). The confusion presumably comes from the fact that the cmd _response_ can be quite large - but that's no concern for the initial request IO. Fixing this up allows us to use the generic qeth_send_ipa_cmd() infrastructure. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net/mlx4_en: Force CHECKSUM_NONE for short ethernet framesSaeed Mahameed1-2/+20
When an ethernet frame is padded to meet the minimum ethernet frame size, the padding octets are not covered by the hardware checksum. Fortunately the padding octets are usually zero's, which don't affect checksum. However, it is not guaranteed. For example, switches might choose to make other use of these octets. This repeatedly causes kernel hardware checksum fault. Prior to the cited commit below, skb checksum was forced to be CHECKSUM_NONE when padding is detected. After it, we need to keep skb->csum updated. However, fixing up CHECKSUM_COMPLETE requires to verify and parse IP headers, it does not worth the effort as the packets are so small that CHECKSUM_COMPLETE has no significant advantage. Future work: when reporting checksum complete is not an option for IP non-TCP/UDP packets, we can actually fallback to report checksum unnecessary, by looking at cqe IPOK bit. Fixes: 88078d98d1bb ("net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends") Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12MAINTAINERS: add enetc_ptp driver into QorIQ PTP listYangbo Lu1-0/+1
This patch to add enetc_ptp driver into QorIQ PTP list for maintaining. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12enetc: add PTP clock driverYangbo Lu4-2/+162
This patch is to add PTP clock driver for ENETC. The driver reused QorIQ PTP clock driver. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12ptp: add QorIQ PTP support for ENETCYangbo Lu1-1/+1
This patch is to add QorIQ PTP support for ENETC. ENETC PTP driver which is a PCI driver for same 1588 timer IP block will reuse QorIQ PTP driver. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12ptp_qoriq: fix register memory mapYangbo Lu2-14/+15
The 1588 timer on eTSEC Ethernet controller uses different register memory map with DPAA Ethernet controller. Now the new ENETC Ethernet controller uses same reigster memory map with DPAA. To support ENETC, let's use register memory map of DPAA/ENETC in default. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12dt-binding: ptp_qoriq: add little-endian supportYangbo Lu1-0/+3
Specify "little-endian" property if the 1588 timer IP block is little-endian mode. The default endian mode is big-endian. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12ptp_qoriq: add little enadian supportYangbo Lu3-42/+60
There is QorIQ 1588 timer IP block on the new ENETC Ethernet controller. However it uses little endian mode which is different with before. This patch is to add little endian support for the driver by using "little-endian" dts node property. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12ptp_qoriq: convert to use ptp_qoriq_init/freeYangbo Lu2-67/+80
Moved QorIQ PTP clock initialization/free into new functions ptp_qoriq_init()/ptp_qoriq_free(). These functions could also be reused by ENETC PTP drvier which is a PCI driver for same 1588 timer IP block. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12ptp_qoriq: make ptp operations globalYangbo Lu2-11/+25
This patch is to make functions of ptp operations global, so that ENETC PTP driver which is a PCI driver for same 1588 timer IP block could reuse them. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12ptp_qoriq: make structure/function names more consistentYangbo Lu5-171/+171
Strings containing "ptp_qoriq" or "qoriq_ptp" which were used for structure/function names were complained by users. Let's just use the unique "ptp_qoriq" to make these names more consistent. This patch is just to unify the names using "ptp_qoriq". It hasn't changed any functions. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net/skbuff: fix up kernel-doc placementBrian Norris1-6/+6
There are several skb_* functions where the locked and unlocked functions are confusingly documented. For several of them, the kernel-doc for the unlocked version is placed above the locked version, which to the casual reader makes it seems like the locked version "takes no locks and you must therefore hold required locks before calling it." One can see, for example, that this link claims to document skb_queue_head(), while instead describing __skb_queue_head(). https://www.kernel.org/doc/html/latest/networking/kapi.html#c.skb_queue_head The correct documentation for skb_queue_head() is also included further down the page. This diff tested via: $ scripts/kernel-doc -rst include/linux/skbuff.h net/core/skbuff.c No new warnings were seen, and the output makes a little more sense. Signed-off-by: Brian Norris <briannorris@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12staging: fsl-dpaa2: ethsw: Remove getting PORT_BRIDGE_FLAGSFlorian Fainelli1-5/+0
There is no code that tries to get the attribute SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS, remove support for doing that. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12rocker: Remove getting PORT_BRIDGE_FLAGSFlorian Fainelli3-27/+0
There is no code that attempts to get the SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS attribute, remove support for that. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12mlxsw: spectrum_switchdev: Remove getting PORT_BRIDGE_FLAGSFlorian Fainelli1-17/+0
There is no code that will query the SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS attribute remove support for that. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net: phy: simplify genphy_config_eee_advertHeiner Kallweit1-21/+6
Use new function phy_modify_mmd_changed(), the result speaks for itself. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net/tls: Do not use async crypto for non-data recordsVakul Garg1-6/+12
Addition of tls1.3 support broke tls1.2 handshake when async crypto accelerator is used. This is because the record type for non-data records is not propagated to user application. Also when async decryption happens, the decryption does not stop when two different types of records get dequeued and submitted for decryption. To address it, we decrypt tls1.2 non-data records in synchronous way. We check whether the record we just processed has same type as the previous one before checking for async condition and jumping to dequeue next record. Fixes: 130b392c6cd6b ("net: tls: Add tls 1.3 support") Signed-off-by: Vakul Garg <vakul.garg@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12devlink: use direct return of genlmsg_replyLi RongQing1-4/+1
This can remove redundant check Signed-off-by: Li RongQing <lirongqing@baidu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net: marvell: mvpp2: use mvpp2_is_xlg() helper elsewhereRussell King1-9/+6
There are several places which make the decision whether to access the XLGMAC vs GMAC that only check for PHY_INTERFACE_MODE_10GKR and not its XAUI variant. Switch these to use the new helper so that we have consistency through the driver. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net: marvell: mvpp2: add mvpp2_is_xlg() helperRussell King1-11/+9
Add a mvpp2_is_xlg() helper to identify whether the interface mode should be using the XLGMAC rather than the GMAC. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net: phylink: add phylink_init_eee() helperRussell King2-0/+19
Provide phylink_init_eee() to allow MAC drivers to initialise PHY EEE from within the ethtool set_eee() method. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net: phylink: only call mac_config() during resolve when link is upRussell King1-2/+9
There's little point calling mac_config() when the link is down. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12Revert "devlink: Add a generic wake_on_lan port parameter"Vasundhara Volam4-32/+1
This reverts commit b639583f9e36d044ac1b13090ae812266992cbac. As per discussion with Jakub Kicinski and Michal Kubecek, this will be better addressed by soon-too-come ethtool netlink API with additional indication that given configuration request is supposed to be persisted. Also, remove the parameter support from bnxt_en driver. Cc: Jiri Pirko <jiri@mellanox.com> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Michal Kubecek <mkubecek@suse.cz> Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12smc911x: pass struct device to DMA API functionsChristoph Hellwig1-2/+2
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Note that smc911x apparently is a PIO chip with an external DMA handshake, and we probably use the wrong device here. But at least it matches the mapping side, which apparently works or at least worked in the not too distant past. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12meth: pass struct device to DMA API functionsChristoph Hellwig1-10/+15
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Also use GFP_KERNEL instead of GFP_ATOMIC as the gfp_t for the memory allocation, as we aren't in interrupt context or under a lock. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12moxart_ether: pass struct device to DMA API functionsChristoph Hellwig2-4/+8
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12pxa168_eth: pass struct device to DMA API functionsChristoph Hellwig1-4/+7
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Note that this driver seems to entirely lack dma_map_single error handling, but that is left for another time. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12lantiq_etop: pass struct device to DMA API functionsChristoph Hellwig1-2/+4
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Note this driver seems to lack dma_unmap_* calls entirely, but fixing that is left for another time. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12macb_main: pass struct device to DMA API functionsChristoph Hellwig1-4/+4
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12au1000_eth: pass struct device to DMA API functionsChristoph Hellwig1-3/+3
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net: caif: pass struct device to DMA API functionsChristoph Hellwig1-14/+16
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Also use the proper Kconfig symbol to check for DMA API availability. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12selftests: mlxsw: avoid double sourcing of lib.shJiri Pirko1-1/+0
Don't source lib.sh 2 times and make the script work with ifnames passed on the command line. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12mlxsw: spectrum_flower: Fix VLAN modify action supportIdo Schimmel1-2/+1
The driver does not support VLAN push and pop, but only VLAN modify. Fixes: 738678817573 ("drivers: net: use flow action infrastructure") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12mlxsw: spectrum_router: Drop unnecessary WARN_ON_ONCE()Ido Schimmel1-1/+1
In case the register access failed an error would be logged anyway, so we can drop the warning. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12mlxsw: spectrum: Set LAG port collector only when activeNir Dotan1-17/+45
The LAG port collecting (receive) function was mistakenly set when the port was registered as a LAG member, while it should be set only when the port collection state is set to true. Set LAG port to collecting when it is set to distributing, as described in the IEEE link aggregation standard coupled control mux machine state diagram. Signed-off-by: Nir Dotan <nird@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12MAINTAINERS: add Karsten as SMC maintainerUrsula Braun1-0/+1
Add Karsten as additional maintainer for Shared Memory Communications (SMC) Sockets. Acked-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net/smc: check port_idx of ib eventKarsten Graul1-8/+16
For robustness protect of higher port numbers than expected to avoid setting bits behind our port_event_mask. In case of an DEVICE_FATAL event all ports must be checked. The IB_EVENT_GID_CHANGE event is provided in the global event handler, so handle it there. And handle a QP_FATAL event instead of an DEVICE_FATAL event in the qp handler. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net/smc: check connections in smc_lgr_free_workKarsten Graul1-4/+2
Remove the shortcut that smc_lgr_free() would skip the check for existing connections when the link group is not in the link group list. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net/smc: reduce amount of status updates to peerKarsten Graul1-14/+8
In smc_cdc_msg_recv_action() the received cdc message is evaluated. To reduce the number of messaged triggered by this evaluation the logic is streamlined. For the write_blocked condition we do not need to send a response immediately. The remaining conditions can be put together into one if clause. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net/smc: no delay for free tx buffer waitKarsten Graul1-1/+1
When no free transfer buffers are available then a work to call smc_tx_work() is scheduled. Set the schedule delay to zero, because for the out-of-buffers condition the work can start immediately and will block in the called function smc_wr_tx_get_free_slot(), waiting for free buffers. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net/smc: move wake up of close waiterKarsten Graul2-2/+7
Move the call to smc_close_wake_tx_prepared() (which wakes up a possibly waiting close processing that might wait for 'all data sent') to smc_tx_sndbuf_nonempty() (which is the main function to send data). Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12net/smc: reset cursor update required flagKarsten Graul2-4/+4
When an updated rx_cursor_confirmed field was sent to the peer then reset the cons_curs_upd_req flag. And remove the duplicate reset and cursor update in smc_tx_consumer_update(). Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12nfp: flower: remove double new lineJakub Kicinski1-1/+0
Recent cls_flower offload rewrite added a double new line. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11flow_offload: Fix flow action infrastructureEli Britstein1-1/+1
Implementation of macro "flow_action_for_each" introduced in commit e3ab786b42535 ("flow_offload: add flow action infrastructure") and used in commit 738678817573c ("drivers: net: use flow action infrastructure") iterated the first item twice and did not reach the last one. Fix it. Fixes: e3ab786b42535 ("flow_offload: add flow action infrastructure") Fixes: 738678817573c ("drivers: net: use flow action infrastructure") Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>