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2015-09-23arcnet: Add arcnet_<I/O> macrosJoe Perches1-0/+25
arcnet uses an I/O scheme which can align I/O addresses to word boundaries on different architectures. Add arcnet specific macros which can hide this alignment calculation. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Make a char * array const char * constJoe Perches1-5/+10
Might as well be specific about the use of this array. Add a commment questioning the indexing too. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Move files out of include/linuxJoe Perches15-22/+28
These #include files don't need to be in the include/linux directory as they can be local to drivers/net/arcnet/ Move them and update the #include statements. Update the MAINTAINERS file pattern by deleting arcdevice from the NETWORKING block as arcnet is currently unmaintained. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Wrap some long linesJoe Perches11-52/+81
Just neatening. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Convert arcnet_dump_skb macro to static inlineJoe Perches1-1/+4
Make sure the arguments are tested appropriately when not using this function. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Remove pointer comparisons to NULLJoe Perches4-6/+6
Use direct tests of pointer instead. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Remove assignments from ifsJoe Perches3-3/+7
Move the assignment above the if like general kernel style. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Remove unnecessary OOM messagesJoe Perches5-10/+2
Alloc failures have generic stack dumps so these are redundant. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Move EXPORT_SYMBOL after declarationsJoe Perches1-15/+18
Use the normal kernel style for EXPORT_SYMBOL. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Convert printk to pr_<level>Joe Perches12-64/+65
Use the more current logging style. Remove #define VERSION, use pr_info normally. Add pr_fmt with "arcnet:" prefixes and KBUILD_MODNAME. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Convert BUGMSG and BUGMSG2 to arc_prink and arc_contJoe Perches12-327/+355
These macros don't actually represent BUG uses but are more commonly used as logging macros, so use a more kernel style macro. Convert the BUGMSG from a netdev_ like use to actually use netdev_<level>. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Expand odd BUGLVL macro with if and usesJoe Perches12-58/+93
Don't hide what should be obvious. Make the macro a simple test instead of using if and test. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Neaten BUGMSG macro definesJoe Perches1-7/+17
These macros are actually printk and pr_cont uses with a flag. Add a new BUGLVL_TEST macro which is just the "should use" test and not an odd "if (<foo>)" macro to simplify uses in a new patch. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Use network block comment styleJoe Perches11-132/+95
Conformity can be useful. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Use include/linux path for asmJoe Perches7-7/+7
Use the preferred kernel include path for asm paths. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Coalesce string fragmentsJoe Perches6-36/+22
Using coalesced strings helps grep for specific messages. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Use normal kernel brace styleJoe Perches8-71/+52
Move braces normal kernel locations. Add missing braces. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Add and remove blank linesJoe Perches13-93/+13
Use a more current kernel line style. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: Use normal kernel spacing styleJoe Perches13-394/+394
Standardized spacing is easier to read. git diff -w shows no differences. objdiff shows no differences. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-23arcnet: fix indentation of if_arcnet.hJoe Perches1-29/+26
Standardized spacing is easier to read. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
2015-09-22usbnet: remove invalid checkAndrzej Hajda3-15/+0
skb->len is always non-negative. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-22rndis_wlan: fix checking for default valueAndrzej Hajda1-1/+1
Thresholds uses -1 to indicate that default value should be used. Since thresholds are unsigned sign checking makes no sense. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-22orinoco: fix checking for default valueAndrzej Hajda1-3/+3
Thresholds uses -1 to indicate that default value should be used. Since thresholds are unsigned sign checking makes no sense. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-22mwifiex: fix comparison expressionAndrzej Hajda1-2/+2
To avoid underflows signed variables should be used in expression. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-22net: brcm80211: fix range checkAndrzej Hajda1-1/+1
Unsigned minus constant is still unsigned so checking its sign makes no sense. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-22net: stmmac: fix type of entry variableAndrzej Hajda1-1/+1
Variable can store negative values. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-22net/ibm/emac: fix type of phy_modeAndrzej Hajda1-1/+1
phy_mode can be negative. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-22isdn: hisax: fix frame calculationAndrzej Hajda1-5/+5
Difference of unsigned values is also unsigned so it does not make sense to check its sign. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller120-653/+816
Pablo Neira Ayuso says: ==================== Netfilter/IPVS updates for net-next The following patchset contains Netfilter/IPVS updates for your net-next tree in this 4.4 development cycle, they are: 1) Schedule ICMP traffic to IPVS instances, this introduces a new schedule_icmp proc knob to enable/disable it. By default is off to retain the old behaviour. Patchset from Alex Gartrell. I'm also including what Alex originally said for the record: "The configuration of ipvs at Facebook is relatively straightforward. All ipvs instances bgp advertise a set of VIPs and the network prefers the nearest one or uses ECMP in the event of a tie. For the uninitiated, ECMP deterministically and statelessly load balances by hashing the packet (usually a 5-tuple of protocol, saddr, daddr, sport, and dport) and using that number as an index (basic hash table type logic). The problem is that ICMP packets (which contain really important information like whether or not an MTU has been exceeded) will get a different hash value and may end up at a different ipvs instance. With no information about where to route these packets, they are dropped, creating ICMP black holes and breaking Path MTU discovery. Suddenly, my mom's pictures can't load and I'm fielding midday calls that I want nothing to do with. To address this, this patch set introduces the ability to schedule icmp packets which is gated by a sysctl net.ipv4.vs.schedule_icmp. If set to 0, the old behavior is maintained -- otherwise ICMP packets are scheduled." 2) Add another proc entry to ignore tunneled packets to avoid routing loops from IPVS, also from Alex. 3) Fifteen patches from Eric Biederman to: * Stop passing nf_hook_ops as parameter to the hook and use the state hook object instead all around the netfilter code, so only the private data pointer is passed to the registered hook function. * Now that we've got state->net, propagate the netns pointer to netfilter hook clients to avoid its computation over and over again. A good example of how this has been simplified is the former TEE target (now nf_dup infrastructure) since it has killed the ugly pick_net() function. There's another round of netns updates from Eric Biederman making the line. To avoid the patchbomb again to almost all the networking mailing list (that is 84 patches) I'd suggest we send you a pull request with no patches or let me know if you prefer a better way. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21drivers/net/ieee802154/at86rf230.c: seq_printf() now returns NULLStephen Rothwell1-25/+10
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Alexander Aring <alex.aring@gmail.com> Cc: Stefan Schmidt <stefan@osg.samsung.com> Cc: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21Merge branch 'cpsw-macid-no-of'David S. Miller6-59/+65
Mugunthan V N says: ==================== Add support for reading macid when DT macid not found Did a boot test on dra7-evm [1] and am437x-gp-evm [2]. Pushed a branch [3] for others to test the patch. [1]: http://pastebin.ubuntu.com/12513420/ [2]: http://pastebin.ubuntu.com/12513428/ [3]: git://git.ti.com/~mugunthanvnm/ti-linux-kernel/linux.git cpsw-macid-read-support ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21arm: dts: am4372: add syscon phandle to cpsw nodeMugunthan V N1-0/+1
There are 2 MACIDs stored in the control module of the am4372. These are read by the cpsw driver if no valid MACID was found in the devicetree. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21arm: dts: dra7: add syscon phandle to cpsw nodeMugunthan V N1-0/+1
There are 2 MACIDs stored in the control module of the dra7. These are read by the cpsw driver if no valid MACID was found in the devicetree. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21drivers: net: cpsw-common: add support for reading mac address for dra7 and ↵Mugunthan V N1-0/+6
am437x platforms Adding support for reading mac address using syscon driver for dra7 and am437x platforms Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21drivers: net: cpsw: davinci_emac: move reading mac id to common fileMugunthan V N4-59/+57
Moving mac address reading from ethernet driver to common file for better maintenance and for code reusable. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21Merge tag 'linux-can-next-for-4.4-20150921' of ↵David S. Miller3-106/+95
git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next Marc Kleine-Budde says: ==================== pull-request: can-next 2015-09-17 this is a pull request of 8 patches for net-next/master. All 8 patches are by me and cleanup the flexcan driver. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21net: bcmgenet: Remove duplicate test for tx_coalesce_usecs_highFlorian Fainelli1-2/+1
We were checking twice for ec->tx_coalesce_usecs_high, remove the duplicate test. Reported-by: Julia Lawall <julia.lawall@lip6.fr> Reported-by: kbuild-all@01.org Fixes: 2f9130709d2c19 ("net: bcmgenet: Implement TX coalescing control knobs") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21tcp: send loss probe after 1s if no RTT availableYuchung Cheng1-4/+5
This patch makes TLP to use 1 sec timer by default when RTT is not available due to SYN/ACK retransmission or SYN cookies. Prior to this change, the lack of RTT prevents TLP so the first data packets sent can only be recovered by fast recovery or RTO. If the fast recovery fails to trigger the RTO is 3 second when SYN/ACK is retransmitted. With this patch we can trigger fast recovery in 1sec instead. Note that we need to check Fast Open more properly. A Fast Open connection could be (accepted then) closed before it receives the final ACK of 3WHS so the state is FIN_WAIT_1. Without the new check, TLP will retransmit FIN instead of SYN/ACK. Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Nandita Dukkipati <nanditad@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21tcp: usec resolution SYN/ACK RTTYuchung Cheng6-19/+20
Currently SYN/ACK RTT is measured in jiffies. For LAN the SYN/ACK RTT is often measured as 0ms or sometimes 1ms, which would affect RTT estimation and min RTT samping used by some congestion control. This patch improves SYN/ACK RTT to be usec resolution if platform supports it. While the timestamping of SYN/ACK is done in request sock, the RTT measurement is carefully arranged to avoid storing another u64 timestamp in tcp_sock. For regular handshake w/o SYNACK retransmission, the RTT is sampled right after the child socket is created and right before the request sock is released (tcp_check_req() in tcp_minisocks.c) For Fast Open the child socket is already created when SYN/ACK was sent, the RTT is sampled in tcp_rcv_state_process() after processing the final ACK an right before the request socket is released. If the SYN/ACK was retransmistted or SYN-cookie was used, we rely on TCP timestamps to measure the RTT. The sample is taken at the same place in tcp_rcv_state_process() after the timestamp values are validated in tcp_validate_incoming(). Note that we do not store TS echo value in request_sock for SYN-cookies, because the value is already stored in tp->rx_opt used by tcp_ack_update_rtt(). One side benefit is that the RTT measurement now happens before initializing congestion control (of the passive side). Therefore the congestion control can use the SYN/ACK RTT. Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21Merge branch 's390-next'David S. Miller14-292/+341
Ursula Braun says: ==================== s390: qeth and iucv patches here is version 2 of some s390 related qeth patches for net-next. The patch by Thomas Richter adds a new feature to the qeth layer2 code; the remaining patches are minor improvements. Version 2 of patch 4 uses the desired indentation in function declarations and definitions spanning multiple lines in almost all cases. Thomas run into a conflict with the maximum number of columns once. Thus you will still see one function definition using an earlier column before the opening paranthesis. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21s390/iucv: do not use arrays as argumentUrsula Braun8-46/+43
The iucv code uses arrays as arguments. Even though this does not really cause a problem, it could be misleading, since the compiler turns array arguments into just a pointer argument. To be more precise this patch changes the array arguments into pointers. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21qeth: add layer 2 RX/TX checksum offloadingThomas Richter4-147/+285
Checksum offloading for send and receive is already supported for layer 3 (IP layer). This patch adds support for RX and TX hardware checksum offloading for layer 2 (MAC layer). The hardware calculates the checksum for IP UDP and TCP packets. This patch moves the hardware checksum offloading setup to the set of common functions in qeth_core_main.c. Layer 2 and layer 3 now simply call the same common functions. Also note that TX checksum offloading is always enabled. The device driver relies on the TCP/IP stack to make use of this feature. Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Reviewed-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21qeth: move OSA portname into deprecated statusUrsula Braun3-97/+11
An OSA-Express port name was required to identify a shared OSA port. All operating system instances that shared the port had to use the same port name. This requirement no longer applies. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21qeth: no write permission for readonly sysattrLakhvich Dmitriy1-1/+1
User is not allowed to write into bridge_state sysfs file. Fixed attribute not mislead the user Signed-off-by: Lakhvich Dmitriy <ldmitriy@ru.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Reported-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Reviewed-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Reviewed-by: Thomas Richter <tmricht@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21qeth: remove extraneous length from %pM formatEugene Crosser1-2/+2
Length specifier in the %pM format is not supported (at least, not documented). Remove it, and also an extraneous '&' for the array. Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21Merge branch 'for-upstream' of ↵David S. Miller31-552/+1605
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2015-09-18 Here's the first bluetooth-next pull request for the 4.4 kernel: - ieee802154 cleanups & fixes - debugfs support for the at86rf230 driver - Support for quirky (seemingly counterfeit) CSR Bluetooth controllers - Power management and device config improvements for Intel controllers - Fix for devices with incorrect advertising data length - Fix for closing HCI user channel socket Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21can: flexcan: enable interrupts atomically at the end of flexcan_chip_start()Marc Kleine-Budde1-1/+6
This patch defers the writing of the interrupts bits of the CTRL register order to enables all interrupts atomically at the the of the flexcan_chip_start() function. Suggested-by: Torsten Lang <torsten.lang@uweschneider.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-09-21can: flexcan: give member of flexcan_priv holding mailboxes a sensible nameMarc Kleine-Budde1-13/+13
This patch gives the member of flexcan_priv holding mailboxes a sensible name, by renaming from "cantxfg" to "mb": struct flexcan_priv::cantxfg -> struct flexcan_priv::mb Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-09-21can: flexcan: use pointer to struct regs instead of void pointer for mmio ↵Marc Kleine-Budde1-21/+21
address space This patch renames the pointer to the mmio address space from "base" to "regs" and changes the type from "void __iomem *" to "struct flexcan_regs __iomem *". Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-09-21can: flexcan: rename feature into quirksMarc Kleine-Budde1-10/+10
This patch renames the "features" member of struct flexcan_devtype_data to "quirks". The corresponding defines are renamed too, to reflect what they actually do. FLEXCAN_HAS_V10_FEATURES -> FLEXCAN_QUIRK_DISABLE_RXFG FLEXCAN_HAS_BROKEN_ERR_STATE -> FLEXCAN_QUIRK_BROKEN_ERR_STATE FLEXCAN_HAS_MECR_FEATURES -> FLEXCAN_QUIRK_DISABLE_MECR Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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