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2015-10-08random32: add prandom_seed_full_state helperDaniel Borkmann1-16/+21
Factor out the full reseed handling code that populates the state through get_random_bytes() and runs prandom_warmup(). The resulting prandom_seed_full_state() will be used later on in more than the current __prandom_reseed() user. Fix also two minor whitespace issues along the way. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08once: make helper generic for calling functions onceHannes Frederic Sowa2-35/+76
Make the get_random_once() helper generic enough, so that functions in general would only be called once, where one user of this is then net_get_random_once(). The only implementation specific call is to get_random_bytes(), all the rest of this *_once() facility would be duplicated among different subsystems otherwise. The new DO_ONCE() helper will be used by prandom() later on, but might also be useful for other scenarios/subsystems as well where a one-time initialization in often-called, possibly fast path code could occur. Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08net: move net_get_random_once to libHannes Frederic Sowa5-67/+84
There's no good reason why users outside of networking should not be using this facility, f.e. for initializing their seeds. Therefore, make it accessible from there as get_random_once(). Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08net: Do not drop to make_route if oif is l3mdevDavid Ahern1-1/+2
Commit deaa0a6a930 ("net: Lookup actual route when oif is VRF device") exposed a bug in __ip_route_output_key_hash for VRF devices: on FIB lookup failure if the oif is specified the current logic drops to make_route on the assumption that the route tables are wrong. For VRF/L3 master devices this leads to wrong dst entries and route lookups. For example: $ ip route ls table vrf-red unreachable default broadcast 10.2.1.0 dev eth1 proto kernel scope link src 10.2.1.2 10.2.1.0/24 dev eth1 proto kernel scope link src 10.2.1.2 local 10.2.1.2 dev eth1 proto kernel scope host src 10.2.1.2 broadcast 10.2.1.255 dev eth1 proto kernel scope link src 10.2.1.2 $ ip route get oif vrf-red 1.1.1.1 1.1.1.1 dev vrf-red src 10.0.0.2 cache With this patch: $ ip route get oif vrf-red 1.1.1.1 RTNETLINK answers: No route to host which is the correct response based on the default route Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08bpf, skb_do_redirect: clear sender_cpu before xmitDaniel Borkmann1-0/+1
Similar to commit c29390c6dfee ("xps: must clear sender_cpu before forwarding"), we also need to clear the skb->sender_cpu when moving from RX to TX via skb_do_redirect() due to the shared location of napi_id (used on RX) and sender_cpu (used on TX). Fixes: 27b29f63058d ("bpf: add bpf_redirect() helper") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08net: hns: fix 32-bit build warningArnd Bergmann1-6/+6
The recently added hns driver causes a build warning in ARM allmodconfig builds: drivers/net/ethernet/hisilicon/hns/hnae.c: In function 'handles_show': drivers/net/ethernet/hisilicon/hns/hnae.c:452:13: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] j, (u64)h->qs[i]->io_base); ^ This removes the pointless cast and prints the pointer address using the "%p" format string in all three locations. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08net: Microchip encx24j600 driverJon Ringle5-0/+2087
This ethernet driver supports the Micorchip enc424j600/626j600 Ethernet controller over a SPI bus interface. This driver makes use of the regmap API to optimize access to registers by caching registers where possible. Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/39935b.pdf Signed-off-by: Jon Ringle <jringle@gridpoint.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08net: phy: bcm7xxx: Modified to use global core register definesArun Parameswaran1-6/+3
Modified the bcm7xxx phy driver to remove local core register defines and use the common ones from "include/linux/brcmphy.h" Signed-off-by: Arun Parameswaran <arunp@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08net: phy: Broadcom Cygnus internal Etherent PHY driverArun Parameswaran4-0/+179
Add support for the Broadcom Cygnus SoCs internal PHY's. The PHYs are 1000M/100M/10M capable with support for 'EEE' and 'APD' (Auto Power Down). This driver supports the following Broadcom Cygnus SoCs: - BCM583XX (BCM58300, BCM58302, BCM58303, BCM58305) - BCM113XX (BCM11300, BCM11320, BCM11350, BCM11360) The PHY's on these SoC's require some workarounds for stable operation, both during configuration time and during suspend/resume. This driver handles the application of the workarounds. Signed-off-by: Arun Parameswaran <arunp@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08net: phy: Add Broadcom phy library for common interfacesArun Parameswaran8-256/+332
This patch adds the Broadcom phy library to consolidate common interfaces shared by Broadcom phy's. Moved the common interfaces to the 'bcm-phy-lib.c' and updated the Broadcom PHY drivers to use the new APIs. Signed-off-by: Arun Parameswaran <arunp@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08net: phy: Broadcom iProc MDIO bus driverArun Parameswaran3-0/+223
This patch adds support for the Broadcom iProc MDIO bus interface. The MDIO interface can be found in the Broadcom iProc family Soc's. The MDIO bus is accessed using a combination of command and data registers. This MDIO driver provides access to the Etherent GPHY's connected to the MDIO bus. Signed-off-by: Arun Parameswaran <arunp@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>