/* * V4L2 clock service * * Copyright (C) 2012-2013, Guennadi Liakhovetski * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * ATTENTION: This is a temporary API and it shall be replaced by the generic * clock API, when the latter becomes widely available. */ #ifndef MEDIA_V4L2_CLK_H #define MEDIA_V4L2_CLK_H #include #include #include #include struct module; struct device; struct clk; struct v4l2_clk { struct list_head list; const struct v4l2_clk_ops *ops; const char *dev_id; int enable; struct mutex lock; /* Protect the enable count */ atomic_t use_count; struct clk *clk; void *priv; }; struct v4l2_clk_ops { struct module *owner; int (*enable)(struct v4l2_clk *clk); void (*disable)(struct v4l2_clk *clk); unsigned long (*get_rate)(struct v4l2_clk *clk); int (*set_rate)(struct v4l2_clk *clk, unsigned long); }; struct v4l2_clk *v4l2_clk_register(const struct v4l2_clk_ops *ops, const char *dev_name, void *priv); void v4l2_clk_unregister(struct v4l2_clk *clk); struct v4l2_clk *v4l2_clk_get(struct device *dev, const char *id); void v4l2_clk_put(struct v4l2_clk *clk); int v4l2_clk_enable(struct v4l2_clk *clk); void v4l2_clk_disable(struct v4l2_clk *clk); unsigned long v4l2_clk_get_rate(struct v4l2_clk *clk); int v4l2_clk_set_rate(struct v4l2_clk *clk, unsigned long rate); struct module; struct v4l2_clk *__v4l2_clk_register_fixed(const char *dev_id, unsigned long rate, struct module *owner); void v4l2_clk_unregister_fixed(struct v4l2_clk *clk); static inline struct v4l2_clk *v4l2_clk_register_fixed(const char *dev_id, unsigned long rate) { return __v4l2_clk_register_fixed(dev_id, rate, THIS_MODULE); } #define V4L2_CLK_NAME_SIZE 64 #define v4l2_clk_name_i2c(name, size, adap, client) snprintf(name, size, \ "%d-%04x", adap, client) #define v4l2_clk_name_of(name, size, of_full_name) snprintf(name, size, \ "of-%s", of_full_name) #endif f='/cgit.cgi/linux/net-next.git/diff/tools/perf/util?h=nds-private-remove&id=63a6fff353d01da5a22b72670c434bf12fa0e3b8'>diff
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authorRobert Shearman <rshearma@brocade.com>2017-01-26 18:02:24 +0000
committerDavid S. Miller <davem@davemloft.net>2017-01-30 15:00:58 -0500
commit63a6fff353d01da5a22b72670c434bf12fa0e3b8 (patch)
tree5707ae376777271ab2d77411fed89afb515f0257 /tools/perf/util
parenta3a4de056ed5cfb22085173d8f0f13b0ca6b6d60 (diff)
net: Avoid receiving packets with an l3mdev on unbound UDP sockets
Packets arriving in a VRF currently are delivered to UDP sockets that aren't bound to any interface. TCP defaults to not delivering packets arriving in a VRF to unbound sockets. IP route lookup and socket transmit both assume that unbound means using the default table and UDP applications that haven't been changed to be aware of VRFs may not function correctly in this case since they may not be able to handle overlapping IP address ranges, or be able to send packets back to the original sender if required. So add a sysctl, udp_l3mdev_accept, to control this behaviour with it being analgous to the existing tcp_l3mdev_accept, namely to allow a process to have a VRF-global listen socket. Have this default to off as this is the behaviour that users will expect, given that there is no explicit mechanism to set unmodified VRF-unaware application into a default VRF. Signed-off-by: Robert Shearman <rshearma@brocade.com> Acked-by: David Ahern <dsa@cumulusnetworks.com> Tested-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/util')