/*
 * net/sched/act_meta_prio.c IFE skb->priority metadata module
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 *
 * copyright Jamal Hadi Salim (2015)
 *
*/

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>
#include <linux/module.h>
#include <linux/init.h>
#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <uapi/linux/tc_act/tc_ife.h>
#include <net/tc_act/tc_ife.h>

static int skbprio_check(struct sk_buff *skb, struct tcf_meta_info *e)
{
	return ife_check_meta_u32(skb->priority, e);
}

static int skbprio_encode(struct sk_buff *skb, void *skbdata,
			  struct tcf_meta_info *e)
{
	u32 ifeprio = skb->priority; /* avoid having to cast skb->priority*/

	return ife_encode_meta_u32(ifeprio, skbdata, e);
}

static int skbprio_decode(struct sk_buff *skb, void *data, u16 len)
{
	u32 ifeprio = *(u32 *)data;

	skb->priority = ntohl(ifeprio);
	return 0;
}

static struct tcf_meta_ops ife_prio_ops = {
	.metaid = IFE_META_PRIO,
	.metatype = NLA_U32,
	.name = "skbprio",
	.synopsis = "skb prio metadata",
	.check_presence = skbprio_check,
	.encode = skbprio_encode,
	.decode = skbprio_decode,
	.get = ife_get_meta_u32,
	.alloc = ife_alloc_meta_u32,
	.owner = THIS_MODULE,
};

static int __init ifeprio_init_module(void)
{
	return register_ife_op(&ife_prio_ops);
}

static void __exit ifeprio_cleanup_module(void)
{
	unregister_ife_op(&ife_prio_ops);
}

module_init(ifeprio_init_module);
module_exit(ifeprio_cleanup_module);

MODULE_AUTHOR("Jamal Hadi Salim(2015)");
MODULE_DESCRIPTION("Inter-FE skb prio metadata action");
MODULE_LICENSE("GPL");
MODULE_ALIAS_IFE_META(IFE_META_PRIO);
ommit/include/uapi/asm-generic/unistd.h?id=6bdded59c8933940ac7e5b416448276ac89d1144'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/uapi/asm-generic/unistd.h?id=6bdded59c8933940ac7e5b416448276ac89d1144'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/uapi/asm-generic/unistd.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=6bdded59c8933940ac7e5b416448276ac89d1144'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?id=6bdded59c8933940ac7e5b416448276ac89d1144'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi?id=6bdded59c8933940ac7e5b416448276ac89d1144'>uapi</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/asm-generic?id=6bdded59c8933940ac7e5b416448276ac89d1144'>asm-generic</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/asm-generic/unistd.h?id=6bdded59c8933940ac7e5b416448276ac89d1144'>unistd.h</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/asm-generic/unistd.h?id=6bdded59c8933940ac7e5b416448276ac89d1144&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
ue='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Alexandre Bailon &lt;abailon@baylibre.com&gt;</td><td class='right'>2016-12-09 17:59:33 +0100</td></tr>
<tr><th>committer</th><td>Sekhar Nori &lt;nsekhar@ti.com&gt;</td><td class='right'>2017-01-02 16:15:07 +0530</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=d1df1e01af1d7c91e48204b9eb8b9f20cdb90700'>d1df1e01af1d7c91e48204b9eb8b9f20cdb90700</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=d1df1e01af1d7c91e48204b9eb8b9f20cdb90700'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=d1df1e01af1d7c91e48204b9eb8b9f20cdb90700'>e23eac4faf8313329646723c3081214b095d2f73</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=48cd30b49527f04078ef7de217cc188157f76ba6'>48cd30b49527f04078ef7de217cc188157f76ba6</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=d1df1e01af1d7c91e48204b9eb8b9f20cdb90700&amp;id2=48cd30b49527f04078ef7de217cc188157f76ba6'>diff</a>)</td></tr></table>
<div class='commit-subject'>ARM: davinci: da8xx: Fix sleeping function called from invalid context</div><div class='commit-msg'>Everytime the usb20 phy is enabled, there is a
"sleeping function called from invalid context" BUG.
In addition, there is a recursive locking happening
because of the recurse call to clk_enable().

clk_enable() from arch/arm/mach-davinci/clock.c uses
spin_lock_irqsave() before to invoke the callback
usb20_phy_clk_enable(). usb20_phy_clk_enable() uses
clk_get() and clk_enable_prepapre() which may sleep.

Replace clk_prepare_enable() by davinci_clk_enable().

Signed-off-by: Alexandre Bailon &lt;abailon@baylibre.com&gt;
Suggested-by: David Lechner &lt;david@lechnology.com&gt;
[nsekhar@ti.com: minor commit description adjustment]
Signed-off-by: Sekhar Nori &lt;nsekhar@ti.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=d1df1e01af1d7c91e48204b9eb8b9f20cdb90700'>Diffstat</a></div><table summary='diffstat' class='diffstat'>