#ifndef _UDP4_IMPL_H
#define _UDP4_IMPL_H
#include <net/udp.h>
#include <net/udplite.h>
#include <net/protocol.h>
#include <net/inet_common.h>

int __udp4_lib_rcv(struct sk_buff *, struct udp_table *, int);
void __udp4_lib_err(struct sk_buff *, u32, struct udp_table *);

int udp_v4_get_port(struct sock *sk, unsigned short snum);

int udp_setsockopt(struct sock *sk, int level, int optname,
		   char __user *optval, unsigned int optlen);
int udp_getsockopt(struct sock *sk, int level, int optname,
		   char __user *optval, int __user *optlen);

#ifdef CONFIG_COMPAT
int compat_udp_setsockopt(struct sock *sk, int level, int optname,
			  char __user *optval, unsigned int optlen);
int compat_udp_getsockopt(struct sock *sk, int level, int optname,
			  char __user *optval, int __user *optlen);
#endif
int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
		int flags, int *addr_len);
int udp_sendpage(struct sock *sk, struct page *page, int offset, size_t size,
		 int flags);
int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
void udp_destroy_sock(struct sock *sk);

#ifdef CONFIG_PROC_FS
int udp4_seq_show(struct seq_file *seq, void *v);
#endif
#endif	/* _UDP4_IMPL_H */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=a2ca3d617944417e9dd5f09fc8a4549cda115f4f'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?id=a2ca3d617944417e9dd5f09fc8a4549cda115f4f'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ieee802154?id=a2ca3d617944417e9dd5f09fc8a4549cda115f4f'>ieee802154</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ieee802154/core.h?id=a2ca3d617944417e9dd5f09fc8a4549cda115f4f'>core.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/net/ieee802154/core.h?id=a2ca3d617944417e9dd5f09fc8a4549cda115f4f&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
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<tr><th>author</th><td>Ard Biesheuvel &lt;ard.biesheuvel@linaro.org&gt;</td><td class='right'>2017-02-01 17:45:02 +0000</td></tr>
<tr><th>committer</th><td>Ingo Molnar &lt;mingo@kernel.org&gt;</td><td class='right'>2017-02-01 21:17:49 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/mac80211/wme.h?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>c8f325a59cfc718d13a50fbc746ed9b415c25e92</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/mac80211/wme.h?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>d53fbdac9d0781e39a13b2ac6b2bd258cf3b4140</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/mac80211/wme.h?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>net/mac80211/wme.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/mac80211/wme.h?id=bf29bddf0417a4783da3b24e8c9e017ac649326f'>bf29bddf0417a4783da3b24e8c9e017ac649326f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/mac80211/wme.h?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92&amp;id2=bf29bddf0417a4783da3b24e8c9e017ac649326f'>diff</a>)</td></tr></table>
<div class='commit-subject'>efi/fdt: Avoid FDT manipulation after ExitBootServices()</div><div class='commit-msg'>Some AArch64 UEFI implementations disable the MMU in ExitBootServices(),
after which unaligned accesses to RAM are no longer supported.

Commit:

  abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel")

fixed an issue in the memory map handling of the stub FDT code, but
inadvertently created an issue with such firmware, by moving some
of the FDT manipulation to after the invocation of ExitBootServices().

Given that the stub's libfdt implementation uses the ordinary, accelerated
string functions, which rely on hardware handling of unaligned accesses,
manipulating the FDT with the MMU off may result in alignment faults.

So fix the situation by moving the update_fdt_memmap() call into the
callback function invoked by efi_exit_boot_services() right before it
calls the ExitBootServices() UEFI service (which is arguably a better
place for it anyway)

Note that disabling the MMU in ExitBootServices() is not compliant with
the UEFI spec, and carries great risk due to the fact that switching from
cached to uncached memory accesses halfway through compiler generated code
(i.e., involving a stack) can never be done in a way that is architecturally
safe.

Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel")
Signed-off-by: Ard Biesheuvel &lt;ard.biesheuvel@linaro.org&gt;
Tested-by: Riku Voipio &lt;riku.voipio@linaro.org&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Cc: mark.rutland@arm.com
Cc: linux-efi@vger.kernel.org
Cc: matt@codeblueprint.co.uk
Cc: leif.lindholm@linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>Diffstat</a> (limited to 'net/mac80211/wme.h')</div><table summary='diffstat' class='diffstat'>