#ifndef __NET_WIRELESS_NL80211_H
#define __NET_WIRELESS_NL80211_H

#include "core.h"

int nl80211_init(void);
void nl80211_exit(void);
void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
			  enum nl80211_commands cmd);
void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
			  struct wireless_dev *wdev,
			  enum nl80211_commands cmd);
void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
			     struct wireless_dev *wdev);
struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
				       struct wireless_dev *wdev, bool aborted);
void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
			   struct sk_buff *msg);
void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
			     struct net_device *netdev, u32 cmd);
void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
				     struct regulatory_request *request);

static inline void
nl80211_send_reg_change_event(struct regulatory_request *request)
{
	nl80211_common_reg_change_event(NL80211_CMD_REG_CHANGE, request);
}

static inline void
nl80211_send_wiphy_reg_change_event(struct regulatory_request *request)
{
	nl80211_common_reg_change_event(NL80211_CMD_WIPHY_REG_CHANGE, request);
}

void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
			  struct net_device *netdev,
			  const u8 *buf, size_t len, gfp_t gfp);
void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
			   struct net_device *netdev,
			   const u8 *buf, size_t len, gfp_t gfp,
			   int uapsd_queues);
void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
			 struct net_device *netdev,
			 const u8 *buf, size_t len, gfp_t gfp);
void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
			   struct net_device *netdev,
			   const u8 *buf, size_t len, gfp_t gfp);
void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
			       struct net_device *netdev,
			       const u8 *addr, gfp_t gfp);
void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
				struct net_device *netdev,
				const u8 *addr, gfp_t gfp);
void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
				 struct net_device *netdev, const u8 *bssid,
				 const u8 *req_ie, size_t req_ie_len,
				 const u8 *resp_ie, size_t resp_ie_len,
				 int status,
				 enum nl80211_timeout_reason timeout_reason,
				 gfp_t gfp);
void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
			 struct net_device *netdev, const u8 *bssid,
			 const u8 *req_ie, size_t req_ie_len,
			 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
			       struct net_device *netdev, u16 reason,
			       const u8 *ie, size_t ie_len, bool from_ap);

void
nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
			    struct net_device *netdev, const u8 *addr,
			    enum nl80211_key_type key_type,
			    int key_id, const u8 *tsc, gfp_t gfp);

void
nl80211_send_beacon_hint_event(struct wiphy *wiphy,
			       struct ieee80211_channel *channel_before,
			       struct ieee80211_channel *channel_after);

void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
			     struct net_device *netdev, const u8 *bssid,
			     gfp_t gfp);

int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
		      struct wireless_dev *wdev, u32 nlpid,
		      int freq, int sig_dbm,
		      const u8 *buf, size_t len, u32 flags, gfp_t gfp);

void
nl80211_radar_notify(struct cfg80211_registered_device *rdev,
		     const struct cfg80211_chan_def *chandef,
		     enum nl80211_radar_event event,
		     struct net_device *netdev, gfp_t gfp);

void nl80211_send_ap_stopped(struct wireless_dev *wdev);

void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev);

#endif /* __NET_WIRELESS_NL80211_H */
><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='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>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/fs/befs/Kconfig?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>c8f325a59cfc718d13a50fbc746ed9b415c25e92</a> (<a href='/cgit.cgi/linux/net-next.git/patch/fs/befs/Kconfig?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/fs/befs/Kconfig?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>fs/befs/Kconfig</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/befs/Kconfig?id=bf29bddf0417a4783da3b24e8c9e017ac649326f'>bf29bddf0417a4783da3b24e8c9e017ac649326f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/fs/befs/Kconfig?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 'fs/befs/Kconfig')</div><table summary='diffstat' class='diffstat'>