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Bluetooth: reorganize functions from hci_sock_sendmsg()
Since userfaultfd mechanism allows sleeping with kernel lock held, avoiding page fault with kernel lock held where possible will make the module more robust. This patch just brings memcpy_from_msg() calls to out of sock lock. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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