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Stack allocated buffers cannot be used for DMA on all architectures so allocate hci_packet buffer using kmalloc. Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com> Link: https://lore.kernel.org/r/20210211053819.34858-1-ameynarkhede03@gmail.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>