Marc-André Lureau d09c4a4787 chardev: fix backend events regression with mux chardev ... Kirill noticied that on recent versions on QEMU he was not able to trigger SysRq to invoke debug capabilites of Linux Kernel. He tracked it down to qemu_chr_be_event() ignoring CHR_EVENT_BREAK due s->be being NULL. The bug was introduced in 2.8, commit a4afa548fc ("char: move front end handlers in CharBackend"). Since the commit, the qemu_chr_be_event() failed to deliver CHR_EVENT_BREAK due to qemu_chr_fe_init() does not set s->be in case of mux. Let's fix this by teaching mux to send an event to the frontend with the focus. Reported-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Fixes: a4afa548fc ("char: move front end handlers in CharBackend") Message-Id: <20171103152824.21948-2-marcandre.lureau@redhat.com> Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2017-12-21 09:30:32 +01:00
..
char-fd.h	char-fd: remove useless chr pointer	2017-08-01 17:27:33 +02:00
char-fe.h	char: avoid chardevice direct access	2017-07-14 11:04:33 +02:00
char-io.h
char-mux.h	char: move CharBackend handling in char-fe unit	2017-06-02 11:33:53 +04:00
char-parallel.h	char: fix alias devices regression	2017-06-08 17:57:36 +04:00
char-serial.h	char: fix alias devices regression	2017-06-08 17:57:36 +04:00
char-win-stdio.h
char-win.h
char.h	chardev: fix backend events regression with mux chardev	2017-12-21 09:30:32 +01:00