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| author | Peter Hurley <peter@hurleysoftware.com> | 2015-02-24 14:25:13 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-26 18:18:20 +0100 |
| commit | 3b81c26c92414024a8046eb216782f3d599a5d77 (patch) | |
| tree | 637c59f576604aea344a76a98a09741e82d40b73 /include/linux | |
| parent | cd52b7599c1a1150719b2f6d20bce6b4f30dc8df (diff) | |
| download | linux-stable-3b81c26c92414024a8046eb216782f3d599a5d77.tar.gz linux-stable-3b81c26c92414024a8046eb216782f3d599a5d77.tar.bz2 linux-stable-3b81c26c92414024a8046eb216782f3d599a5d77.zip | |
serial: 8250: Only get RSA resource when required
The probe for Remote Supervisor Adapter is limited to port i/o
addresses which match one of the probe_rsa[] module parameter
addresses. Limit RSA resource acquire to matching i/o ports.
The result is a saner probe policy: only perform optional probes
when specified rather than by default.
NB: It is possible for userspace to set the port type == PORT_RSA
with ioctl(TIOCSSERIAL) and then autoconfig with ioctl(TIOCSERCONFIG),
which if it fails, may leave the port type set to PORT_RSA. Since
this may have previously resulted in a working RSA port, this behavior
is preserved.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions