diff options
| author |   Alexander Usyskin <alexander.usyskin@intel.com> | 2015-05-04 09:43:57 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-24 11:13:48 -0700 |
| commit | eeabfcf5a92ae3316b23f2da6a2bb5ba60a1b072 (patch) | |
| tree | 434747825df01e086aab369d55e3143ef4f95382 /drivers/misc/mei/main.c | |
| parent | mei: support for fixed address clients (diff) | |
| download | linux-dev-eeabfcf5a92ae3316b23f2da6a2bb5ba60a1b072.tar.xz linux-dev-eeabfcf5a92ae3316b23f2da6a2bb5ba60a1b072.zip | |
mei: connection to fixed address clients from user-space
This should be used for debug only.
The feaure is gated by "allow_fixed_address" control exposed in debugfs.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/main.c')
| -rw-r--r-- | drivers/misc/mei/main.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index a69636594150..2887e5607cd6 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -215,6 +215,11 @@ static ssize_t mei_read(struct file *file, char __user *ubuf, cb = mei_cl_read_cb(cl, file); if (!cb) { + if (mei_cl_is_fixed_address(cl) && dev->allow_fixed_address) { + cb = mei_cl_read_cb(cl, NULL); + if (cb) + goto copy_buffer; + } rets = 0; goto out; } @@ -389,7 +394,8 @@ static int mei_ioctl_connect_client(struct file *file, /* find ME client we're trying to connect to */ me_cl = mei_me_cl_by_uuid(dev, &data->in_client_uuid); - if (!me_cl || me_cl->props.fixed_address) { + if (!me_cl || + (me_cl->props.fixed_address && !dev->allow_fixed_address)) { dev_dbg(dev->dev, "Cannot connect to FW Client UUID = %pUl\n", &data->in_client_uuid); mei_me_cl_put(me_cl); |