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mei: bus: blacklist clients by number of connections

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Currently we support only clients with single connection
and fixed address clients so all other clients are blacklisted

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler 2015-07-23 15:08:45 +03:00 committed by Greg Kroah-Hartman
parent 5b6dca29b4
commit dd070a1694
1 changed files with 19 additions and 0 deletions
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19
drivers/misc/mei/bus-fixup.c
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@ -32,6 +32,24 @@
#define MEI_UUID_ANY NULL_UUID_LE
/**
* number_of_connections - determine whether an client be on the bus
* according number of connections
* We support only clients:
* 1. with single connection
* 2. and fixed clients (max_number_of_connections == 0)
*
* @cldev: me clients device
*/
static void number_of_connections(struct mei_cl_device *cldev)
{
dev_dbg(&cldev->dev, "running hook %s on %pUl\n",
__func__, mei_me_cl_uuid(cldev->me_cl));
if (cldev->me_cl->props.max_number_of_connections > 1)
cldev->do_match = 0;
}
/**
* blacklist - blacklist a client from the bus
*
@ -435,6 +453,7 @@ static struct mei_fixup {
const uuid_le uuid;
void (*hook)(struct mei_cl_device *cldev);
} mei_fixups[] = {
MEI_FIXUP(MEI_UUID_ANY, number_of_connections),
MEI_FIXUP(MEI_UUID_NFC_INFO, blacklist),
};