Commit 065cf415 authored by Reinhard Speyerer's avatar Reinhard Speyerer Committed by Greg Kroah-Hartman

qmi_wwan: extend permitted QMAP mux_id value range

[ Upstream commit 36815b416fa48766ac5a98e4b2dc3ebc5887222e ]

Permit mux_id values up to 254 to be used in qmimux_register_device()
for compatibility with ip(8) and the rmnet driver.

Fixes: c6adf779 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: default avatarReinhard Speyerer <rspmn@arcor.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 4f8544dd
......@@ -29,7 +29,7 @@ Contact: Bjørn Mork <bjorn@mork.no>
Description:
Unsigned integer.
Write a number ranging from 1 to 127 to add a qmap mux
Write a number ranging from 1 to 254 to add a qmap mux
based network device, supported by recent Qualcomm based
modems.
......@@ -46,5 +46,5 @@ Contact: Bjørn Mork <bjorn@mork.no>
Description:
Unsigned integer.
Write a number ranging from 1 to 127 to delete a previously
Write a number ranging from 1 to 254 to delete a previously
created qmap mux based network device.
......@@ -363,8 +363,8 @@ static ssize_t add_mux_store(struct device *d, struct device_attribute *attr, c
if (kstrtou8(buf, 0, &mux_id))
return -EINVAL;
/* mux_id [1 - 0x7f] range empirically found */
if (mux_id < 1 || mux_id > 0x7f)
/* mux_id [1 - 254] for compatibility with ip(8) and the rmnet driver */
if (mux_id < 1 || mux_id > 254)
return -EINVAL;
if (!rtnl_trylock())
......
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