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| author | Maciej Żenczykowski <maze@google.com> | 2018-09-20 13:29:42 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-02 12:05:29 -0700 |
| commit | e0a2e73e501c77037c8756137e87b12c7c3c9793 (patch) | |
| tree | 1782c870204f6fdeae2b370e5c45867f4167a240 /tools/usb | |
| parent | 7d98091532491669724b3b5d4e1d7f01a5dd7efa (diff) | |
| download | linux-e0a2e73e501c77037c8756137e87b12c7c3c9793.tar.gz linux-e0a2e73e501c77037c8756137e87b12c7c3c9793.tar.bz2 linux-e0a2e73e501c77037c8756137e87b12c7c3c9793.zip | |
usbip: fix vhci_hcd controller counting
Without this usbip fails on a machine with devices
that lexicographically come after vhci_hcd.
ie.
$ ls -l /sys/devices/platform
...
drwxr-xr-x. 4 root root 0 Sep 19 16:21 serial8250
-rw-r--r--. 1 root root 4096 Sep 19 23:50 uevent
drwxr-xr-x. 6 root root 0 Sep 20 13:15 vhci_hcd.0
drwxr-xr-x. 4 root root 0 Sep 19 16:22 w83627hf.656
Because it detects 'w83627hf.656' as another vhci_hcd controller,
and then fails to be able to talk to it.
Note: this doesn't actually fix usbip's support for multiple
controllers... that's still broken for other reasons
("vhci_hcd.0" is hardcoded in a string macro), but is enough to
actually make it work on the above machine.
See also:
https://bugzilla.redhat.com/show_bug.cgi?id=1631148
Cc: Jonathan Dieter <jdieter@gmail.com>
Cc: Valentina Manea <valentina.manea.m@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Maciej Żenczykowski <zenczykowski@gmail.com>
Acked-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Tested-by: Jonathan Dieter <jdieter@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/usb')
| -rw-r--r-- | tools/usb/usbip/libsrc/vhci_driver.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/usb/usbip/libsrc/vhci_driver.c b/tools/usb/usbip/libsrc/vhci_driver.c index 4204359c9fee..8159fd98680b 100644 --- a/tools/usb/usbip/libsrc/vhci_driver.c +++ b/tools/usb/usbip/libsrc/vhci_driver.c @@ -150,7 +150,7 @@ static int get_nports(struct udev_device *hc_device) static int vhci_hcd_filter(const struct dirent *dirent) { - return strcmp(dirent->d_name, "vhci_hcd") >= 0; + return !strncmp(dirent->d_name, "vhci_hcd.", 9); } static int get_ncontrollers(void) |