libxl: Use proper path for 'do_flr' functionality.

Commit f74035d3b1e827ff6ff1873e2f10feb011a8d0d2 "xl: PCI code cleanups"
introduced an regression where it changed the name from:
/sys/bus/pci/drivers/pciback/do_flr
to
libxl_sprintf(ctx, "%s/pciback/do_flr", SYSFS_PCI_DEV);

And SYSFS_PCI_DEV is "/sys/bus/pci/devices", meaning we would
do /sys/bus/pci/devices/pciback/do_flr. The proper define
should have been SYSFS_PCIBACK_DRIVER, which is what this patch does.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>

diff --git a/tools/libxl/libxl_pci.c b/tools/libxl/libxl_pci.c
index 44d04539eae3a2e56dcdb3d4bfbe9000881252e2..2782d0e9ceba01f88499a8d905a53185b7e677fd 100644 (file)
--- a/tools/libxl/libxl_pci.c
+++ b/tools/libxl/libxl_pci.c
@@ -965,7 +965,7 @@ static int libxl__device_pci_reset(libxl__gc *gc, unsigned int domain, unsigned
     char *reset;
     int fd, rc;
 
-    reset = libxl__sprintf(gc, "%s/pciback/do_flr", SYSFS_PCI_DEV);
+    reset = libxl__sprintf(gc, "%s/do_flr", SYSFS_PCIBACK_DRIVER);
     fd = open(reset, O_WRONLY);
     if (fd >= 0) {
         char *buf = libxl__sprintf(gc, PCI_BDF, domain, bus, dev, func);