From 5d8b1f9dea17b4bf5e5f088f39eeab32c7e487be Mon Sep 17 00:00:00 2001 From: Nathan Lynch Date: Thu, 27 Jun 2019 00:30:44 -0500 Subject: powerpc/pseries/mobility: Add pr_debug() for device tree changes When investigating issues with partition migration or resource reassignments it is helpful to have a log of which nodes and properties in the device tree have changed. Use pr_debug() so it's easy to enable these at runtime with the dynamic debug facility. Signed-off-by: Nathan Lynch Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20190627053044.9238-3-nathanl@linux.ibm.com --- arch/powerpc/platforms/pseries/mobility.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/powerpc') diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c index 0ede49a35121..d6f4162478a5 100644 --- a/arch/powerpc/platforms/pseries/mobility.c +++ b/arch/powerpc/platforms/pseries/mobility.c @@ -67,6 +67,8 @@ static int delete_dt_node(__be32 phandle) if (!dn) return -ENOENT; + pr_debug("removing node %pOFfp\n", dn); + dlpar_detach_node(dn); of_node_put(dn); return 0; @@ -125,6 +127,7 @@ static int update_dt_property(struct device_node *dn, struct property **prop, } if (!more) { + pr_debug("updating node %pOF property %s\n", dn, name); of_update_property(dn, new_prop); *prop = NULL; } @@ -243,6 +246,8 @@ static int add_dt_node(__be32 parent_phandle, __be32 drc_index) if (rc) dlpar_free_cc_nodes(dn); + pr_debug("added node %pOFfp\n", dn); + of_node_put(parent_dn); return rc; } -- cgit v1.2.3