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| author | Nathan Lynch <nathanl@linux.ibm.com> | 2019-06-27 00:30:44 -0500 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-30 22:53:49 +1000 |
| commit | 5d8b1f9dea17b4bf5e5f088f39eeab32c7e487be (patch) | |
| tree | ba6da9e63ef0594d80b6e13bd7007097bc020fbe /arch/powerpc/platforms/pseries/mobility.c | |
| parent | 494a66f34e00b6a1897b5a1ab150a19265696b17 (diff) | |
| download | lwn-5d8b1f9dea17b4bf5e5f088f39eeab32c7e487be.tar.gz lwn-5d8b1f9dea17b4bf5e5f088f39eeab32c7e487be.zip | |
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 <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190627053044.9238-3-nathanl@linux.ibm.com
Diffstat (limited to 'arch/powerpc/platforms/pseries/mobility.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/mobility.c | 5 |
1 files changed, 5 insertions, 0 deletions
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; } |