powerpc/pseries: Use correct data types from pseries_hp_errorlog struct

[ Upstream commit b76e0d4215b6b622127ebcceaa7f603313ceaec4 ]

_be32 type is defined for some elements in pseries_hp_errorlog
struct but also used them u32 after be32_to_cpu() conversion.

Example: In handle_dlpar_errorlog()
hp_elog->_drc_u.drc_index = be32_to_cpu(hp_elog->_drc_u.drc_index);

And later assigned to u32 type
dlpar_cpu() - u32 drc_index = hp_elog->_drc_u.drc_index;

This incorrect usage is giving the following warnings and the
patch resolve these warnings with the correct assignment.

arch/powerpc/platforms/pseries/dlpar.c:398:53: sparse: sparse:
incorrect type in argument 1 (different base types) @@
expected unsigned int [usertype] drc_index @@
got restricted __be32 [usertype] drc_index @@
...
arch/powerpc/platforms/pseries/dlpar.c:418:43: sparse: sparse:
incorrect type in assignment (different base types) @@
expected restricted __be32 [usertype] drc_count @@
got unsigned int [usertype] @@

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202408182142.wuIKqYae-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202408182302.o7QRO45S-lkp@intel.com/
Signed-off-by: Haren Myneni <haren@linux.ibm.com>

v3:
- Fix warnings from using incorrect data types in pseries_hp_errorlog
  struct
v2:
- Remove pr_info() and TODO comments
- Update more information in the commit logs

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240822025028.938332-1-haren@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

4 files changed, 10 insertions, 27 deletions

diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 47f8eabd1bee..9873b916b237 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -334,23 +334,6 @@ int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_elog)
 {
 	int rc;
 
-	/* pseries error logs are in BE format, convert to cpu type */
-	switch (hp_elog->id_type) {
-	case PSERIES_HP_ELOG_ID_DRC_COUNT:
-		hp_elog->_drc_u.drc_count =
-				be32_to_cpu(hp_elog->_drc_u.drc_count);
-		break;
-	case PSERIES_HP_ELOG_ID_DRC_INDEX:
-		hp_elog->_drc_u.drc_index =
-				be32_to_cpu(hp_elog->_drc_u.drc_index);
-		break;
-	case PSERIES_HP_ELOG_ID_DRC_IC:
-		hp_elog->_drc_u.ic.count =
-				be32_to_cpu(hp_elog->_drc_u.ic.count);
-		hp_elog->_drc_u.ic.index =
-				be32_to_cpu(hp_elog->_drc_u.ic.index);
-	}
-
 	switch (hp_elog->resource) {
 	case PSERIES_HP_ELOG_RESOURCE_MEM:
 		rc = dlpar_memory(hp_elog);
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index e62835a12d73..6838a0fcda29 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -757,7 +757,7 @@ int dlpar_cpu(struct pseries_hp_errorlog *hp_elog)
 	u32 drc_index;
 	int rc;
 
-	drc_index = hp_elog->_drc_u.drc_index;
+	drc_index = be32_to_cpu(hp_elog->_drc_u.drc_index);
 
 	lock_device_hotplug();
 
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 3fe3ddb30c04..38dc4f7c9296 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -817,16 +817,16 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
 	case PSERIES_HP_ELOG_ACTION_ADD:
 		switch (hp_elog->id_type) {
 		case PSERIES_HP_ELOG_ID_DRC_COUNT:
-			count = hp_elog->_drc_u.drc_count;
+			count = be32_to_cpu(hp_elog->_drc_u.drc_count);
 			rc = dlpar_memory_add_by_count(count);
 			break;
 		case PSERIES_HP_ELOG_ID_DRC_INDEX:
-			drc_index = hp_elog->_drc_u.drc_index;
+			drc_index = be32_to_cpu(hp_elog->_drc_u.drc_index);
 			rc = dlpar_memory_add_by_index(drc_index);
 			break;
 		case PSERIES_HP_ELOG_ID_DRC_IC:
-			count = hp_elog->_drc_u.ic.count;
-			drc_index = hp_elog->_drc_u.ic.index;
+			count = be32_to_cpu(hp_elog->_drc_u.ic.count);
+			drc_index = be32_to_cpu(hp_elog->_drc_u.ic.index);
 			rc = dlpar_memory_add_by_ic(count, drc_index);
 			break;
 		default:
@@ -838,16 +838,16 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
 	case PSERIES_HP_ELOG_ACTION_REMOVE:
 		switch (hp_elog->id_type) {
 		case PSERIES_HP_ELOG_ID_DRC_COUNT:
-			count = hp_elog->_drc_u.drc_count;
+			count = be32_to_cpu(hp_elog->_drc_u.drc_count);
 			rc = dlpar_memory_remove_by_count(count);
 			break;
 		case PSERIES_HP_ELOG_ID_DRC_INDEX:
-			drc_index = hp_elog->_drc_u.drc_index;
+			drc_index = be32_to_cpu(hp_elog->_drc_u.drc_index);
 			rc = dlpar_memory_remove_by_index(drc_index);
 			break;
 		case PSERIES_HP_ELOG_ID_DRC_IC:
-			count = hp_elog->_drc_u.ic.count;
-			drc_index = hp_elog->_drc_u.ic.index;
+			count = be32_to_cpu(hp_elog->_drc_u.ic.count);
+			drc_index = be32_to_cpu(hp_elog->_drc_u.ic.index);
 			rc = dlpar_memory_remove_by_ic(count, drc_index);
 			break;
 		default:
diff --git a/arch/powerpc/platforms/pseries/pmem.c b/arch/powerpc/platforms/pseries/pmem.c
index 3c290b9ed01b..0f1d45f32e4a 100644
--- a/arch/powerpc/platforms/pseries/pmem.c
+++ b/arch/powerpc/platforms/pseries/pmem.c
@@ -121,7 +121,7 @@ int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog)
 		return -EINVAL;
 	}
 
-	drc_index = hp_elog->_drc_u.drc_index;
+	drc_index = be32_to_cpu(hp_elog->_drc_u.drc_index);
 
 	lock_device_hotplug();