6.6-stable review patch. If anyone has any objections, please let me know.
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From: Haren Myneni haren@linux.ibm.com
[ 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 --- arch/powerpc/platforms/pseries/dlpar.c | 17 ----------------- arch/powerpc/platforms/pseries/hotplug-cpu.c | 2 +- arch/powerpc/platforms/pseries/hotplug-memory.c | 16 ++++++++-------- arch/powerpc/platforms/pseries/pmem.c | 2 +- 4 files changed, 10 insertions(+), 27 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index 47f8eabd1bee3..9873b916b2370 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 e62835a12d73f..6838a0fcda296 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 4adca5b61daba..95ff84c55cb14 100644 --- a/arch/powerpc/platforms/pseries/hotplug-memory.c +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c @@ -811,16 +811,16 @@ 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: @@ -832,16 +832,16 @@ 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 3c290b9ed01b3..0f1d45f32e4a4 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();