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scsi: mpt3sas: Move a little data from the stack onto the heap 

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/mpt3sas/mpt3sas_scsih.c: In function ‘_scsih_scan_for_devices_after_reset’:
 drivers/scsi/mpt3sas/mpt3sas_scsih.c:10473:1: warning: the frame size of 1064 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Link: https://lore.kernel.org/r/20210303144631.3175331-31-lee.jones@linaro.org
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: MPT-FusionLinux.pdl@avagotech.com
Cc: MPT-FusionLinux.pdl@broadcom.com
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Lee Jones 2021-03-03 14:46:31 +00:00 committed by Martin K. Petersen
parent e015e0ded1
commit 2111ba8781
1 changed files with 26 additions and 12 deletions
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38
drivers/scsi/mpt3sas/mpt3sas_scsih.c
View File

@ -10219,8 +10219,8 @@ _scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
Mpi2ExpanderPage0_t expander_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi26PCIeDevicePage0_t pcie_device_pg0;
Mpi2RaidVolPage1_t volume_pg1;
Mpi2RaidVolPage0_t volume_pg0;
Mpi2RaidVolPage1_t *volume_pg1;
Mpi2RaidVolPage0_t *volume_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2EventIrConfigElement_t element;
Mpi2ConfigReply_t mpi_reply;
@ -10235,6 +10235,16 @@ _scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
u8 retry_count;
unsigned long flags;
volume_pg0 = kzalloc(sizeof(*volume_pg0), GFP_KERNEL);
if (!volume_pg0)
return;
volume_pg1 = kzalloc(sizeof(*volume_pg1), GFP_KERNEL);
if (!volume_pg1) {
kfree(volume_pg0);
return;
}
ioc_info(ioc, "scan devices: start\n");
_scsih_sas_host_refresh(ioc);
@ -10344,7 +10354,7 @@ _scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
/* volumes */
handle = 0xFFFF;
while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
&volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
@ -10352,15 +10362,15 @@ _scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(volume_pg1.DevHandle);
handle = le16_to_cpu(volume_pg1->DevHandle);
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_wwid(ioc,
le64_to_cpu(volume_pg1.WWID));
le64_to_cpu(volume_pg1->WWID));
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device)
continue;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
&volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t)))
continue;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
@ -10370,17 +10380,17 @@ _scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
if (volume_pg0->VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
volume_pg0->VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
volume_pg0->VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
element.VolDevHandle = volume_pg1.DevHandle;
element.VolDevHandle = volume_pg1->DevHandle;
ioc_info(ioc, "\tBEFORE adding volume: handle (0x%04x)\n",
volume_pg1.DevHandle);
volume_pg1->DevHandle);
_scsih_sas_volume_add(ioc, &element);
ioc_info(ioc, "\tAFTER adding volume: handle (0x%04x)\n",
volume_pg1.DevHandle);
volume_pg1->DevHandle);
}
}
@ -10468,6 +10478,10 @@ _scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
ioc_info(ioc, "\tAFTER adding pcie end device: handle (0x%04x), wwid(0x%016llx)\n",
handle, (u64)le64_to_cpu(pcie_device_pg0.WWID));
}
kfree(volume_pg0);
kfree(volume_pg1);
ioc_info(ioc, "\tpcie devices: pcie end devices complete\n");
ioc_info(ioc, "scan devices: complete\n");
}