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| author | Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | 2017-02-10 00:59:28 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-02-13 07:26:22 -0500 |
| commit | 21c34006dce99949a83e9c46c543af28651db5db (patch) | |
| tree | d8da2fe7e3d6b3e2c2a9cbc996698ae5633c0a80 /drivers/scsi | |
| parent | cf4e55e7be0a4c009908803ff4c3140c9822c033 (diff) | |
| download | linux-stable-21c34006dce99949a83e9c46c543af28651db5db.tar.gz linux-stable-21c34006dce99949a83e9c46c543af28651db5db.tar.bz2 linux-stable-21c34006dce99949a83e9c46c543af28651db5db.zip | |
scsi: megaraid_sas: megasas_return_cmd does not memset IO frame to zero
Memset the IO frame to zero after release.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 10 |
2 files changed, 7 insertions, 4 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index efc01a374a6e..508516d412c9 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -2238,6 +2238,7 @@ struct megasas_instance { u8 is_rdpq; bool dev_handle; bool fw_sync_cache_support; + u32 mfi_frame_size; bool is_ventura; bool msix_combined; u16 max_raid_mapsize; diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 06001b4f9cad..30e390c14208 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -268,6 +268,8 @@ megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) cmd->scmd = NULL; cmd->frame_count = 0; cmd->flags = 0; + memset(cmd->frame, 0, instance->mfi_frame_size); + cmd->frame->io.context = cpu_to_le32(cmd->index); if (!fusion && reset_devices) cmd->frame->hdr.cmd = MFI_CMD_INVALID; list_add(&cmd->list, (&instance->cmd_pool)->next); @@ -3889,7 +3891,6 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) int i; u16 max_cmd; u32 sge_sz; - u32 total_sz; u32 frame_count; struct megasas_cmd *cmd; @@ -3917,12 +3918,13 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) * Total 192 byte (3 MFI frame of 64 byte) */ frame_count = instance->ctrl_context ? (3 + 1) : (15 + 1); - total_sz = MEGAMFI_FRAME_SIZE * frame_count; + instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count; /* * Use DMA pool facility provided by PCI layer */ instance->frame_dma_pool = pci_pool_create("megasas frame pool", - instance->pdev, total_sz, 256, 0); + instance->pdev, instance->mfi_frame_size, + 256, 0); if (!instance->frame_dma_pool) { dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); @@ -3966,7 +3968,7 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) return -ENOMEM; } - memset(cmd->frame, 0, total_sz); + memset(cmd->frame, 0, instance->mfi_frame_size); cmd->frame->io.context = cpu_to_le32(cmd->index); cmd->frame->io.pad_0 = 0; if (!instance->ctrl_context && reset_devices) |