scsi: aacraid: Untangle targets setup from report phy luns

Remove function call to process targets from the report phy luns function
and make it a function in its own right. This will help understand the
flow of the code.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 5a95883794c183249b9b9146fad402d6a8d22c62..629a04d90e5c214f225c7b963fa343422486a21b 100644 (file)
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1799,14 +1799,16 @@ static int aac_issue_safw_bmic_identify(struct aac_dev *dev,
  *
  *     Update our hba map with the information gathered from the FW
  */
-static void aac_set_safw_attr_all_targets(struct aac_dev *dev,
-               struct aac_ciss_phys_luns_resp *phys_luns, int rescan)
+static void aac_set_safw_attr_all_targets(struct aac_dev *dev, int rescan)
 {
        /* ok and extended reporting */
        u32 lun_count, nexus;
        u32 i, bus, target;
        u8 expose_flag, attribs;
        u8 devtype;
+       struct aac_ciss_phys_luns_resp *phys_luns;
+
+       phys_luns = dev->safw_phys_luns;
 
        lun_count = ((phys_luns->list_length[0] << 24)
                        + (phys_luns->list_length[1] << 16)
@@ -1852,6 +1854,12 @@ static void aac_set_safw_attr_all_targets(struct aac_dev *dev,
        }
 }
 
+static inline void aac_free_safw_ciss_luns(struct aac_dev *dev)
+{
+       kfree(dev->safw_phys_luns);
+       dev->safw_phys_luns = NULL;
+}
+
 /**
  *     aac_get_safw_ciss_luns()        Process topology change
  *     @dev:           aac_dev structure
@@ -1872,7 +1880,7 @@ static int aac_get_safw_ciss_luns(struct aac_dev *dev, int rescan)
                (AAC_MAX_TARGETS - 1) * sizeof(struct _ciss_lun);
        phys_luns = kmalloc(datasize, GFP_KERNEL);
        if (phys_luns == NULL)
-               goto err_out;
+               goto out;
 
        memset(&srbu, 0, sizeof(struct aac_srb_unit));
 
@@ -1885,22 +1893,36 @@ static int aac_get_safw_ciss_luns(struct aac_dev *dev, int rescan)
 
        rcode = aac_send_safw_bmic_cmd(dev, &srbu, phys_luns, datasize);
        if (unlikely(rcode < 0))
-               goto err_out;
+               goto mem_free_all;
 
-       /* analyse data */
-       if (rcode >= 0 && phys_luns->resp_flag == 2) {
-               /* ok and extended reporting */
-               aac_set_safw_attr_all_targets(dev, phys_luns, rescan);
+       if (phys_luns->resp_flag != 2) {
+               rcode = -ENOMSG;
+               goto mem_free_all;
        }
 
-       kfree(phys_luns);
-err_out:
+       dev->safw_phys_luns = phys_luns;
+
+out:
        return rcode;
+mem_free_all:
+       kfree(phys_luns);
+       goto out;
+
 }
 
 static int aac_setup_safw_targets(struct aac_dev *dev, int rescan)
 {
-       return aac_get_safw_ciss_luns(dev, rescan);
+       int rcode = 0;
+
+       rcode = aac_get_safw_ciss_luns(dev, rescan);
+       if (unlikely(rcode < 0))
+               goto out;
+
+       aac_set_safw_attr_all_targets(dev, rescan);
+
+       aac_free_safw_ciss_luns(dev);
+out:
+       return rcode;
 }
 
 int aac_setup_safw_adapter(struct aac_dev *dev, int rescan)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 5690767150709178ba94e554ca382534d06ceba5..19af4d971be17b945eee32734eeaae1ad777d8f4 100644 (file)
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1671,6 +1671,7 @@ struct aac_dev
        struct msix_entry       msixentry[AAC_MAX_MSIX];
        struct aac_msix_ctx     aac_msix[AAC_MAX_MSIX]; /* context */
        struct aac_hba_map_info hba_map[AAC_MAX_BUSES][AAC_MAX_TARGETS];
+       struct aac_ciss_phys_luns_resp *safw_phys_luns;
        u8                      adapter_shutdown;
        u32                     handle_pci_error;
 };