cciss: switch to ->show_info()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index da33111..ecd845c 100644 (file)
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -54,13 +54,11 @@ static CommandList_struct *cmd_special_alloc(ctlr_info_t *h);
 static void cmd_free(ctlr_info_t *h, CommandList_struct *c);
 static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c);
 
-static int cciss_scsi_proc_info(
-               struct Scsi_Host *sh,
+static int cciss_scsi_write_info(struct Scsi_Host *sh,
                char *buffer, /* data buffer */
-               char **start,      /* where data in buffer starts */
-               off_t offset,      /* offset from start of imaginary file */
-               int length,        /* length of data in buffer */
-               int func);         /* 0 == read, 1 == write */
+               int length);       /* length of data in buffer */
+static int cciss_scsi_show_info(struct seq_file *m,
+                               struct Scsi_Host *sh);
 
 static int cciss_scsi_queue_command (struct Scsi_Host *h,
                                     struct scsi_cmnd *cmd);
@@ -82,7 +80,8 @@ static struct scsi_host_template cciss_driver_template = {
        .module                 = THIS_MODULE,
        .name                   = "cciss",
        .proc_name              = "cciss",
-       .proc_info              = cciss_scsi_proc_info,
+       .write_info             = cciss_scsi_write_info,
+       .show_info              = cciss_scsi_show_info,
        .queuecommand           = cciss_scsi_queue_command,
        .this_id                = 7,
        .cmd_per_lun            = 1,
@@ -1302,59 +1301,54 @@ cciss_scsi_user_command(ctlr_info_t *h, int hostno, char *buffer, int length)
        return length;
 }
 
-
 static int
-cciss_scsi_proc_info(struct Scsi_Host *sh,
+cciss_scsi_write_info(struct Scsi_Host *sh,
                char *buffer, /* data buffer */
-               char **start,      /* where data in buffer starts */
-               off_t offset,      /* offset from start of imaginary file */
-               int length,        /* length of data in buffer */
-               int func)          /* 0 == read, 1 == write */
+               int length)        /* length of data in buffer */
 {
+       ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0];
+       if (h == NULL)  /* This really shouldn't ever happen. */
+               return -EINVAL;
 
-       int buflen, datalen;
-       ctlr_info_t *h;
+       return cciss_scsi_user_command(h, sh->host_no,
+                       buffer, length);        
+} 
+
+static int
+cciss_scsi_show_info(struct seq_file *m, struct Scsi_Host *sh)
+{
+
+       ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0];
        int i;
 
-       h = (ctlr_info_t *) sh->hostdata[0];
        if (h == NULL)  /* This really shouldn't ever happen. */
                return -EINVAL;
 
-       if (func == 0) {        /* User is reading from /proc/scsi/ciss*?/?*  */
-               buflen = sprintf(buffer, "cciss%d: SCSI host: %d\n",
-                               h->ctlr, sh->host_no);
-
-               /* this information is needed by apps to know which cciss
-                  device corresponds to which scsi host number without
-                  having to open a scsi target device node.  The device
-                  information is not a duplicate of /proc/scsi/scsi because
-                  the two may be out of sync due to scsi hotplug, rather
-                  this info is for an app to be able to use to know how to
-                  get them back in sync. */
-
-               for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) {
-                       struct cciss_scsi_dev_t *sd =
-                               &ccissscsi[h->ctlr].dev[i];
-                       buflen += sprintf(&buffer[buflen], "c%db%dt%dl%d %02d "
-                               "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
-                               sh->host_no, sd->bus, sd->target, sd->lun,
-                               sd->devtype,
-                               sd->scsi3addr[0], sd->scsi3addr[1],
-                               sd->scsi3addr[2], sd->scsi3addr[3],
-                               sd->scsi3addr[4], sd->scsi3addr[5],
-                               sd->scsi3addr[6], sd->scsi3addr[7]);
-               }
-               datalen = buflen - offset;
-               if (datalen < 0) {      /* they're reading past EOF. */
-                       datalen = 0;
-                       *start = buffer+buflen; 
-               } else
-                       *start = buffer + offset;
-               return(datalen);
-       } else  /* User is writing to /proc/scsi/cciss*?/?*  ... */
-               return cciss_scsi_user_command(h, sh->host_no,
-                       buffer, length);        
-} 
+       seq_printf(m, "cciss%d: SCSI host: %d\n",
+                       h->ctlr, sh->host_no);
+
+       /* this information is needed by apps to know which cciss
+          device corresponds to which scsi host number without
+          having to open a scsi target device node.  The device
+          information is not a duplicate of /proc/scsi/scsi because
+          the two may be out of sync due to scsi hotplug, rather
+          this info is for an app to be able to use to know how to
+          get them back in sync. */
+
+       for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) {
+               struct cciss_scsi_dev_t *sd =
+                       &ccissscsi[h->ctlr].dev[i];
+               seq_printf(m, "c%db%dt%dl%d %02d "
+                       "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+                       sh->host_no, sd->bus, sd->target, sd->lun,
+                       sd->devtype,
+                       sd->scsi3addr[0], sd->scsi3addr[1],
+                       sd->scsi3addr[2], sd->scsi3addr[3],
+                       sd->scsi3addr[4], sd->scsi3addr[5],
+                       sd->scsi3addr[6], sd->scsi3addr[7]);
+       }
+       return 0;
+}
 
 /* cciss_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci 
    dma mapping  and fills in the scatter gather entries of the