[SCSI] zfcp: simplify zfcp_dbf_timestamp()

Change zfcp_dbf_timestamp() so that it just calculates timespec from
timestamp. First step to be able to rip this code out of zfcp.
Besides, this change makes it easier to rip out old-style debug view
functions.

Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 16 insertions, 14 deletions

diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index aecdc7f2dbc6..edd93533db40 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -49,23 +49,17 @@ static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len,
         }
 }
 
-static int
-zfcp_dbf_stck(char *out_buf, const char *label, unsigned long long stck)
+/* FIXME: this duplicate this code in s390 debug feature */
+static void zfcp_dbf_timestamp(unsigned long long stck, struct timespec *time)
 {
         unsigned long long sec;
-        struct timespec dbftime;
-        int len = 0;
 
         stck -= 0x8126d60e46000000LL - (0x3c26700LL * 1000000 * 4096);
         sec = stck >> 12;
         do_div(sec, 1000000);
-        dbftime.tv_sec = sec;
+        time->tv_sec = sec;
         stck -= (sec * 1000000) << 12;
-        dbftime.tv_nsec = ((stck * 1000) >> 12);
-        len += sprintf(out_buf + len, "%-24s%011lu:%06lu\n",
-                       label, dbftime.tv_sec, dbftime.tv_nsec);
-
-        return len;
+        time->tv_nsec = ((stck * 1000) >> 12);
 }
 
 static int zfcp_dbf_tag(char *out_buf, const char *label, const char *tag)
@@ -146,10 +140,12 @@ zfcp_dbf_view_header(debug_info_t * id, struct debug_view *view, int area,
 {
         struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)DEBUG_DATA(entry);
         int len = 0;
+        struct timespec t;
 
         if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) {
-                len += zfcp_dbf_stck(out_buf + len, "timestamp",
-                                     entry->id.stck);
+                zfcp_dbf_timestamp(entry->id.stck, &t);
+                len += zfcp_dbf_view(out_buf + len, "timestamp", "%011lu:%06lu",
+                                     t.tv_sec, t.tv_nsec);
                 len += zfcp_dbf_view(out_buf + len, "cpu", "%02i",
                                      entry->id.fields.cpuid);
         } else {
@@ -363,6 +359,7 @@ zfcp_hba_dbf_view_response(char *out_buf,
                            struct zfcp_hba_dbf_record_response *rec)
 {
         int len = 0;
+        struct timespec t;
 
         len += zfcp_dbf_view(out_buf + len, "fsf_command", "0x%08x",
                              rec->fsf_command);
@@ -370,7 +367,9 @@ zfcp_hba_dbf_view_response(char *out_buf,
                              rec->fsf_reqid);
         len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
                              rec->fsf_seqno);
-        len += zfcp_dbf_stck(out_buf + len, "fsf_issued", rec->fsf_issued);
+        zfcp_dbf_timestamp(rec->fsf_issued, &t);
+        len += zfcp_dbf_view(out_buf + len, "fsf_issued", "%011lu:%06lu",
+                             t.tv_sec, t.tv_nsec);
         len += zfcp_dbf_view(out_buf + len, "fsf_prot_status", "0x%08x",
                              rec->fsf_prot_status);
         len += zfcp_dbf_view(out_buf + len, "fsf_status", "0x%08x",
@@ -1222,6 +1221,7 @@ zfcp_scsi_dbf_view_format(debug_info_t * id, struct debug_view *view,
         struct zfcp_scsi_dbf_record *rec =
             (struct zfcp_scsi_dbf_record *)in_buf;
         int len = 0;
+        struct timespec t;
 
         if (strncmp(rec->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
                 return 0;
@@ -1253,7 +1253,9 @@ zfcp_scsi_dbf_view_format(debug_info_t * id, struct debug_view *view,
                              rec->fsf_reqid);
         len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
                              rec->fsf_seqno);
-        len += zfcp_dbf_stck(out_buf + len, "fsf_issued", rec->fsf_issued);
+        zfcp_dbf_timestamp(rec->fsf_issued, &t);
+        len += zfcp_dbf_view(out_buf + len, "fsf_issued", "%011lu:%06lu",
+                             t.tv_sec, t.tv_nsec);
         if (strncmp(rec->tag, "rslt", ZFCP_DBF_TAG_SIZE) == 0) {
                 len +=
                     zfcp_dbf_view(out_buf + len, "fcp_rsp_validity", "0x%02x",