[07/10] gdth: remove dead dma statistics code

Commit Message

Christoph Hellwig Dec. 12, 2018, 7:41 a.m. UTC

This code can't be built into the kernel without editing the source
file and is not generall useful.

Signed-off-by: Christoph Hellwig <[e-mail]>
---
 drivers/scsi/gdth.c      | 18 ------------------
 drivers/scsi/gdth_proc.c |  8 --------
 2 files changed, 26 deletions(-)

Patch

diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 1acd70440672..b33d47343cff 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -2126,12 +2126,6 @@  static int gdth_fill_cache_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp,
                 cmdp->u.cache64.sg_canz = sgcnt;
                 scsi_for_each_sg(scp, sl, sgcnt, i) {
                     cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
-#ifdef GDTH_DMA_STATISTICS
-                    if (cmdp->u.cache64.sg_lst[i].sg_ptr > (u64)0xffffffff)
-                        ha->dma64_cnt++;
-                    else
-                        ha->dma32_cnt++;
-#endif
                     cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
                 }
             } else {
@@ -2141,9 +2135,6 @@  static int gdth_fill_cache_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp,
                 cmdp->u.cache.sg_canz = sgcnt;
                 scsi_for_each_sg(scp, sl, sgcnt, i) {
                     cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
-#ifdef GDTH_DMA_STATISTICS
-                    ha->dma32_cnt++;
-#endif
                     cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
                 }
             }
@@ -2298,12 +2289,6 @@  static int gdth_fill_raw_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 b)
                 cmdp->u.raw64.sg_ranz = sgcnt;
                 scsi_for_each_sg(scp, sl, sgcnt, i) {
                     cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
-#ifdef GDTH_DMA_STATISTICS
-                    if (cmdp->u.raw64.sg_lst[i].sg_ptr > (u64)0xffffffff)
-                        ha->dma64_cnt++;
-                    else
-                        ha->dma32_cnt++;
-#endif
                     cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
                 }
             } else {
@@ -2313,9 +2298,6 @@  static int gdth_fill_raw_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 b)
                 cmdp->u.raw.sg_ranz = sgcnt;
                 scsi_for_each_sg(scp, sl, sgcnt, i) {
                     cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
-#ifdef GDTH_DMA_STATISTICS
-                    ha->dma32_cnt++;
-#endif
                     cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
                 }
             }
diff --git a/drivers/scsi/gdth_proc.c b/drivers/scsi/gdth_proc.c
index 8e77f8fd8641..fc36c49a5334 100644
--- a/drivers/scsi/gdth_proc.c
+++ b/drivers/scsi/gdth_proc.c
@@ -229,14 +229,6 @@  int gdth_show_info(struct seq_file *m, struct Scsi_Host *host)
                        " Serial No.:   \t0x%8X\tCache RAM size:\t%d KB\n",
                        ha->binfo.ser_no, ha->binfo.memsize / 1024);
 
-#ifdef GDTH_DMA_STATISTICS
-    /* controller statistics */
-    seq_puts(m, "\nController Statistics:\n");
-    seq_printf(m,
-                   " 32-bit DMA buffer:\t%lu\t64-bit DMA buffer:\t%lu\n",
-                   ha->dma32_cnt, ha->dma64_cnt);
-#endif
-
     if (ha->more_proc) {
         size_t size = max_t(size_t, GDTH_SCRATCH, sizeof(gdth_hget_str));