ide: cleanup ide_fix_driveid()

Do all __le16_to_cpu() swapping in one loop.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 20 insertions, 87 deletions

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 2cbadffe922e..68d655e0fa47 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -400,97 +400,30 @@ const struct ide_tp_ops default_tp_ops = {
         .output_data            = ide_output_data,
 };
 
-void ide_fix_driveid (struct hd_driveid *id)
+void ide_fix_driveid(struct hd_driveid *driveid)
 {
 #ifndef __LITTLE_ENDIAN
 # ifdef __BIG_ENDIAN
+        u16 *id = (u16 *)driveid;
         int i;
-        u16 *stringcast;
-
-        id->config         = __le16_to_cpu(id->config);
-        id->cyls           = __le16_to_cpu(id->cyls);
-        id->reserved2      = __le16_to_cpu(id->reserved2);
-        id->heads          = __le16_to_cpu(id->heads);
-        id->track_bytes    = __le16_to_cpu(id->track_bytes);
-        id->sector_bytes   = __le16_to_cpu(id->sector_bytes);
-        id->sectors        = __le16_to_cpu(id->sectors);
-        id->vendor0        = __le16_to_cpu(id->vendor0);
-        id->vendor1        = __le16_to_cpu(id->vendor1);
-        id->vendor2        = __le16_to_cpu(id->vendor2);
-        stringcast = (u16 *)&id->serial_no[0];
-        for (i = 0; i < (20/2); i++)
-                stringcast[i] = __le16_to_cpu(stringcast[i]);
-        id->buf_type       = __le16_to_cpu(id->buf_type);
-        id->buf_size       = __le16_to_cpu(id->buf_size);
-        id->ecc_bytes      = __le16_to_cpu(id->ecc_bytes);
-        stringcast = (u16 *)&id->fw_rev[0];
-        for (i = 0; i < (8/2); i++)
-                stringcast[i] = __le16_to_cpu(stringcast[i]);
-        stringcast = (u16 *)&id->model[0];
-        for (i = 0; i < (40/2); i++)
-                stringcast[i] = __le16_to_cpu(stringcast[i]);
-        id->dword_io       = __le16_to_cpu(id->dword_io);
-        id->reserved50     = __le16_to_cpu(id->reserved50);
-        id->field_valid    = __le16_to_cpu(id->field_valid);
-        id->cur_cyls       = __le16_to_cpu(id->cur_cyls);
-        id->cur_heads      = __le16_to_cpu(id->cur_heads);
-        id->cur_sectors    = __le16_to_cpu(id->cur_sectors);
-        id->cur_capacity0  = __le16_to_cpu(id->cur_capacity0);
-        id->cur_capacity1  = __le16_to_cpu(id->cur_capacity1);
-        id->lba_capacity   = __le32_to_cpu(id->lba_capacity);
-        id->dma_1word      = __le16_to_cpu(id->dma_1word);
-        id->dma_mword      = __le16_to_cpu(id->dma_mword);
-        id->eide_pio_modes = __le16_to_cpu(id->eide_pio_modes);
-        id->eide_dma_min   = __le16_to_cpu(id->eide_dma_min);
-        id->eide_dma_time  = __le16_to_cpu(id->eide_dma_time);
-        id->eide_pio       = __le16_to_cpu(id->eide_pio);
-        id->eide_pio_iordy = __le16_to_cpu(id->eide_pio_iordy);
-        for (i = 0; i < 2; ++i)
-                id->words69_70[i] = __le16_to_cpu(id->words69_70[i]);
-        for (i = 0; i < 4; ++i)
-                id->words71_74[i] = __le16_to_cpu(id->words71_74[i]);
-        id->queue_depth    = __le16_to_cpu(id->queue_depth);
-        for (i = 0; i < 4; ++i)
-                id->words76_79[i] = __le16_to_cpu(id->words76_79[i]);
-        id->major_rev_num  = __le16_to_cpu(id->major_rev_num);
-        id->minor_rev_num  = __le16_to_cpu(id->minor_rev_num);
-        id->command_set_1  = __le16_to_cpu(id->command_set_1);
-        id->command_set_2  = __le16_to_cpu(id->command_set_2);
-        id->cfsse          = __le16_to_cpu(id->cfsse);
-        id->cfs_enable_1   = __le16_to_cpu(id->cfs_enable_1);
-        id->cfs_enable_2   = __le16_to_cpu(id->cfs_enable_2);
-        id->csf_default    = __le16_to_cpu(id->csf_default);
-        id->dma_ultra      = __le16_to_cpu(id->dma_ultra);
-        id->trseuc         = __le16_to_cpu(id->trseuc);
-        id->trsEuc         = __le16_to_cpu(id->trsEuc);
-        id->CurAPMvalues   = __le16_to_cpu(id->CurAPMvalues);
-        id->mprc           = __le16_to_cpu(id->mprc);
-        id->hw_config      = __le16_to_cpu(id->hw_config);
-        id->acoustic       = __le16_to_cpu(id->acoustic);
-        id->msrqs          = __le16_to_cpu(id->msrqs);
-        id->sxfert         = __le16_to_cpu(id->sxfert);
-        id->sal            = __le16_to_cpu(id->sal);
-        id->spg            = __le32_to_cpu(id->spg);
-        id->lba_capacity_2 = __le64_to_cpu(id->lba_capacity_2);
-        for (i = 0; i < 22; i++)
-                id->words104_125[i]   = __le16_to_cpu(id->words104_125[i]);
-        id->last_lun       = __le16_to_cpu(id->last_lun);
-        id->word127        = __le16_to_cpu(id->word127);
-        id->dlf            = __le16_to_cpu(id->dlf);
-        id->csfo           = __le16_to_cpu(id->csfo);
-        for (i = 0; i < 26; i++)
-                id->words130_155[i] = __le16_to_cpu(id->words130_155[i]);
-        id->word156        = __le16_to_cpu(id->word156);
-        for (i = 0; i < 3; i++)
-                id->words157_159[i] = __le16_to_cpu(id->words157_159[i]);
-        id->cfa_power      = __le16_to_cpu(id->cfa_power);
-        for (i = 0; i < 15; i++)
-                id->words161_175[i] = __le16_to_cpu(id->words161_175[i]);
-        for (i = 0; i < 30; i++)
-                id->words176_205[i] = __le16_to_cpu(id->words176_205[i]);
-        for (i = 0; i < 49; i++)
-                id->words206_254[i] = __le16_to_cpu(id->words206_254[i]);
-        id->integrity_word  = __le16_to_cpu(id->integrity_word);
+
+        for (i = 0; i < 256; i++) {
+                /*  these words are accessed as two 8-bit values */
+                if (i == 47 || i == 49 || i == 51 || i == 52 || i == 59)
+                        continue;
+                if (i == 60 || i == 61) /* ->lba_capacity is 32-bit */
+                        continue;
+                if (i == 98 || i == 99) /* ->spg is 32-bit */
+                        continue;
+                if (i > 99 && i < 104)  /* ->lba_capacity_2 is 64-bit */
+                        continue;
+
+                id[i] = __le16_to_cpu(id[i]);
+        }
+
+        driveid->lba_capacity   = __le32_to_cpu(driveid->lba_capacity);
+        driveid->spg            = __le32_to_cpu(driveid->spg);
+        driveid->lba_capacity_2 = __le64_to_cpu(driveid->lba_capacity_2);
 # else
 #  error "Please fix <asm/byteorder.h>"
 # endif