mtd: lpddr: Mark functions as static and remove unused function

This patch marks the functions do_write_buffer() and do_erase_oneblock()
as static because because they are not used outside this file. It also
removes the unused function word_program() in lpddr/lpddr_cmds.c.

Thus, it also removes the following warnings in lpddr/lpddr_cmds.c:
drivers/mtd/lpddr/lpddr_cmds.c:391:5: warning: no previous prototype for ‘do_write_buffer’ [-Wmissing-prototypes]
drivers/mtd/lpddr/lpddr_cmds.c:472:5: warning: no previous prototype for ‘do_erase_oneblock’ [-Wmissing-prototypes]
drivers/mtd/lpddr/lpddr_cmds.c:751:5: warning: no previous prototype for ‘word_program’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index 2ef19aa..d38b646 100644 (file)
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -388,7 +388,7 @@ static void put_chip(struct map_info *map, struct flchip *chip)
        wake_up(&chip->wq);
 }
 
-int do_write_buffer(struct map_info *map, struct flchip *chip,
+static int do_write_buffer(struct map_info *map, struct flchip *chip,
                        unsigned long adr, const struct kvec **pvec,
                        unsigned long *pvec_seek, int len)
 {
@@ -469,7 +469,7 @@ int do_write_buffer(struct map_info *map, struct flchip *chip,
        return ret;
 }
 
-int do_erase_oneblock(struct mtd_info *mtd, loff_t adr)
+static int do_erase_oneblock(struct mtd_info *mtd, loff_t adr)
 {
        struct map_info *map = mtd->priv;
        struct lpddr_private *lpddr = map->fldrv_priv;
@@ -748,34 +748,6 @@ static int lpddr_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
        return do_xxlock(mtd, ofs, len, DO_XXLOCK_UNLOCK);
 }
 
-int word_program(struct map_info *map, loff_t adr, uint32_t curval)
-{
-    int ret;
-       struct lpddr_private *lpddr = map->fldrv_priv;
-       int chipnum = adr >> lpddr->chipshift;
-       struct flchip *chip = &lpddr->chips[chipnum];
-
-       mutex_lock(&chip->mutex);
-       ret = get_chip(map, chip, FL_WRITING);
-       if (ret) {
-               mutex_unlock(&chip->mutex);
-               return ret;
-       }
-
-       send_pfow_command(map, LPDDR_WORD_PROGRAM, adr, 0x00, (map_word *)&curval);
-
-       ret = wait_for_ready(map, chip, (1<<lpddr->qinfo->SingleWordProgTime));
-       if (ret)        {
-               printk(KERN_WARNING"%s word_program error at: %llx; val: %x\n",
-                       map->name, adr, curval);
-               goto out;
-       }
-
-out:   put_chip(map, chip);
-       mutex_unlock(&chip->mutex);
-       return ret;
-}
-
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Alexey Korolev <akorolev@infradead.org>");
 MODULE_DESCRIPTION("MTD driver for LPDDR flash chips");