From 228c05c2d73e072b78d0c661c2d8717d0310ef35 Mon Sep 17 00:00:00 2001 From: Tokunori Ikegami Date: Tue, 6 Aug 2019 04:03:21 +0900 Subject: mtd: cfi_cmdset_0002: Split do_write_oneword() op_done goto statement To reduce function size and to remove the goto statement, split the op_done goto statement part into do_write_oneword_done(). Also split the start part into do_write_oneword_start() to be symmetrical. Cc: Fabio Bettoni Co: Hauke Mehrtens Cc: Chris Packham Cc: Joakim Tjernlund Cc: linux-mtd@lists.infradead.org Signed-off-by: Tokunori Ikegami [vigneshr@ti.com: Reword commit message] Signed-off-by: Vignesh Raghavendra --- drivers/mtd/chips/cfi_cmdset_0002.c | 62 +++++++++++++++++++++++++------------ 1 file changed, 43 insertions(+), 19 deletions(-) (limited to 'drivers/mtd/chips') diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 63d69fab4b32..d7e7a1a8cbdf 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -1705,6 +1705,40 @@ static int __xipram do_write_oneword_once(struct map_info *map, return ret; } +static int __xipram do_write_oneword_start(struct map_info *map, + struct flchip *chip, + unsigned long adr, int mode) +{ + int ret = 0; + + mutex_lock(&chip->mutex); + + ret = get_chip(map, chip, adr, mode); + if (ret) { + mutex_unlock(&chip->mutex); + return ret; + } + + if (mode == FL_OTP_WRITE) + otp_enter(map, chip, adr, map_bankwidth(map)); + + return ret; +} + +static void __xipram do_write_oneword_done(struct map_info *map, + struct flchip *chip, + unsigned long adr, int mode) +{ + if (mode == FL_OTP_WRITE) + otp_exit(map, chip, adr, map_bankwidth(map)); + + chip->state = FL_READY; + DISABLE_VPP(map); + put_chip(map, chip, adr); + + mutex_unlock(&chip->mutex); +} + static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip, unsigned long adr, map_word datum, int mode) @@ -1716,19 +1750,14 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip, adr += chip->start; - mutex_lock(&chip->mutex); - ret = get_chip(map, chip, adr, mode); + pr_debug("MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n", __func__, adr, + datum.x[0]); + + ret = do_write_oneword_start(map, chip, adr, mode); if (ret) { - mutex_unlock(&chip->mutex); return ret; } - pr_debug("MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n", - __func__, adr, datum.x[0]); - - if (mode == FL_OTP_WRITE) - otp_enter(map, chip, adr, map_bankwidth(map)); - /* * Check for a NOP for the case when the datum to write is already * present - it saves time and works around buggy chips that corrupt @@ -1737,9 +1766,9 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip, */ oldd = map_read(map, adr); if (map_word_equal(map, oldd, datum)) { - pr_debug("MTD %s(): NOP\n", - __func__); - goto op_done; + pr_debug("MTD %s(): NOP\n", __func__); + do_write_oneword_done(map, chip, adr, mode); + return ret; } XIP_INVAL_CACHED_RANGE(map, adr, map_bankwidth(map)); @@ -1760,13 +1789,8 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip, } } xip_enable(map, chip, adr); - op_done: - if (mode == FL_OTP_WRITE) - otp_exit(map, chip, adr, map_bankwidth(map)); - chip->state = FL_READY; - DISABLE_VPP(map); - put_chip(map, chip, adr); - mutex_unlock(&chip->mutex); + + do_write_oneword_done(map, chip, adr, mode); return ret; } -- cgit v1.2.3