585 static int sst26_lock_ctl(struct spi_flash *flash, u32 ofs, size_t len, enum lock_ctl ctl)  in sst26_lock_ctl()  argument
593 	if ((ofs & (SZ_64K - 1)) || (len & (SZ_64K - 1)))  in sst26_lock_ctl()
596 	if (ofs + len > flash->size)  in sst26_lock_ctl()
614 	rptr_64k = min_t(u32, ofs + len , flash->size - SST26_BOUND_REG_SIZE);  in sst26_lock_ctl()
615 	lptr_64k = max_t(u32, ofs, SST26_BOUND_REG_SIZE);  in sst26_lock_ctl()
617 	upper_64k = ((ofs + len) > (flash->size - SST26_BOUND_REG_SIZE));  in sst26_lock_ctl()
618 	lower_64k = (ofs < SST26_BOUND_REG_SIZE);  in sst26_lock_ctl()
683 static int sst26_unlock(struct spi_flash *flash, u32 ofs, size_t len)  in sst26_unlock()  argument
685 	return sst26_lock_ctl(flash, ofs, len, SST26_CTL_UNLOCK);  in sst26_unlock()
688 static int sst26_lock(struct spi_flash *flash, u32 ofs, size_t len)  in sst26_lock()  argument
690 	return sst26_lock_ctl(flash, ofs, len, SST26_CTL_LOCK);  in sst26_lock()
697 static int sst26_is_locked(struct spi_flash *flash, u32 ofs, size_t len)  in sst26_is_locked()  argument
705 	ofs -= ofs & (SZ_64K - 1);  in sst26_is_locked()
708 	return sst26_lock_ctl(flash, ofs, len, SST26_CTL_CHECK);  in sst26_is_locked()
838 static void stm_get_locked_range(struct spi_flash *flash, u8 sr, loff_t *ofs,  in stm_get_locked_range()  argument
847 		*ofs = 0;  in stm_get_locked_range()
852 		*ofs = flash->size - *len;  in stm_get_locked_range()
859 static int stm_is_locked_sr(struct spi_flash *flash, loff_t ofs, u64 len,  in stm_is_locked_sr()  argument
867 	return (ofs + len <= lock_offs + lock_len) && (ofs >= lock_offs);  in stm_is_locked_sr()
877 int stm_is_locked(struct spi_flash *flash, u32 ofs, size_t len)  in stm_is_locked()  argument
886 	return stm_is_locked_sr(flash, ofs, len, sr);  in stm_is_locked()
912 int stm_lock(struct spi_flash *flash, u32 ofs, size_t len)  in stm_lock()  argument
924 	if (ofs + len != flash->size) {  in stm_lock()
926 		if (!stm_is_locked_sr(flash, ofs + len, flash->size - ofs - len,  in stm_lock()
929 		len = flash->size - ofs;  in stm_lock()
966 int stm_unlock(struct spi_flash *flash, u32 ofs, size_t len)  in stm_unlock()  argument
978 	if (stm_is_locked_sr(flash, ofs - flash->erase_size, flash->erase_size,  in stm_unlock()
990 	pow = ilog2(flash->size) - order_base_2(flash->size - (ofs + len));  in stm_unlock()
991 	if (ofs + len == flash->size) {  in stm_unlock()