// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2012 Linutronix GmbH
* Copyright (c) 2014 sigma star gmbh
* Author: Richard Weinberger <richard@nod.at>
*/
#include <linux/crc32.h>
#include <linux/bitmap.h>
#include "ubi.h"
/**
* init_seen - allocate memory for used for debugging.
* @ubi: UBI device description object
*/
static inline unsigned long *init_seen(struct ubi_device *ubi)
{
unsigned long *ret;
if (!ubi_dbg_chk_fastmap(ubi))
return NULL;
ret = kcalloc(BITS_TO_LONGS(ubi->peb_count), sizeof(unsigned long),
GFP_KERNEL);
if (!ret)
return ERR_PTR(-ENOMEM);
return ret;
}
/**
* free_seen - free the seen logic integer array.
* @seen: integer array of @ubi->peb_count size
*/
static inline void free_seen(unsigned long *seen)
{
kfree(seen);
}
/**
* set_seen - mark a PEB as seen.
* @ubi: UBI device description object
* @pnum: The PEB to be makred as seen
* @seen: integer array of @ubi->peb_count size
*/
static inline void set_seen(struct ubi_device *ubi, int pnum, unsigned long *seen)
{
if (!ubi_dbg_chk_fastmap(ubi) || !seen)
return;
set_bit(pnum, seen);
}
/**
* self_check_seen - check whether all PEB have been seen by fas
| 