linux-kernel - [RFC 01/47] mtd: nand: export useful functions from core driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1395735604-26706-2-git-send-email-lee.jones@linaro.org>
Date:	Tue, 25 Mar 2014 08:19:18 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	lee.jones@...aro.org, kernel@...inux.com,
	computersforpeace@...il.com, linux-mtd@...ts.infradead.org,
	dwmw2@...radead.org, angus.clark@...com, pekon@...com
Subject: [RFC 01/47] mtd: nand: export useful functions from core driver

These functions are utilised by the STM BCH NAND Controller driver.

Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/mtd/nand/nand_base.c | 18 +++++++++++-------
 include/linux/mtd/nand.h     |  6 ++++++
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index bd39f7b..070505d 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -90,7 +90,7 @@ static struct nand_ecclayout nand_oob_128 = {
 		 .length = 78} }
 };
 
-static int nand_get_device(struct mtd_info *mtd, int new_state);
+int nand_get_device(struct mtd_info *mtd, int new_state);
 
 static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
 			     struct mtd_oob_ops *ops);
@@ -128,7 +128,7 @@ static int check_offs_len(struct mtd_info *mtd,
  *
  * Release chip lock and wake up anyone waiting on the device.
  */
-static void nand_release_device(struct mtd_info *mtd)
+void nand_release_device(struct mtd_info *mtd)
 {
 	struct nand_chip *chip = mtd->priv;
 
@@ -139,6 +139,7 @@ static void nand_release_device(struct mtd_info *mtd)
 	wake_up(&chip->controller->wq);
 	spin_unlock(&chip->controller->lock);
 }
+EXPORT_SYMBOL_GPL(nand_release_device);
 
 /**
  * nand_read_byte - [DEFAULT] read one byte from the chip
@@ -736,8 +737,7 @@ static void panic_nand_get_device(struct nand_chip *chip,
  *
  * Get the device and lock it for exclusive access
  */
-static int
-nand_get_device(struct mtd_info *mtd, int new_state)
+int nand_get_device(struct mtd_info *mtd, int new_state)
 {
 	struct nand_chip *chip = mtd->priv;
 	spinlock_t *lock = &chip->controller->lock;
@@ -769,6 +769,7 @@ retry:
 	remove_wait_queue(wq, &wait);
 	goto retry;
 }
+EXPORT_SYMBOL_GPL(nand_get_device);
 
 /**
  * panic_nand_wait - [GENERIC] wait until the command is done
@@ -2665,7 +2666,7 @@ erase_exit:
  *
  * Sync is actually a wait for chip ready function.
  */
-static void nand_sync(struct mtd_info *mtd)
+void nand_sync(struct mtd_info *mtd)
 {
 	pr_debug("%s: called\n", __func__);
 
@@ -2674,6 +2675,7 @@ static void nand_sync(struct mtd_info *mtd)
 	/* Release it and go back */
 	nand_release_device(mtd);
 }
+EXPORT_SYMBOL_GPL(nand_sync);
 
 /**
  * nand_block_isbad - [MTD Interface] Check if block at offset is bad
@@ -2757,16 +2759,17 @@ static int nand_onfi_get_features(struct mtd_info *mtd, struct nand_chip *chip,
  * nand_suspend - [MTD Interface] Suspend the NAND flash
  * @mtd: MTD device structure
  */
-static int nand_suspend(struct mtd_info *mtd)
+int nand_suspend(struct mtd_info *mtd)
 {
 	return nand_get_device(mtd, FL_PM_SUSPENDED);
 }
+EXPORT_SYMBOL(nand_suspend);
 
 /**
  * nand_resume - [MTD Interface] Resume the NAND flash
  * @mtd: MTD device structure
  */
-static void nand_resume(struct mtd_info *mtd)
+void nand_resume(struct mtd_info *mtd)
 {
 	struct nand_chip *chip = mtd->priv;
 
@@ -2776,6 +2779,7 @@ static void nand_resume(struct mtd_info *mtd)
 		pr_err("%s called for a chip which is not in suspended state\n",
 			__func__);
 }
+EXPORT_SYMBOL(nand_resume);
 
 /* Set default functions */
 static void nand_set_defaults(struct nand_chip *chip, int busw)
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 9e6c8f9..f7b6a53 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -698,6 +698,12 @@ extern int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
 			   int allowbbt);
 extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len,
 			size_t *retlen, uint8_t *buf);
+extern void nand_sync(struct mtd_info *mtd);
+extern int nand_suspend(struct mtd_info *mtd);
+extern void nand_resume(struct mtd_info *mtd);
+
+extern int nand_get_device(struct mtd_info *mtd, int new_state);
+extern void nand_release_device(struct mtd_info *mtd);
 
 /**
  * struct platform_nand_chip - chip level device structure
-- 
1.8.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/