mtd: dc21285: use raw spinlock functions for nw_gpio_lock

Linux-MTD Mailing List linux-mtd at lists.infradead.org
Tue Jun 23 10:59:07 PDT 2015


Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=e5babdf928e5d0c432a8d4b99f20421ce14d1ab6
Commit:     e5babdf928e5d0c432a8d4b99f20421ce14d1ab6
Parent:     bde90062a38160fdce0d51a4340bb93c1a8f1114
Author:     Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
AuthorDate: Thu May 28 10:22:10 2015 +0200
Committer:  Brian Norris <computersforpeace at gmail.com>
CommitDate: Thu May 28 12:01:29 2015 -0700

    mtd: dc21285: use raw spinlock functions for nw_gpio_lock
    
    Since commit bd31b85960a7 (which is in 3.2-rc1) nw_gpio_lock is a raw spinlock
    that needs usage of the corresponding raw functions.
    
    This fixes:
    
      drivers/mtd/maps/dc21285.c: In function 'nw_en_write':
      drivers/mtd/maps/dc21285.c:41:340: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type
        spin_lock_irqsave(&nw_gpio_lock, flags);
    
      In file included from include/linux/seqlock.h:35:0,
                       from include/linux/time.h:5,
                       from include/linux/stat.h:18,
                       from include/linux/module.h:10,
                       from drivers/mtd/maps/dc21285.c:8:
      include/linux/spinlock.h:299:102: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *'
       static inline raw_spinlock_t *spinlock_check(spinlock_t *lock)
                                                                                                            ^
      drivers/mtd/maps/dc21285.c:43:25: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type
        spin_unlock_irqrestore(&nw_gpio_lock, flags);
                               ^
      In file included from include/linux/seqlock.h:35:0,
                       from include/linux/time.h:5,
                       from include/linux/stat.h:18,
                       from include/linux/module.h:10,
                       from drivers/mtd/maps/dc21285.c:8:
      include/linux/spinlock.h:370:91: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *'
       static inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
    
    Fixes: bd31b85960a7 ("locking, ARM: Annotate low level hw locks as raw")
    Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
    Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---
 drivers/mtd/maps/dc21285.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/maps/dc21285.c b/drivers/mtd/maps/dc21285.c
index f8a7dd1..70a3db3 100644
--- a/drivers/mtd/maps/dc21285.c
+++ b/drivers/mtd/maps/dc21285.c
@@ -38,9 +38,9 @@ static void nw_en_write(void)
 	 * we want to write a bit pattern XXX1 to Xilinx to enable
 	 * the write gate, which will be open for about the next 2ms.
 	 */
-	spin_lock_irqsave(&nw_gpio_lock, flags);
+	raw_spin_lock_irqsave(&nw_gpio_lock, flags);
 	nw_cpld_modify(CPLD_FLASH_WR_ENABLE, CPLD_FLASH_WR_ENABLE);
-	spin_unlock_irqrestore(&nw_gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
 
 	/*
 	 * let the ISA bus to catch on...



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