scsi: wd7000: print sector number as 64-bit
authorArnd Bergmann <arnd@arndb.de>
Tue, 21 Jun 2016 09:02:39 +0000 (11:02 +0200)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 13 Jul 2016 03:16:31 +0000 (23:16 -0400)
Enabling format checking in dprintk() shows that wd7000_biosparam uses
an incorrect format string for sector_t:

drivers/scsi/wd7000.c: In function 'wd7000_biosparam':
drivers/scsi/wd7000.c:1594:21: error: format '%d' expects argument of type 'int', but argument 3 has type 'sector_t {aka long long unsigned int}' [-Werror=format=]

As sector_t can be 32-bit wide, this adds a cast to 'u64' and prints
that with the correct format. The change to use no_printk() generally
helps with finding this kind of hidden format string bug, and I found
that when building with "-Wextra", which warned about an empty else
clause in

       } else
              dprintk("ok!\n");

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/wd7000.c

index 0c0f17b..409f959 100644 (file)
 #ifdef WD7000_DEBUG
 #define dprintk printk
 #else
-#define dprintk(format,args...)
+#define dprintk        no_printk
 #endif
 
 /*
@@ -1591,8 +1591,8 @@ static int wd7000_biosparam(struct scsi_device *sdev,
 {
        char b[BDEVNAME_SIZE];
 
-       dprintk("wd7000_biosparam: dev=%s, size=%d, ",
-               bdevname(bdev, b), capacity);
+       dprintk("wd7000_biosparam: dev=%s, size=%llu, ",
+               bdevname(bdev, b), (u64)capacity);
        (void)b;        /* unused var warning? */
 
        /*