From: Arnd Bergmann <arnd@arndb.de>
To: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>,
linux-scsi@vger.kernel.org
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] scsi: wd7000: print sector number as 64-bit
Date: Wed, 15 Jun 2016 22:54:49 +0200 [thread overview]
Message-ID: <4878482.cSGU6mK9NX@wuerfel> (raw)
In-Reply-To: <20160615204231.3784044-1-arnd@arndb.de>
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>
---
Not Cc'ing Miroslav Zagorac <zaga@fly.cc.fer.hr>, that address bounces
with "Requested action not taken: mailbox unavailable invalid DNS MX or A/AAAA resource record"
diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c
index 0c0f17b9a3eb..39a3b5333bd6 100644
--- a/drivers/scsi/wd7000.c
+++ b/drivers/scsi/wd7000.c
@@ -192,7 +192,7 @@
#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=%lld, ",
+ bdevname(bdev, b), (s64)capacity);
(void)b; /* unused var warning? */
/*
next prev parent reply other threads:[~2016-06-15 20:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-15 20:42 [PATCH 1/2] scsi: lpfc: avoid harmless comparison warning Arnd Bergmann
2016-06-15 20:54 ` Arnd Bergmann [this message]
2016-06-16 17:36 ` [PATCH 2/2] scsi: wd7000: print sector number as 64-bit kbuild test robot
2016-06-17 11:45 ` Arnd Bergmann
2016-06-21 1:12 ` Martin K. Petersen
2016-06-21 11:41 ` Arnd Bergmann
2016-06-16 7:39 ` [PATCH 1/2] scsi: lpfc: avoid harmless comparison warning Johannes Thumshirn
2016-07-14 3:15 ` Martin K. Petersen
2016-07-15 19:16 ` James Smart
2016-07-20 23:54 ` Martin K. Petersen
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