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scsi: megaraid: Fix set but unused variable
author
Damien Le Moal
<damien.lemoal@wdc.com>
Mon, 6 Jul 2020 12:33:51 +0000
(21:33 +0900)
committer
Martin K. Petersen
<martin.petersen@oracle.com>
Wed, 8 Jul 2020 05:02:59 +0000
(
01:02
-0400)
In megadev_ioctl(), if MEGA_HAVE_STATS is not defined, the variables
num_ldrv and ustats are unused. Conditionally define them to avoid compiler
warnings.
Link:
https://lore.kernel.org/r/20200706123351.451959-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/megaraid.c
patch
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diff --git
a/drivers/scsi/megaraid.c
b/drivers/scsi/megaraid.c
index
96ecf59
..
acd7c6e
100644
(file)
--- a/
drivers/scsi/megaraid.c
+++ b/
drivers/scsi/megaraid.c
@@
-2975,14
+2975,13
@@
megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
void *data = NULL; /* data to be transferred */
dma_addr_t data_dma_hndl; /* dma handle for data xfer area */
megacmd_t mc;
- megastat_t __user *ustats;
- int num_ldrv;
+#if MEGA_HAVE_STATS
+ megastat_t __user *ustats = NULL;
+ int num_ldrv = 0;
+#endif
u32 uxferaddr = 0;
struct pci_dev *pdev;
- ustats = NULL; /* avoid compilation warnings */
- num_ldrv = 0;
-
/*
* Make sure only USCSICMD are issued through this interface.
* MIMD application would still fire different command.