scsi: megaraid: Fix set but unused variable (aa055885) · Commits · 戴 / test

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:

drivers/scsi/megaraid.c

+4 −5

Original line number	Diff line number	Diff line
		@@ -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.