[PATCH] net: smc911x: avoid unused variable warnings

From: Arnd Bergmann
Date: Mon Mar 21 2016 - 04:41:28 EST

The change to use the generic DMA engine API in the smc911x
driver has led to a harmless warning about unused local variables:

smsc/smc911x.c: In function 'smc911x_probe':
smsc/smc911x.c:1796:20: error: unused variable 'param'
smsc/smc911x.c:1795:17: error: unused variable 'mask'
smsc/smc911x.c:1794:26: error: unused variable 'config'

This puts the variable declarations inside of the same #ifdef
that protects their use.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: 79d3b59a93ba ("net: smc911x: convert pxa dma to dmaengine")
drivers/net/ethernet/smsc/smc911x.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index 3f5711061432..a733868a43aa 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -1791,9 +1791,11 @@ static int smc911x_probe(struct net_device *dev)
unsigned int val, chip_id, revision;
const char *version_string;
unsigned long irq_flags;
+#ifdef SMC_USE_DMA
struct dma_slave_config config;
dma_cap_mask_t mask;
struct pxad_param param;

DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);