Commit 32788beb authored by John Garry's avatar John Garry Committed by Damien Le Moal

ata: pata_cs5535: Fix W=1 warnings

x86_64 allmodconfig build with W=1 gives these warnings:

drivers/ata/pata_cs5535.c: In function ‘cs5535_set_piomode’:
drivers/ata/pata_cs5535.c:93:11: error: variable ‘dummy’ set but not
used [-Werror=unused-but-set-variable]
  u32 reg, dummy;
           ^~~~~
drivers/ata/pata_cs5535.c: In function ‘cs5535_set_dmamode’:
drivers/ata/pata_cs5535.c:132:11: error: variable ‘dummy’ set but not
used [-Werror=unused-but-set-variable]
  u32 reg, dummy;
           ^~~~~
cc1: all warnings being treated as errors

Mark variables 'dummy' as "maybe unused" as they are only ever written
in rdmsr() calls.
Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
Reviewed-by: default avatarSergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: default avatarDamien Le Moal <damien.lemoal@opensource.wdc.com>
parent 540a92bf
......@@ -90,7 +90,7 @@ static void cs5535_set_piomode(struct ata_port *ap, struct ata_device *adev)
static const u16 pio_cmd_timings[5] = {
0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131
};
u32 reg, dummy;
u32 reg, __maybe_unused dummy;
struct ata_device *pair = ata_dev_pair(adev);
int mode = adev->pio_mode - XFER_PIO_0;
......@@ -129,7 +129,7 @@ static void cs5535_set_dmamode(struct ata_port *ap, struct ata_device *adev)
static const u32 mwdma_timings[3] = {
0x7F0FFFF3, 0x7F035352, 0x7F024241
};
u32 reg, dummy;
u32 reg, __maybe_unused dummy;
int mode = adev->dma_mode;
rdmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, dummy);
......
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