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author | Arnd Bergmann <arnd@arndb.de> | 2019-07-12 11:13:30 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-06 10:21:54 +0200 |
commit | 2013d6ec0bc06868da86e338d01124e5caa3b7a1 (patch) | |
tree | 683815cb23982df9c6f9ddaa13a5498bc058323d /drivers | |
parent | 97ab07e11fbf55c86c3758e07ab295028bf17f94 (diff) | |
download | linux-stable-2013d6ec0bc06868da86e338d01124e5caa3b7a1.tar.gz linux-stable-2013d6ec0bc06868da86e338d01124e5caa3b7a1.tar.bz2 linux-stable-2013d6ec0bc06868da86e338d01124e5caa3b7a1.zip |
dmaengine: ste_dma40: fix unneeded variable warning
[ Upstream commit 5d6fb560729a5d5554e23db8d00eb57cd0021083 ]
clang-9 points out that there are two variables that depending on the
configuration may only be used in an ARRAY_SIZE() expression but not
referenced:
drivers/dma/ste_dma40.c:145:12: error: variable 'd40_backup_regs' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration]
static u32 d40_backup_regs[] = {
^
drivers/dma/ste_dma40.c:214:12: error: variable 'd40_backup_regs_chan' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration]
static u32 d40_backup_regs_chan[] = {
Mark these __maybe_unused to shut up the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190712091357.744515-1-arnd@arndb.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/dma/ste_dma40.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index f4edfc56f34e..3d55405c49ca 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -142,7 +142,7 @@ enum d40_events { * when the DMA hw is powered off. * TODO: Add save/restore of D40_DREG_GCC on dma40 v3 or later, if that works. */ -static u32 d40_backup_regs[] = { +static __maybe_unused u32 d40_backup_regs[] = { D40_DREG_LCPA, D40_DREG_LCLA, D40_DREG_PRMSE, @@ -211,7 +211,7 @@ static u32 d40_backup_regs_v4b[] = { #define BACKUP_REGS_SZ_V4B ARRAY_SIZE(d40_backup_regs_v4b) -static u32 d40_backup_regs_chan[] = { +static __maybe_unused u32 d40_backup_regs_chan[] = { D40_CHAN_REG_SSCFG, D40_CHAN_REG_SSELT, D40_CHAN_REG_SSPTR, |