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author | Jonathan Cameron <jic23@kernel.org> | 2015-12-02 18:24:45 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-02 22:06:11 (GMT) |
commit | f89c2b39ce676cb08b6ed8848cde76dcb21cc672 (patch) | |
tree | 25ed839ce337c0c10a8ce002a9617dd00deefd1c /drivers/net/ethernet/cavium/thunder/nicvf_main.c | |
parent | f3cf3fb7ec854c2b2429e5bb23186746e6511dae (diff) | |
download | linux-f89c2b39ce676cb08b6ed8848cde76dcb21cc672.tar.xz |
staging:iio:mxs-lradc Fix large integer implicitly truncated to unsigned warning
The change to using BIT(20) for one of the bit shifts resulted
in a constant becoming unsigned. When combined with the existing
signed constants in a couple of places, this caused possible trouble,
hence the warnings:
drivers/staging/iio/adc/mxs-lradc.c: In function ‘mxs_lradc_complete_touch_event’:
drivers/staging/iio/adc/mxs-lradc.c:325:5: warning: large integer implicitly truncated to unsigned type [-Woverflow]
(((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
^
drivers/staging/iio/adc/mxs-lradc.c:734:7: note: in expansion of macro ‘LRADC_DELAY_TRIGGER’
LRADC_DELAY_TRIGGER(1 << TOUCHSCREEN_VCHANNEL1) |
^
LD [M] drivers/staging/iio/accel/adis16201.o
drivers/staging/iio/adc/mxs-lradc.c: In function ‘mxs_lradc_buffer_preenable’:
drivers/staging/iio/adc/mxs-lradc.c:322:42: warning: large integer implicitly truncated to unsigned type [-Woverflow]
#define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
^
drivers/staging/iio/adc/mxs-lradc.c:1308:29: note: in expansion of macro ‘LRADC_DELAY_TRIGGER_LRADCS_MASK’
mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
^
drivers/staging/iio/adc/mxs-lradc.c: In function ‘mxs_lradc_buffer_postdisable’:
drivers/staging/iio/adc/mxs-lradc.c:322:42: warning: large integer implicitly truncated to unsigned type [-Woverflow]
#define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
^
drivers/staging/iio/adc/mxs-lradc.c:1327:29: note: in expansion of macro ‘LRADC_DELAY_TRIGGER_LRADCS_MASK’
mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
The simplest fix is to force LRADC_DELAY_TRIGGER_LRADCS_MASK to be
a shift of an unsigned 0xff rather than a signed one.
This is ugly considering it is the only constant in the driver which
is so forced, but it does deal with the issue.
Fixes: e0c961bdaf27 (iio: adc: mxs-lradc: Prefer using the BIT macro)
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/nicvf_main.c')
0 files changed, 0 insertions, 0 deletions