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| author | Richard Fitzgerald <[email protected]> | 2021-05-25 12:20:12 +0000 |
|---|---|---|
| committer | Petr Mladek <[email protected]> | 2021-05-27 13:38:17 +0000 |
| commit | d327ea15a305024ef0085252fa3657bbb1ce25f5 (patch) | |
| tree | f801624d48b5121671faa5850da28b92591c4f8c /lib/test_printf.c | |
| parent | lib: test_scanf: Remove pointless use of type_min() with unsigned types (diff) | |
| download | kernel-d327ea15a305024ef0085252fa3657bbb1ce25f5.tar.gz kernel-d327ea15a305024ef0085252fa3657bbb1ce25f5.zip | |
random32: Fix implicit truncation warning in prandom_seed_state()
sparse generates the following warning:
include/linux/prandom.h:114:45: sparse: sparse: cast truncates bits from
constant value
This is because the 64-bit seed value is manipulated and then placed in a
u32, causing an implicit cast and truncation. A forced cast to u32 doesn't
prevent this warning, which is reasonable because a typecast doesn't prove
that truncation was expected.
Logical-AND the value with 0xffffffff to make explicit that truncation to
32-bit is intended.
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Richard Fitzgerald <[email protected]>
Reviewed-by: Petr Mladek <[email protected]>
Signed-off-by: Petr Mladek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'lib/test_printf.c')
0 files changed, 0 insertions, 0 deletions
