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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-21 19:36:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-21 19:36:59 +0100 |
| commit | dd7d99dc688d0fc448976f52f8517fbdeccdccda (patch) | |
| tree | 4ad59de5d584cf03e772ee153260c24ba0d717bd /kernel/bpf/tnum.c | |
| parent | 42bbdd99221bac206dde2b5e87098177fcd2a48e (diff) | |
| parent | def9d2780727cec3313ed3522d0123158d87224d (diff) | |
Merge 5.5-rc7 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/bpf/tnum.c')
| -rw-r--r-- | kernel/bpf/tnum.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/bpf/tnum.c b/kernel/bpf/tnum.c index ca52b9642943f..d4f335a9a8998 100644 --- a/kernel/bpf/tnum.c +++ b/kernel/bpf/tnum.c @@ -44,14 +44,19 @@ struct tnum tnum_rshift(struct tnum a, u8 shift) return TNUM(a.value >> shift, a.mask >> shift); } -struct tnum tnum_arshift(struct tnum a, u8 min_shift) +struct tnum tnum_arshift(struct tnum a, u8 min_shift, u8 insn_bitness) { /* if a.value is negative, arithmetic shifting by minimum shift * will have larger negative offset compared to more shifting. * If a.value is nonnegative, arithmetic shifting by minimum shift * will have larger positive offset compare to more shifting. */ - return TNUM((s64)a.value >> min_shift, (s64)a.mask >> min_shift); + if (insn_bitness == 32) + return TNUM((u32)(((s32)a.value) >> min_shift), + (u32)(((s32)a.mask) >> min_shift)); + else + return TNUM((s64)a.value >> min_shift, + (s64)a.mask >> min_shift); } struct tnum tnum_add(struct tnum a, struct tnum b) |