[PATCH 0/4] misc warning cleanup in arch/risc-v

Palmer Dabbelt palmer at dabbelt.com
Thu Aug 25 16:42:53 PDT 2022


On Fri, 19 Aug 2022 09:14:32 PDT (-0700), apatel at ventanamicro.com wrote:
> On Fri, Aug 19, 2022 at 4:32 AM Palmer Dabbelt <palmer at dabbelt.com> wrote:
>>
>> On Sun, 14 Aug 2022 07:12:34 PDT (-0700), mail at conchuod.ie wrote:
>> > From: Conor Dooley <conor.dooley at microchip.com>
>> >
>> > Hey all,
>> > Couple fixes here for most of what's left of the {sparse,} warnings in
>> > arch/riscv that are still in need of patches. Ben has sent patches
>> > for the VDSO issue already (although they seem to need rework).
>> >
>> > VDSO aside, With this patchset applied, we are left with:
>> > - cpuinfo_ops missing prototype: this likely needs to go into an
>> >   asm-generic header & I'll send a separate patch for that.
>> > - Complaints about an error in mm/init.c:
>> >   "error inarch/riscv/mm/init.c:819:2: error: "setup_vm() is <trunc>
>> >   I think this can be ignored.
>> > - 600+ -Woverride-init warnings for syscall table setup where
>> >   overriding seems to be the whole point of the macro.
>> > - Warnings about imported kvm core code.
>> > - Flexible array member warnings that look like common KVM code
>> >   patterns
>> > - An unexpected unlock in kvm_riscv_check_vcpu_requests that was added
>> >   intentionally:
>> >   https://lore.kernel.org/all/20220710151105.687193-1-apatel@ventanamicro.com/
>> >   Is it worth looking into whether that's a false positive or not?
>> >
>> > Thanks,
>> > Conor.
>> >
>> > Conor Dooley (4):
>> >   riscv: kvm: vcpu_timer: fix unused variable warnings
>> >   riscv: kvm: move extern sbi_ext declarations to a header
>> >   riscv: signal: fix missing prototype warning
>> >   riscv: traps: add missing prototype
>> >
>> >  arch/riscv/include/asm/kvm_vcpu_sbi.h | 12 ++++++++++++
>> >  arch/riscv/include/asm/signal.h       | 12 ++++++++++++
>> >  arch/riscv/include/asm/thread_info.h  |  2 ++
>> >  arch/riscv/kernel/signal.c            |  1 +
>> >  arch/riscv/kernel/traps.c             |  3 ++-
>> >  arch/riscv/kvm/vcpu_sbi.c             | 12 +-----------
>> >  arch/riscv/kvm/vcpu_timer.c           |  4 ----
>> >  7 files changed, 30 insertions(+), 16 deletions(-)
>> >  create mode 100644 arch/riscv/include/asm/signal.h
>>
>> These generally look good to me.  Anup handles the KVM bits so I'll let
>> him chime in there, but
>>
>> Reviewed-by: Palmer Dabbelt <palmer at rivosinc.com>
>> Acked-by: Palmer Dabbelt <palmer at rivosinc.com>
>>
>> on all of them.
>>
>> Happy to do some sort of shared tag thing, but it looks like these are
>> all independent enough that it'd be easier to just split them up.  I've
>> put the non-KVM bits over at palmer/riscv-variable_fixes_without_kvm, if
>> you guys are all OK splitting this up then I'll go take those onto
>> riscv/fixes.  I'll wait a bit for folks to get a chance to look, so it
>> won't be for tomorrow morning.
>
> Thanks Palmer. I have queued the KVM fixes (first two patches).

Sounds good.  The others are in riscv/fixes.

>
> Regards,
> Anup
>
>>
>> Thanks!
>>
>> --
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