On 25/06/2018 19:35, Matthias Kaehlcke wrote:
> commit e2a5dca753d1cdc3212519023ed8a13e13f5495b
> Author: Borislav Petkov
> Date: Thu Nov 23 10:19:51 2017 +0100
>
> x86/umip: Fix insn_get_code_seg_params()'s return value
So this is the closest thing to a bug (it could have been a real bug
On Mon, Jun 25, 2018 at 1:50 PM Joe Perches wrote:
>
> On Mon, 2018-06-25 at 10:35 -0700, Matthias Kaehlcke wrote:
> > Some other instances of the warning that have been addressed are:
> > commit 644d87dccdc69cf79834a72ed0c889580d6af32a
> > commit e2a5dca753d1cdc3212519023ed8a13e13f5495b
> > commi
On Mon, 2018-06-25 at 10:35 -0700, Matthias Kaehlcke wrote:
> Some other instances of the warning that have been addressed are:
> commit 644d87dccdc69cf79834a72ed0c889580d6af32a
> commit e2a5dca753d1cdc3212519023ed8a13e13f5495b
> commit dae1a432ab1fe79ae53129ededeaece35a2dc14d
> commit d1600401faad
Hi Paolo,
On Mon, Jun 25, 2018 at 06:05:01PM +0200, Paolo Bonzini wrote:
> On 19/06/2018 21:25, Matthias Kaehlcke wrote:
> > update_permission_bitmask() negates u8 bitmask values and assigns them
> > to variables of type u8. Since the MSB is set in the bitmask values the
> > compiler expands the n
On Mon, 2018-06-25 at 13:12 -0400, Nick Desaulniers wrote:
> On Mon, Jun 25, 2018 at 1:05 PM Joe Perches wrote:
> > On Mon, 2018-06-25 at 12:47 -0400, Nick Desaulniers wrote:
[]
> > > Here's an actual bug this warning caught applied to drivers/input/:
> > >
> > > dae1a432ab1f ("Input: mousedev -
On Mon, Jun 25, 2018 at 1:05 PM Joe Perches wrote:
>
> On Mon, 2018-06-25 at 12:47 -0400, Nick Desaulniers wrote:
> > On Mon, Jun 25, 2018 at 12:05 PM Paolo Bonzini wrote:
> > >
> > > On 19/06/2018 21:25, Matthias Kaehlcke wrote:
> > > > update_permission_bitmask() negates u8 bitmask values and a
On Mon, 2018-06-25 at 12:47 -0400, Nick Desaulniers wrote:
> On Mon, Jun 25, 2018 at 12:05 PM Paolo Bonzini wrote:
> >
> > On 19/06/2018 21:25, Matthias Kaehlcke wrote:
> > > update_permission_bitmask() negates u8 bitmask values and assigns them
> > > to variables of type u8. Since the MSB is set
On 25/06/2018 18:47, Nick Desaulniers wrote:
> Here's an actual bug this warning caught applied to drivers/input/:
>
> dae1a432ab1f ("Input: mousedev - fix implicit conversion warning"):
> https://patchwork.kernel.org/patch/9753771/
>
How does the warning catch a bug there? While I do prefer th
On Mon, Jun 25, 2018 at 12:05 PM Paolo Bonzini wrote:
>
> On 19/06/2018 21:25, Matthias Kaehlcke wrote:
> > update_permission_bitmask() negates u8 bitmask values and assigns them
> > to variables of type u8. Since the MSB is set in the bitmask values the
> > compiler expands the negated values to
On 19/06/2018 21:25, Matthias Kaehlcke wrote:
> update_permission_bitmask() negates u8 bitmask values and assigns them
> to variables of type u8. Since the MSB is set in the bitmask values the
> compiler expands the negated values to int, which then is assigned to
> an u8 variable. Cast the negated
From: Matthias Kaehlcke
> Sent: 19 June 2018 20:25
> To: Paolo Bonzini; Radim Krčmář; Thomas Gleixner; H . Peter Anvin
> Cc: x...@kernel.org; k...@vger.kernel.org; linux-kernel@vger.kernel.org; Nick
> Desaulniers; Joe Perches;
> Matthias Kaehlcke
> Subject: [PATCH v2] kvm: x86: mmu: Add cast to ne
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