Since binutils 2.39, ld will print a warning if any stack section is
executable, which is the default for stack sections on files without a
.note.GNU-stack section.
This was fixed for x86 in commit ffcf9c5700e4 ("x86: link vdso and boot with -z
noexecstack --no-warn-rwx-segments"),
but remained b
while(){}, semicolon do not need to be appended.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2237
Reported-by: Abaci Robot
Signed-off-by: Yang Li
---
arch/um/drivers/virtio_uml.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/um/drivers/virtio_uml.c b/arch/um/
Because Nadav asked about tracing/kprobing idle, I had another go around
and noticed not all functions calling ct_cpuidle_enter are __cpuidle.
Basically all cpuidle_driver::enter functions should be __cpuidle; i'll
do that audit shortly.
For now this is ct_cpuidle_enter / CPU_IDLE_ENTER users.
On Mon, Sep 19, 2022 at 11:59:50AM +0200, Peter Zijlstra wrote:
> Doing RCU-idle outside the driver, only to then temporarily enable it
> again, some *four* times, before going idle is daft.
>
> Signed-off-by: Peter Zijlstra (Intel)
> Reviewed-by: Tony Lindgren
> Tested-by: Tony Lindgren
Revie
On Mon, Sep 19, 2022 at 11:59:39AM +0200, Peter Zijlstra wrote:
> Hi All!
>
> At long last, a respin of the cpuidle vs rcu cleanup patches.
>
> v1: https://lkml.kernel.org/r/20220608142723.103523...@infradead.org
>
> These here patches clean up the mess that is cpuidle vs rcuidle.
>
> At the en
On Mon, Sep 19, 2022 at 6:18 PM Peter Zijlstra wrote:
>
> Current arch_cpu_idle() is called with IRQs disabled, but will return
> with IRQs enabled.
>
> However, the very first thing the generic code does after calling
> arch_cpu_idle() is raw_local_irq_disable(). This means that
> architectures t
On Mon, Sep 19, 2022 at 03:19:27PM +0200, Frederic Weisbecker wrote:
> On Mon, Sep 19, 2022 at 11:59:42AM +0200, Peter Zijlstra wrote:
> > cpuidle_state::enter() methods should be IRQ invariant
>
> Got a bit confused with the invariant thing since the first chunck I
> see in this patch is a conver
On Mon, Sep 19, 2022 at 05:19:05PM +0200, Peter Zijlstra wrote:
> On Mon, Sep 19, 2022 at 04:31:42PM +0200, Frederic Weisbecker wrote:
> > On Mon, Sep 19, 2022 at 11:59:48AM +0200, Peter Zijlstra wrote:
> > > Doing RCU-idle outside the driver, only to then teporarily enable it
> > > again before go
On Mon, Sep 19, 2022 at 04:21:23PM +0200, Frederic Weisbecker wrote:
> On Mon, Sep 19, 2022 at 11:59:47AM +0200, Peter Zijlstra wrote:
> > Doing RCU-idle outside the driver, only to then temporarily enable it
> > again, at least twice, before going idle is daft.
>
> Hmm, what ends up calling RCU_I
On Tue, Sep 20, 2022 at 10:57:00AM +0200, Peter Zijlstra wrote:
> On Mon, Sep 19, 2022 at 03:19:27PM +0200, Frederic Weisbecker wrote:
> > On Mon, Sep 19, 2022 at 11:59:42AM +0200, Peter Zijlstra wrote:
> > > cpuidle_state::enter() methods should be IRQ invariant
> >
> > Got a bit confused with th
On Tue, Sep 20, 2022 at 10:58:59AM +0200, Peter Zijlstra wrote:
> On Mon, Sep 19, 2022 at 04:21:23PM +0200, Frederic Weisbecker wrote:
> > On Mon, Sep 19, 2022 at 11:59:47AM +0200, Peter Zijlstra wrote:
> > > Doing RCU-idle outside the driver, only to then temporarily enable it
> > > again, at leas
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