hvc framework will never pass stack memory to the put_chars() function,
So the calling of kmemdup() is unnecessary, remove it.
Fixes: c4baad5029 ("virtio-console: avoid DMA from stack")
Signed-off-by: Xianting Tian
---
drivers/char/virtio_console.c | 12 ++--
1 file changed, 2 insertions
As well known, hvc backend can register its opertions to hvc backend.
the opertions contain put_chars(), get_chars() and so on.
Some hvc backend may do dma in its opertions. eg, put_chars() of
virtio-console. But in the code of hvc framework, it may pass DMA
incapable memory to put_chars() under a
On 7/30/21 10:22 PM, Masahiro Yamada wrote:
> Make architectures select TRACE_IRQFLAGS_SUPPORT instead of
> having many defines.
>
> Signed-off-by: Masahiro Yamada
> ---
>
> arch/arc/Kconfig | 4 +---
> [snip..]
Acked-by: Vineet Gupta #arch/arc
On Sat, 31 Jul 2021, Christophe Leroy wrote:
> >
> > Stan Johnson contacted me about a regression in mainline that he
> > observed on his G3 Powerbooks. Using 'git bisect' we determined that
> > this patch was the cause of the regression, i.e. commit 4c0104a83fc3
> > ("powerpc/32: Dismantle EX
Hi Christophe,
On 7/31/21 9:58 AM, Christophe Leroy wrote:
> Stan Johnson a écrit :
>
>> Hello,
>>
>> The current Debian SID kernel will not boot on a PowerBook 3400c running
>> the latest version of Debian SID. If booted using the BootX extension,
>> the kernel hangs immediately:
>>
>> "Welcome
Hello Boris,
On Fri, Jul 30, 2021 at 04:37:31PM -0400, Boris Ostrovsky wrote:
> On 7/29/21 4:37 PM, Uwe Kleine-König wrote:
> > --- a/drivers/pci/xen-pcifront.c
> > +++ b/drivers/pci/xen-pcifront.c
> > @@ -599,12 +599,12 @@ static pci_ers_result_t pcifront_common_process(int
> > cmd,
> > resu
Finn Thain a écrit :
Hi Christophe,
We found that reducing memory with the kernel parameter 'mem=464M' would
prevent the crash.
Below are Stan's notes from the 'git bisect' run. They include an
additional failure mode that might be of interest. We've also observed
"Kernel attempted to write
Stan Johnson a écrit :
Hello,
The current Debian SID kernel will not boot on a PowerBook 3400c running
the latest version of Debian SID. If booted using the BootX extension,
the kernel hangs immediately:
"Welcome to Linux, kernel 5.10.0-8-powerpc"
If booted from Mac OS, the Mac OS screen han
Finn Thain a écrit :
Hi Christophe,
On Fri, 12 Mar 2021, Christophe Leroy wrote:
In order to get more control in exception prolog, dismantle all non
standard exception macros, finishing with EXC_XFER_STD and EXC_XFER_LITE
and EXC_XFER_TEMPLATE.
Also remove transfer_to_handler_full and ret_f
On Sat, Jul 31, 2021 at 02:22:32PM +0900, Masahiro Yamada wrote:
> Make architectures select TRACE_IRQFLAGS_SUPPORT instead of
> having many defines.
>
> Signed-off-by: Masahiro Yamada
> ---
...
> arch/s390/Kconfig | 1 +
> arch/s390/Kconfig.debug | 3 ---
For s390:
Acked-by: H
Make architectures select TRACE_IRQFLAGS_SUPPORT instead of
having many defines.
Signed-off-by: Masahiro Yamada
---
arch/Kconfig | 3 +++
arch/arc/Kconfig | 4 +---
arch/arm/Kconfig | 5 +
arch/arm64/Kconfig| 4 +---
arch/csky/Kconfig
Hi Christophe,
On Fri, 12 Mar 2021, Christophe Leroy wrote:
> In order to get more control in exception prolog, dismantle all non
> standard exception macros, finishing with EXC_XFER_STD and EXC_XFER_LITE
> and EXC_XFER_TEMPLATE.
>
> Also remove transfer_to_handler_full and ret_from_except and
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