在 2021/8/13 下午1:53, Jiri Slaby 写道:
Hi,
On 12. 08. 21, 14:26, kernel test robot wrote:
drivers/tty/hvc/hvc_console.c:190:26: warning: variable 'hp' is
uninitialized when used here [-Wuninitialized]
spin_unlock_irqrestore(&hp->c_lock, flags);
^~
在 2021/8/13 下午3:27, Greg KH 写道:
On Thu, Aug 12, 2021 at 05:45:31PM +0800, Xianting Tian wrote:
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
virti
On Thu, Aug 12, 2021 at 05:45:31PM +0800, Xianting Tian wrote:
> 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
在 2021/8/13 下午1:53, Jiri Slaby 写道:
Hi,
On 12. 08. 21, 14:26, kernel test robot wrote:
drivers/tty/hvc/hvc_console.c:190:26: warning: variable 'hp' is
uninitialized when used here [-Wuninitialized]
spin_unlock_irqrestore(&hp->c_lock, flags);
^~
Hi,
On 12. 08. 21, 14:26, kernel test robot wrote:
drivers/tty/hvc/hvc_console.c:190:26: warning: variable 'hp' is uninitialized
when used here [-Wuninitialized]
spin_unlock_irqrestore(&hp->c_lock, flags);
^~
drivers/tty/hvc/hvc_console.c:149
Hi Xianting,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on tty/tty-testing]
[also build test WARNING on char-misc/char-misc-testing soc/for-next v5.14-rc5
next-20210812]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitti
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
