Re: [PATCH 4/6] input/vmmouse: Use vmware_hypercall API

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On Nov 24, 2023, at 11:46 AM, Simon Horman <horms@xxxxxxxxxx> wrote:
> 
> On Wed, Nov 22, 2023 at 03:30:49PM -0800, Alexey Makhalov wrote:
>> Switch from VMWARE_HYPERCALL macro to vmware_hypercall API.
>> Eliminate arch specific code. No functional changes intended.
>> 
>> Signed-off-by: Alexey Makhalov <amakhalov@xxxxxxxxxx>
> 
> Hi Alexey,
> 
> it is not strictly related to this patch, but I notice than an x86_64
> allmodconfig build with W=1 using gcc-13 fails to compile this file.
> 
> It appears that the problem relates to both priv->phys and
> psmouse->ps2dev.serio->phys being 32 bytes.
> 
> 
> drivers/input/mouse/vmmouse.c: In function ‘vmmouse_init’:
> drivers/input/mouse/vmmouse.c:455:53: error: ‘/input1’ directive output may be truncated writing 7 bytes into a region of size between 1 and 32 [-Werror=format-truncation=]
>  455 |         snprintf(priv->phys, sizeof(priv->phys), "%s/input1",
>      |                                                     ^~~~~~~
> drivers/input/mouse/vmmouse.c:455:9: note: ‘snprintf’ output between 8 and 39 bytes into a destination of size 32
>  455 |         snprintf(priv->phys, sizeof(priv->phys), "%s/input1",
>      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>  456 |                  psmouse->ps2dev.serio->phys);
>      |                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> ...

Hi Simon, thanks for reporting the issue.
Zack, please take a look.

—Alexey





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