2018-03-08 17:41:45

by Gustavo A. R. Silva

[permalink] [raw]
Subject: [PATCH] video: fbdev: via: remove VLA usage

In preparation to enabling -Wvla, remove VLA usage.

Also, fixed as part of the directive to remove all VLAs from
the kernel: https://lkml.org/lkml/2018/3/7/621

Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/video/fbdev/via/via_aux_sii164.c | 2 +-
drivers/video/fbdev/via/via_aux_vt1631.c | 2 +-
drivers/video/fbdev/via/via_aux_vt1632.c | 2 +-
drivers/video/fbdev/via/via_aux_vt1636.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/video/fbdev/via/via_aux_sii164.c b/drivers/video/fbdev/via/via_aux_sii164.c
index ca1b35f..c27f62c 100644
--- a/drivers/video/fbdev/via/via_aux_sii164.c
+++ b/drivers/video/fbdev/via/via_aux_sii164.c
@@ -36,7 +36,7 @@ static void probe(struct via_aux_bus *bus, u8 addr)
.name = name};
/* check vendor id and device id */
const u8 id[] = {0x01, 0x00, 0x06, 0x00}, len = ARRAY_SIZE(id);
- u8 tmp[len];
+ u8 tmp[ARRAY_SIZE(id)];

if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
return;
diff --git a/drivers/video/fbdev/via/via_aux_vt1631.c b/drivers/video/fbdev/via/via_aux_vt1631.c
index 06e742f..32978a0 100644
--- a/drivers/video/fbdev/via/via_aux_vt1631.c
+++ b/drivers/video/fbdev/via/via_aux_vt1631.c
@@ -36,7 +36,7 @@ void via_aux_vt1631_probe(struct via_aux_bus *bus)
.name = name};
/* check vendor id and device id */
const u8 id[] = {0x06, 0x11, 0x91, 0x31}, len = ARRAY_SIZE(id);
- u8 tmp[len];
+ u8 tmp[ARRAY_SIZE(id)];

if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
return;
diff --git a/drivers/video/fbdev/via/via_aux_vt1632.c b/drivers/video/fbdev/via/via_aux_vt1632.c
index d24f4cd..cec8cc4 100644
--- a/drivers/video/fbdev/via/via_aux_vt1632.c
+++ b/drivers/video/fbdev/via/via_aux_vt1632.c
@@ -36,7 +36,7 @@ static void probe(struct via_aux_bus *bus, u8 addr)
.name = name};
/* check vendor id and device id */
const u8 id[] = {0x06, 0x11, 0x92, 0x31}, len = ARRAY_SIZE(id);
- u8 tmp[len];
+ u8 tmp[ARRAY_SIZE(id)];

if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
return;
diff --git a/drivers/video/fbdev/via/via_aux_vt1636.c b/drivers/video/fbdev/via/via_aux_vt1636.c
index 9e015c1..2b10bc2 100644
--- a/drivers/video/fbdev/via/via_aux_vt1636.c
+++ b/drivers/video/fbdev/via/via_aux_vt1636.c
@@ -36,7 +36,7 @@ void via_aux_vt1636_probe(struct via_aux_bus *bus)
.name = name};
/* check vendor id and device id */
const u8 id[] = {0x06, 0x11, 0x45, 0x33}, len = ARRAY_SIZE(id);
- u8 tmp[len];
+ u8 tmp[ARRAY_SIZE(id)];

if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
return;
--
2.7.4



2018-03-09 11:00:59

by Eric Engestrom

[permalink] [raw]
Subject: Re: [PATCH] video: fbdev: via: remove VLA usage

On Thursday, 2018-03-08 11:39:49 -0600, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wvla, remove VLA usage.
>
> Also, fixed as part of the directive to remove all VLAs from
> the kernel: https://lkml.org/lkml/2018/3/7/621
>
> Signed-off-by: Gustavo A. R. Silva <[email protected]>

Sorry for my reply on v1, I missed that Emil already replied to another
post of the same patch (side note on that, making use of `-vX` and
`--in-reply-to` helps track the evolution of patches)

This looks good to me:
Reviewed-by: Eric Engestrom <[email protected]>

> ---
> drivers/video/fbdev/via/via_aux_sii164.c | 2 +-
> drivers/video/fbdev/via/via_aux_vt1631.c | 2 +-
> drivers/video/fbdev/via/via_aux_vt1632.c | 2 +-
> drivers/video/fbdev/via/via_aux_vt1636.c | 2 +-
> 4 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/video/fbdev/via/via_aux_sii164.c b/drivers/video/fbdev/via/via_aux_sii164.c
> index ca1b35f..c27f62c 100644
> --- a/drivers/video/fbdev/via/via_aux_sii164.c
> +++ b/drivers/video/fbdev/via/via_aux_sii164.c
> @@ -36,7 +36,7 @@ static void probe(struct via_aux_bus *bus, u8 addr)
> .name = name};
> /* check vendor id and device id */
> const u8 id[] = {0x01, 0x00, 0x06, 0x00}, len = ARRAY_SIZE(id);
> - u8 tmp[len];
> + u8 tmp[ARRAY_SIZE(id)];
>
> if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
> return;
> diff --git a/drivers/video/fbdev/via/via_aux_vt1631.c b/drivers/video/fbdev/via/via_aux_vt1631.c
> index 06e742f..32978a0 100644
> --- a/drivers/video/fbdev/via/via_aux_vt1631.c
> +++ b/drivers/video/fbdev/via/via_aux_vt1631.c
> @@ -36,7 +36,7 @@ void via_aux_vt1631_probe(struct via_aux_bus *bus)
> .name = name};
> /* check vendor id and device id */
> const u8 id[] = {0x06, 0x11, 0x91, 0x31}, len = ARRAY_SIZE(id);
> - u8 tmp[len];
> + u8 tmp[ARRAY_SIZE(id)];
>
> if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
> return;
> diff --git a/drivers/video/fbdev/via/via_aux_vt1632.c b/drivers/video/fbdev/via/via_aux_vt1632.c
> index d24f4cd..cec8cc4 100644
> --- a/drivers/video/fbdev/via/via_aux_vt1632.c
> +++ b/drivers/video/fbdev/via/via_aux_vt1632.c
> @@ -36,7 +36,7 @@ static void probe(struct via_aux_bus *bus, u8 addr)
> .name = name};
> /* check vendor id and device id */
> const u8 id[] = {0x06, 0x11, 0x92, 0x31}, len = ARRAY_SIZE(id);
> - u8 tmp[len];
> + u8 tmp[ARRAY_SIZE(id)];
>
> if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
> return;
> diff --git a/drivers/video/fbdev/via/via_aux_vt1636.c b/drivers/video/fbdev/via/via_aux_vt1636.c
> index 9e015c1..2b10bc2 100644
> --- a/drivers/video/fbdev/via/via_aux_vt1636.c
> +++ b/drivers/video/fbdev/via/via_aux_vt1636.c
> @@ -36,7 +36,7 @@ void via_aux_vt1636_probe(struct via_aux_bus *bus)
> .name = name};
> /* check vendor id and device id */
> const u8 id[] = {0x06, 0x11, 0x45, 0x33}, len = ARRAY_SIZE(id);
> - u8 tmp[len];
> + u8 tmp[ARRAY_SIZE(id)];
>
> if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
> return;
> --
> 2.7.4
>
> _______________________________________________
> dri-devel mailing list
> [email protected]
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

2018-03-09 11:03:37

by Emil Velikov

[permalink] [raw]
Subject: Re: [PATCH] video: fbdev: via: remove VLA usage

On 9 March 2018 at 10:59, Eric Engestrom <[email protected]> wrote:
> On Thursday, 2018-03-08 11:39:49 -0600, Gustavo A. R. Silva wrote:
>> In preparation to enabling -Wvla, remove VLA usage.
>>
>> Also, fixed as part of the directive to remove all VLAs from
>> the kernel: https://lkml.org/lkml/2018/3/7/621
>>
>> Signed-off-by: Gustavo A. R. Silva <[email protected]>
>
> Sorry for my reply on v1, I missed that Emil already replied to another
> post of the same patch (side note on that, making use of `-vX` and
> `--in-reply-to` helps track the evolution of patches)
>
> This looks good to me:
> Reviewed-by: Eric Engestrom <[email protected]>
>
Same here
Reviewed-by: Emil Velikov <[email protected]>

-Emil

Subject: Re: [PATCH] video: fbdev: via: remove VLA usage

On Friday, March 09, 2018 11:02:24 AM Emil Velikov wrote:
> On 9 March 2018 at 10:59, Eric Engestrom <[email protected]> wrote:
> > On Thursday, 2018-03-08 11:39:49 -0600, Gustavo A. R. Silva wrote:
> >> In preparation to enabling -Wvla, remove VLA usage.
> >>
> >> Also, fixed as part of the directive to remove all VLAs from
> >> the kernel: https://lkml.org/lkml/2018/3/7/621
> >>
> >> Signed-off-by: Gustavo A. R. Silva <[email protected]>
> >
> > Sorry for my reply on v1, I missed that Emil already replied to another
> > post of the same patch (side note on that, making use of `-vX` and
> > `--in-reply-to` helps track the evolution of patches)
> >
> > This looks good to me:
> > Reviewed-by: Eric Engestrom <[email protected]>
> >
> Same here
> Reviewed-by: Emil Velikov <[email protected]>

Patch queued for 4.17, thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics


2018-03-13 03:34:30

by Gustavo A. R. Silva

[permalink] [raw]
Subject: Re: [PATCH] video: fbdev: via: remove VLA usage



On 03/09/2018 05:02 AM, Emil Velikov wrote:
> On 9 March 2018 at 10:59, Eric Engestrom <[email protected]> wrote:
>> On Thursday, 2018-03-08 11:39:49 -0600, Gustavo A. R. Silva wrote:
>>> In preparation to enabling -Wvla, remove VLA usage.
>>>
>>> Also, fixed as part of the directive to remove all VLAs from
>>> the kernel: https://lkml.org/lkml/2018/3/7/621
>>>
>>> Signed-off-by: Gustavo A. R. Silva <[email protected]>
>>
>> Sorry for my reply on v1, I missed that Emil already replied to another
>> post of the same patch (side note on that, making use of `-vX` and
>> `--in-reply-to` helps track the evolution of patches)
>>

Yep. I know. It is just that some people prefer vX in a new thread.
Anyway, I will take this into account for the next time.

>> This looks good to me:
>> Reviewed-by: Eric Engestrom <[email protected]>
>>
> Same here
> Reviewed-by: Emil Velikov <[email protected]>
>
> -Emil
>

Thanks for reviewing it, guys.
--
Gustavo A. R. Silva