* [PATCH 2/2] video: clps711x: Fix sparse warnings
@ 2014-06-28 6:34 Alexander Shiyan
2014-07-01 6:14 ` Tomi Valkeinen
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Alexander Shiyan @ 2014-06-28 6:34 UTC (permalink / raw)
To: linux-fbdev
This patch fixes below warnings:
CHECK drivers/video/fbdev/clps711x-fb.c
drivers/video/fbdev/clps711x-fb.c:247:24: warning: incorrect type in argument 1 (different address spaces)
drivers/video/fbdev/clps711x-fb.c:247:24: expected void const *ptr
drivers/video/fbdev/clps711x-fb.c:247:24: got char [noderef] <asn:2>*screen_base
drivers/video/fbdev/clps711x-fb.c:248:35: warning: incorrect type in argument 1 (different address spaces)
drivers/video/fbdev/clps711x-fb.c:248:35: expected void const *ptr
drivers/video/fbdev/clps711x-fb.c:248:35: got char [noderef] <asn:2>*screen_base
drivers/video/fbdev/clps711x-fb.c:314:17: warning: incorrect type in initializer (different address spaces)
drivers/video/fbdev/clps711x-fb.c:314:17: expected void *__p
drivers/video/fbdev/clps711x-fb.c:314:17: got char [noderef] <asn:2>*screen_base
CC [M] drivers/video/fbdev/clps711x-fb.o
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
drivers/video/fbdev/clps711x-fb.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/video/fbdev/clps711x-fb.c b/drivers/video/fbdev/clps711x-fb.c
index 4d17fbb..bbf40fe 100644
--- a/drivers/video/fbdev/clps711x-fb.c
+++ b/drivers/video/fbdev/clps711x-fb.c
@@ -244,8 +244,8 @@ static int clps711x_fb_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
info->screen_base = devm_ioremap_resource(dev, res);
- if (IS_ERR(info->screen_base)) {
- ret = PTR_ERR(info->screen_base);
+ if (IS_ERR((__force void *)info->screen_base)) {
+ ret = PTR_ERR((__force void *)info->screen_base);
goto out_fb_release;
}
@@ -311,7 +311,7 @@ static int clps711x_fb_probe(struct platform_device *pdev)
/* Setup start FB address */
writeb(info->fix.smem_start >> 28, cfb->base + CLPS711X_FBADDR);
/* Clean FB memory */
- memset(info->screen_base, 0, cfb->buffsize);
+ memset_io(info->screen_base, 0, cfb->buffsize);
}
cfb->lcd_pwr = devm_regulator_get(dev, "lcd");
--
1.8.5.5
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [PATCH 2/2] video: clps711x: Fix sparse warnings
2014-06-28 6:34 [PATCH 2/2] video: clps711x: Fix sparse warnings Alexander Shiyan
@ 2014-07-01 6:14 ` Tomi Valkeinen
2014-07-01 10:22 ` Tomi Valkeinen
2014-07-04 8:06 ` Tomi Valkeinen
2 siblings, 0 replies; 7+ messages in thread
From: Tomi Valkeinen @ 2014-07-01 6:14 UTC (permalink / raw)
To: linux-fbdev
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On 28/06/14 09:34, Alexander Shiyan wrote:
> This patch fixes below warnings:
> CHECK drivers/video/fbdev/clps711x-fb.c
> drivers/video/fbdev/clps711x-fb.c:247:24: warning: incorrect type in argument 1 (different address spaces)
> drivers/video/fbdev/clps711x-fb.c:247:24: expected void const *ptr
> drivers/video/fbdev/clps711x-fb.c:247:24: got char [noderef] <asn:2>*screen_base
> drivers/video/fbdev/clps711x-fb.c:248:35: warning: incorrect type in argument 1 (different address spaces)
> drivers/video/fbdev/clps711x-fb.c:248:35: expected void const *ptr
> drivers/video/fbdev/clps711x-fb.c:248:35: got char [noderef] <asn:2>*screen_base
> drivers/video/fbdev/clps711x-fb.c:314:17: warning: incorrect type in initializer (different address spaces)
> drivers/video/fbdev/clps711x-fb.c:314:17: expected void *__p
> drivers/video/fbdev/clps711x-fb.c:314:17: got char [noderef] <asn:2>*screen_base
> CC [M] drivers/video/fbdev/clps711x-fb.o
>
> Reported-by: kbuild test robot <fengguang.wu@intel.com>
> Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
> ---
> drivers/video/fbdev/clps711x-fb.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/video/fbdev/clps711x-fb.c b/drivers/video/fbdev/clps711x-fb.c
> index 4d17fbb..bbf40fe 100644
> --- a/drivers/video/fbdev/clps711x-fb.c
> +++ b/drivers/video/fbdev/clps711x-fb.c
> @@ -244,8 +244,8 @@ static int clps711x_fb_probe(struct platform_device *pdev)
>
> res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
> info->screen_base = devm_ioremap_resource(dev, res);
> - if (IS_ERR(info->screen_base)) {
> - ret = PTR_ERR(info->screen_base);
> + if (IS_ERR((__force void *)info->screen_base)) {
> + ret = PTR_ERR((__force void *)info->screen_base);
I don't see any other user of devm_ioremap_resource() having that kind
of casts. Why are they needed here?
Tomi
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH 2/2] video: clps711x: Fix sparse warnings
2014-06-28 6:34 [PATCH 2/2] video: clps711x: Fix sparse warnings Alexander Shiyan
2014-07-01 6:14 ` Tomi Valkeinen
@ 2014-07-01 10:22 ` Tomi Valkeinen
2014-07-04 8:06 ` Tomi Valkeinen
2 siblings, 0 replies; 7+ messages in thread
From: Tomi Valkeinen @ 2014-07-01 10:22 UTC (permalink / raw)
To: linux-fbdev
[-- Attachment #1: Type: text/plain, Size: 1517 bytes --]
On 01/07/14 09:23, Alexander Shiyan wrote:
> Tue, 1 Jul 2014 09:14:02 +0300 от Tomi Valkeinen <tomi.valkeinen@ti.com>:
>> On 28/06/14 09:34, Alexander Shiyan wrote:
>>> This patch fixes below warnings:
>>> CHECK drivers/video/fbdev/clps711x-fb.c
>>> drivers/video/fbdev/clps711x-fb.c:247:24: warning: incorrect type in argument 1 (different address spaces)
>>> drivers/video/fbdev/clps711x-fb.c:247:24: expected void const *ptr
>>> drivers/video/fbdev/clps711x-fb.c:247:24: got char [noderef] <asn:2>*screen_base
>>> drivers/video/fbdev/clps711x-fb.c:248:35: warning: incorrect type in argument 1 (different address spaces)
>>> drivers/video/fbdev/clps711x-fb.c:248:35: expected void const *ptr
>>> drivers/video/fbdev/clps711x-fb.c:248:35: got char [noderef] <asn:2>*screen_base
> ...
>>> info->screen_base = devm_ioremap_resource(dev, res);
>>> - if (IS_ERR(info->screen_base)) {
>>> - ret = PTR_ERR(info->screen_base);
>>> + if (IS_ERR((__force void *)info->screen_base)) {
>>> + ret = PTR_ERR((__force void *)info->screen_base);
>>
>> I don't see any other user of devm_ioremap_resource() having that kind
>> of casts. Why are they needed here?
>
> Not needed, type cast was done only to remove sparse warnings.
Right, but I think either sparse is wrong here, or the PTR_ERR/IS_ERR
are wrong. You shouldn't do typecasts like that to hide those warnings.
The memset warning is correct, because you shouldn't use memset to
__iomem memory.
Tomi
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH 2/2] video: clps711x: Fix sparse warnings
2014-06-28 6:34 [PATCH 2/2] video: clps711x: Fix sparse warnings Alexander Shiyan
2014-07-01 6:14 ` Tomi Valkeinen
2014-07-01 10:22 ` Tomi Valkeinen
@ 2014-07-04 8:06 ` Tomi Valkeinen
2 siblings, 0 replies; 7+ messages in thread
From: Tomi Valkeinen @ 2014-07-04 8:06 UTC (permalink / raw)
To: linux-fbdev
[-- Attachment #1: Type: text/plain, Size: 1771 bytes --]
Hi,
On 01/07/14 13:31, Alexander Shiyan wrote:
> Tue, 1 Jul 2014 13:22:51 +0300 от Tomi Valkeinen <tomi.valkeinen@ti.com>:
>> On 01/07/14 09:23, Alexander Shiyan wrote:
>>> Tue, 1 Jul 2014 09:14:02 +0300 от Tomi Valkeinen <tomi.valkeinen@ti.com>:
>>>> On 28/06/14 09:34, Alexander Shiyan wrote:
>>>>> This patch fixes below warnings:
>>>>> CHECK drivers/video/fbdev/clps711x-fb.c
>>>>> drivers/video/fbdev/clps711x-fb.c:247:24: warning: incorrect type in argument 1 (different address spaces)
>>>>> drivers/video/fbdev/clps711x-fb.c:247:24: expected void const *ptr
>>>>> drivers/video/fbdev/clps711x-fb.c:247:24: got char [noderef] <asn:2>*screen_base
>>>>> drivers/video/fbdev/clps711x-fb.c:248:35: warning: incorrect type in argument 1 (different address spaces)
>>>>> drivers/video/fbdev/clps711x-fb.c:248:35: expected void const *ptr
>>>>> drivers/video/fbdev/clps711x-fb.c:248:35: got char [noderef] <asn:2>*screen_base
>>> ...
>>>>> info->screen_base = devm_ioremap_resource(dev, res);
>>>>> - if (IS_ERR(info->screen_base)) {
>>>>> - ret = PTR_ERR(info->screen_base);
>>>>> + if (IS_ERR((__force void *)info->screen_base)) {
>>>>> + ret = PTR_ERR((__force void *)info->screen_base);
>>>>
>>>> I don't see any other user of devm_ioremap_resource() having that kind
>>>> of casts. Why are they needed here?
>>>
>>> Not needed, type cast was done only to remove sparse warnings.
>>
>> Right, but I think either sparse is wrong here, or the PTR_ERR/IS_ERR
>> are wrong. You shouldn't do typecasts like that to hide those warnings.
>
> Well, I'll remove these changes and send a second version of the patch.
I applied these two patches, and removed the type casts from the second one.
Tomi
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 2/2] video: imxfb: Add feature to =?UTF-8?B?c2V0dXAgUFdNIENvb
@ 2013-07-26 7:59 Alexander Shiyan
2014-07-01 6:23 ` [PATCH 2/2] video: clps711x: Fix sparse warnings Alexander Shiyan
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Alexander Shiyan @ 2013-07-26 7:59 UTC (permalink / raw)
To: linux-arm-kernel
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH 2/2] video: clps711x: Fix sparse warnings
2013-07-26 7:59 [PATCH 2/2] video: imxfb: Add feature to =?UTF-8?B?c2V0dXAgUFdNIENvb Alexander Shiyan
@ 2014-07-01 6:23 ` Alexander Shiyan
2014-07-01 10:31 ` Alexander Shiyan
2014-07-04 8:35 ` Alexander Shiyan
2 siblings, 0 replies; 7+ messages in thread
From: Alexander Shiyan @ 2014-07-01 6:23 UTC (permalink / raw)
To: linux-fbdev
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LS0KCg=
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 2/2] video: clps711x: Fix sparse warnings
2013-07-26 7:59 [PATCH 2/2] video: imxfb: Add feature to =?UTF-8?B?c2V0dXAgUFdNIENvb Alexander Shiyan
2014-07-01 6:23 ` [PATCH 2/2] video: clps711x: Fix sparse warnings Alexander Shiyan
@ 2014-07-01 10:31 ` Alexander Shiyan
2014-07-04 8:35 ` Alexander Shiyan
2 siblings, 0 replies; 7+ messages in thread
From: Alexander Shiyan @ 2014-07-01 10:31 UTC (permalink / raw)
To: linux-fbdev
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 2/2] video: clps711x: Fix sparse warnings
2013-07-26 7:59 [PATCH 2/2] video: imxfb: Add feature to =?UTF-8?B?c2V0dXAgUFdNIENvb Alexander Shiyan
2014-07-01 6:23 ` [PATCH 2/2] video: clps711x: Fix sparse warnings Alexander Shiyan
2014-07-01 10:31 ` Alexander Shiyan
@ 2014-07-04 8:35 ` Alexander Shiyan
2 siblings, 0 replies; 7+ messages in thread
From: Alexander Shiyan @ 2014-07-04 8:35 UTC (permalink / raw)
To: linux-fbdev
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^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2014-07-04 8:35 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-06-28 6:34 [PATCH 2/2] video: clps711x: Fix sparse warnings Alexander Shiyan
2014-07-01 6:14 ` Tomi Valkeinen
2014-07-01 10:22 ` Tomi Valkeinen
2014-07-04 8:06 ` Tomi Valkeinen
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2013-07-26 7:59 [PATCH 2/2] video: imxfb: Add feature to =?UTF-8?B?c2V0dXAgUFdNIENvb Alexander Shiyan
2014-07-01 6:23 ` [PATCH 2/2] video: clps711x: Fix sparse warnings Alexander Shiyan
2014-07-01 10:31 ` Alexander Shiyan
2014-07-04 8:35 ` Alexander Shiyan
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