2011-03-01 04:42:41

by Stephen Rothwell

[permalink] [raw]
Subject: linux-next: build warnings after merge of the mfd tree

Hi Samuel,

After merging the mfd tree, today's linux-next build (x86_64 allmodconfig)
produced these warnings:

drivers/video/tmiofb.c: In function 'tmiofb_hw_init':
drivers/video/tmiofb.c:270: warning: initialization discards qualifiers from pointer target type
drivers/video/tmiofb.c: In function 'tmiofb_hw_mode':
drivers/video/tmiofb.c:314: warning: initialization discards qualifiers from pointer target type
drivers/video/tmiofb.c:314: warning: unused variable 'cell'
drivers/video/tmiofb.c: In function 'tmiofb_probe':
drivers/video/tmiofb.c:683: warning: initialization discards qualifiers from pointer target type
drivers/video/tmiofb.c: In function 'tmiofb_remove':
drivers/video/tmiofb.c:811: warning: initialization discards qualifiers from pointer target type
drivers/video/tmiofb.c: In function 'tmiofb_suspend':
drivers/video/tmiofb.c:941: warning: initialization discards qualifiers from pointer target type
drivers/video/tmiofb.c: In function 'tmiofb_resume':
drivers/video/tmiofb.c:973: warning: initialization discards qualifiers from pointer target type

Introduced by commits 2a79bb1d72f5ac22dff96de340d90d512f852ecb ("mfd:
mfd_cell is now implicitly available to tc6393xb drivers") and
b6361637190e6cb7acb84509499942ada69e7136 ("fb: Use mfd_data instead of
driver_data for tmio-fb").

--
Cheers,
Stephen Rothwell [email protected]
http://www.canb.auug.org.au/~sfr/


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2011-03-01 18:53:29

by Andres Salomon

[permalink] [raw]
Subject: [PATCH] video/tmiofb: silence warnings introduced by mfd changes

On Tue, 1 Mar 2011 15:42:30 +1100
Stephen Rothwell <[email protected]> wrote:

> Hi Samuel,
>
> After merging the mfd tree, today's linux-next build (x86_64
> allmodconfig) produced these warnings:
>
> drivers/video/tmiofb.c: In function 'tmiofb_hw_init':
> drivers/video/tmiofb.c:270: warning: initialization discards
> qualifiers from pointer target type drivers/video/tmiofb.c: In
> function 'tmiofb_hw_mode': drivers/video/tmiofb.c:314: warning:
> initialization discards qualifiers from pointer target type
> drivers/video/tmiofb.c:314: warning: unused variable 'cell'
> drivers/video/tmiofb.c: In function 'tmiofb_probe':
> drivers/video/tmiofb.c:683: warning: initialization discards
> qualifiers from pointer target type drivers/video/tmiofb.c: In
> function 'tmiofb_remove': drivers/video/tmiofb.c:811: warning:
> initialization discards qualifiers from pointer target type
> drivers/video/tmiofb.c: In function 'tmiofb_suspend':
> drivers/video/tmiofb.c:941: warning: initialization discards
> qualifiers from pointer target type drivers/video/tmiofb.c: In
> function 'tmiofb_resume': drivers/video/tmiofb.c:973: warning:
> initialization discards qualifiers from pointer target type
>
> Introduced by commits 2a79bb1d72f5ac22dff96de340d90d512f852ecb ("mfd:
> mfd_cell is now implicitly available to tc6393xb drivers") and
> b6361637190e6cb7acb84509499942ada69e7136 ("fb: Use mfd_data instead of
> driver_data for tmio-fb").
>

Oops, this should fix that.




From: Andres Salomon <[email protected]>

This silences warnings such as

drivers/video/tmiofb.c: In function 'tmiofb_hw_init':
drivers/video/tmiofb.c:270: warning: initialization discards qualifiers from pointer target type

These were added by me in commit 2a79bb1d.

Signed-off-by: Andres Salomon <[email protected]>
---
drivers/video/tmiofb.c | 11 +++++------
1 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/video/tmiofb.c b/drivers/video/tmiofb.c
index 7e57d3b..9710bf8 100644
--- a/drivers/video/tmiofb.c
+++ b/drivers/video/tmiofb.c
@@ -267,7 +267,7 @@ static int tmiofb_hw_stop(struct platform_device *dev)
*/
static int tmiofb_hw_init(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct fb_info *info = platform_get_drvdata(dev);
struct tmiofb_par *par = info->par;
const struct resource *nlcr = &cell->resources[0];
@@ -311,7 +311,6 @@ static int tmiofb_hw_init(struct platform_device *dev)
*/
static void tmiofb_hw_mode(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
struct tmio_fb_data *data = mfd_get_data(dev);
struct fb_info *info = platform_get_drvdata(dev);
struct fb_videomode *mode = info->mode;
@@ -680,7 +679,7 @@ static struct fb_ops tmiofb_ops = {

static int __devinit tmiofb_probe(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct tmio_fb_data *data = mfd_get_data(dev);
struct resource *ccr = platform_get_resource(dev, IORESOURCE_MEM, 1);
struct resource *lcr = platform_get_resource(dev, IORESOURCE_MEM, 0);
@@ -808,7 +807,7 @@ err_ioremap_ccr:

static int __devexit tmiofb_remove(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct fb_info *info = platform_get_drvdata(dev);
int irq = platform_get_irq(dev, 0);
struct tmiofb_par *par;
@@ -938,7 +937,7 @@ static int tmiofb_suspend(struct platform_device *dev, pm_message_t state)
#ifdef CONFIG_FB_TMIO_ACCELL
struct tmiofb_par *par = info->par;
#endif
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
int retval = 0;

console_lock();
@@ -970,7 +969,7 @@ static int tmiofb_suspend(struct platform_device *dev, pm_message_t state)
static int tmiofb_resume(struct platform_device *dev)
{
struct fb_info *info = platform_get_drvdata(dev);
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
int retval = 0;

console_lock();
--
1.7.2.3




2011-03-01 20:32:28

by Andres Salomon

[permalink] [raw]
Subject: [PATCH] tmio: silence warnings introduced by mfd changes

On Tue, 1 Mar 2011 10:53:22 -0800
Andres Salomon <[email protected]> wrote:

> On Tue, 1 Mar 2011 15:42:30 +1100
> Stephen Rothwell <[email protected]> wrote:
>
> > Hi Samuel,
> >
> > After merging the mfd tree, today's linux-next build (x86_64
> > allmodconfig) produced these warnings:
> >
> > drivers/video/tmiofb.c: In function 'tmiofb_hw_init':
> > drivers/video/tmiofb.c:270: warning: initialization discards
> > qualifiers from pointer target type drivers/video/tmiofb.c: In
> > function 'tmiofb_hw_mode': drivers/video/tmiofb.c:314: warning:
> > initialization discards qualifiers from pointer target type
> > drivers/video/tmiofb.c:314: warning: unused variable 'cell'
> > drivers/video/tmiofb.c: In function 'tmiofb_probe':
> > drivers/video/tmiofb.c:683: warning: initialization discards
> > qualifiers from pointer target type drivers/video/tmiofb.c: In
> > function 'tmiofb_remove': drivers/video/tmiofb.c:811: warning:
> > initialization discards qualifiers from pointer target type
> > drivers/video/tmiofb.c: In function 'tmiofb_suspend':
> > drivers/video/tmiofb.c:941: warning: initialization discards
> > qualifiers from pointer target type drivers/video/tmiofb.c: In
> > function 'tmiofb_resume': drivers/video/tmiofb.c:973: warning:
> > initialization discards qualifiers from pointer target type
> >
> > Introduced by commits 2a79bb1d72f5ac22dff96de340d90d512f852ecb
> > ("mfd: mfd_cell is now implicitly available to tc6393xb drivers")
> > and b6361637190e6cb7acb84509499942ada69e7136 ("fb: Use mfd_data
> > instead of driver_data for tmio-fb").
> >
>
> Oops, this should fix that.
>
>
>


Actually, I noticed that I screwed this up for the other tmio drivers
as well. Here's a patch that addresses them all (you can
ignore the previous patch).


From: Andres Salomon <[email protected]>

This silences warnings such as

drivers/video/tmiofb.c: In function 'tmiofb_hw_init':
drivers/video/tmiofb.c:270: warning: initialization discards qualifiers from pointer target type

These were added by me in commit 2a79bb1d.

Signed-off-by: Andres Salomon <[email protected]>

moo
Signed-off-by: Andres Salomon <[email protected]>
---
drivers/mmc/host/tmio_mmc.c | 8 ++++----
drivers/mtd/nand/tmio_nand.c | 8 ++++----
drivers/usb/host/ohci-tmio.c | 8 ++++----
drivers/video/tmiofb.c | 11 +++++------
4 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 4d34fbd..39918cc 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -1191,7 +1191,7 @@ static const struct mmc_host_ops tmio_mmc_ops = {
#ifdef CONFIG_PM
static int tmio_mmc_suspend(struct platform_device *dev, pm_message_t state)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct mmc_host *mmc = platform_get_drvdata(dev);
int ret;

@@ -1206,7 +1206,7 @@ static int tmio_mmc_suspend(struct platform_device *dev, pm_message_t state)

static int tmio_mmc_resume(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct mmc_host *mmc = platform_get_drvdata(dev);
int ret = 0;

@@ -1229,7 +1229,7 @@ out:

static int __devinit tmio_mmc_probe(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct tmio_mmc_data *pdata;
struct resource *res_ctl;
struct tmio_mmc_host *host;
@@ -1344,7 +1344,7 @@ out:

static int __devexit tmio_mmc_remove(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct mmc_host *mmc = platform_get_drvdata(dev);

platform_set_drvdata(dev, NULL);
diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c
index 2383b8f..38fb167 100644
--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -319,7 +319,7 @@ static int tmio_nand_correct_data(struct mtd_info *mtd, unsigned char *buf,

static int tmio_hw_init(struct platform_device *dev, struct tmio_nand *tmio)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
int ret;

if (cell->enable) {
@@ -363,7 +363,7 @@ static int tmio_hw_init(struct platform_device *dev, struct tmio_nand *tmio)

static void tmio_hw_stop(struct platform_device *dev, struct tmio_nand *tmio)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);

tmio_iowrite8(FCR_MODE_POWER_OFF, tmio->fcr + FCR_MODE);
if (cell->disable)
@@ -515,7 +515,7 @@ static int tmio_remove(struct platform_device *dev)
#ifdef CONFIG_PM
static int tmio_suspend(struct platform_device *dev, pm_message_t state)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);

if (cell->suspend)
cell->suspend(dev);
@@ -526,7 +526,7 @@ static int tmio_suspend(struct platform_device *dev, pm_message_t state)

static int tmio_resume(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);

/* FIXME - is this required or merely another attack of the broken
* SHARP platform? Looks suspicious.
diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
index eeed164..3558491 100644
--- a/drivers/usb/host/ohci-tmio.c
+++ b/drivers/usb/host/ohci-tmio.c
@@ -185,7 +185,7 @@ static struct platform_driver ohci_hcd_tmio_driver;

static int __devinit ohci_hcd_tmio_drv_probe(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct resource *regs = platform_get_resource(dev, IORESOURCE_MEM, 0);
struct resource *config = platform_get_resource(dev, IORESOURCE_MEM, 1);
struct resource *sram = platform_get_resource(dev, IORESOURCE_MEM, 2);
@@ -274,7 +274,7 @@ static int __devexit ohci_hcd_tmio_drv_remove(struct platform_device *dev)
{
struct usb_hcd *hcd = platform_get_drvdata(dev);
struct tmio_hcd *tmio = hcd_to_tmio(hcd);
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);

usb_remove_hcd(hcd);
tmio_stop_hc(dev);
@@ -293,7 +293,7 @@ static int __devexit ohci_hcd_tmio_drv_remove(struct platform_device *dev)
#ifdef CONFIG_PM
static int ohci_hcd_tmio_drv_suspend(struct platform_device *dev, pm_message_t state)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct usb_hcd *hcd = platform_get_drvdata(dev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct tmio_hcd *tmio = hcd_to_tmio(hcd);
@@ -326,7 +326,7 @@ static int ohci_hcd_tmio_drv_suspend(struct platform_device *dev, pm_message_t s

static int ohci_hcd_tmio_drv_resume(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct usb_hcd *hcd = platform_get_drvdata(dev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct tmio_hcd *tmio = hcd_to_tmio(hcd);
diff --git a/drivers/video/tmiofb.c b/drivers/video/tmiofb.c
index 7e57d3b..9710bf8 100644
--- a/drivers/video/tmiofb.c
+++ b/drivers/video/tmiofb.c
@@ -267,7 +267,7 @@ static int tmiofb_hw_stop(struct platform_device *dev)
*/
static int tmiofb_hw_init(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct fb_info *info = platform_get_drvdata(dev);
struct tmiofb_par *par = info->par;
const struct resource *nlcr = &cell->resources[0];
@@ -311,7 +311,6 @@ static int tmiofb_hw_init(struct platform_device *dev)
*/
static void tmiofb_hw_mode(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
struct tmio_fb_data *data = mfd_get_data(dev);
struct fb_info *info = platform_get_drvdata(dev);
struct fb_videomode *mode = info->mode;
@@ -680,7 +679,7 @@ static struct fb_ops tmiofb_ops = {

static int __devinit tmiofb_probe(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct tmio_fb_data *data = mfd_get_data(dev);
struct resource *ccr = platform_get_resource(dev, IORESOURCE_MEM, 1);
struct resource *lcr = platform_get_resource(dev, IORESOURCE_MEM, 0);
@@ -808,7 +807,7 @@ err_ioremap_ccr:

static int __devexit tmiofb_remove(struct platform_device *dev)
{
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
struct fb_info *info = platform_get_drvdata(dev);
int irq = platform_get_irq(dev, 0);
struct tmiofb_par *par;
@@ -938,7 +937,7 @@ static int tmiofb_suspend(struct platform_device *dev, pm_message_t state)
#ifdef CONFIG_FB_TMIO_ACCELL
struct tmiofb_par *par = info->par;
#endif
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
int retval = 0;

console_lock();
@@ -970,7 +969,7 @@ static int tmiofb_suspend(struct platform_device *dev, pm_message_t state)
static int tmiofb_resume(struct platform_device *dev)
{
struct fb_info *info = platform_get_drvdata(dev);
- struct mfd_cell *cell = mfd_get_cell(dev);
+ const struct mfd_cell *cell = mfd_get_cell(dev);
int retval = 0;

console_lock();
--
1.7.2.3

2011-03-02 10:35:04

by Samuel Ortiz

[permalink] [raw]
Subject: Re: [PATCH] tmio: silence warnings introduced by mfd changes

Hi Andres,

On Tue, Mar 01, 2011 at 12:32:20PM -0800, Andres Salomon wrote:
> On Tue, 1 Mar 2011 10:53:22 -0800
> Andres Salomon <[email protected]> wrote:
>
> > On Tue, 1 Mar 2011 15:42:30 +1100
> > Stephen Rothwell <[email protected]> wrote:
> >
> > > Hi Samuel,
> > >
> > > After merging the mfd tree, today's linux-next build (x86_64
> > > allmodconfig) produced these warnings:
> > >
> > > drivers/video/tmiofb.c: In function 'tmiofb_hw_init':
> > > drivers/video/tmiofb.c:270: warning: initialization discards
> > > qualifiers from pointer target type drivers/video/tmiofb.c: In
> > > function 'tmiofb_hw_mode': drivers/video/tmiofb.c:314: warning:
> > > initialization discards qualifiers from pointer target type
> > > drivers/video/tmiofb.c:314: warning: unused variable 'cell'
> > > drivers/video/tmiofb.c: In function 'tmiofb_probe':
> > > drivers/video/tmiofb.c:683: warning: initialization discards
> > > qualifiers from pointer target type drivers/video/tmiofb.c: In
> > > function 'tmiofb_remove': drivers/video/tmiofb.c:811: warning:
> > > initialization discards qualifiers from pointer target type
> > > drivers/video/tmiofb.c: In function 'tmiofb_suspend':
> > > drivers/video/tmiofb.c:941: warning: initialization discards
> > > qualifiers from pointer target type drivers/video/tmiofb.c: In
> > > function 'tmiofb_resume': drivers/video/tmiofb.c:973: warning:
> > > initialization discards qualifiers from pointer target type
> > >
> > > Introduced by commits 2a79bb1d72f5ac22dff96de340d90d512f852ecb
> > > ("mfd: mfd_cell is now implicitly available to tc6393xb drivers")
> > > and b6361637190e6cb7acb84509499942ada69e7136 ("fb: Use mfd_data
> > > instead of driver_data for tmio-fb").
> > >
> >
> > Oops, this should fix that.
> >
> >
> >
>
>
> Actually, I noticed that I screwed this up for the other tmio drivers
> as well. Here's a patch that addresses them all (you can
> ignore the previous patch).
Patch applied, thanks for fixing that.

Cheers,
Samuel.

--
Intel Open Source Technology Centre
http://oss.intel.com/