diff mbox

ARM: OMAP: clock: Fix debugfs_create_*() usage

Message ID 1514906735-8977-1-git-send-email-geert+renesas@glider.be (mailing list archive)
State New, archived
Headers show

Commit Message

Geert Uytterhoeven Jan. 2, 2018, 3:25 p.m. UTC
When exposing data access through debugfs, the correct
debugfs_create_*() functions must be used, depending on data type.

Remove all casts from data pointers passed to debugfs_create_*()
functions, as such casts prevent the compiler from flagging bugs.

Correct all wrong usage:
  - clk.rate is unsigned long, not u32,
  - clk.flags is u8, not u32, which exposed the successive
    clk.rate_offset and clk.src_offset fields.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Compile-tested only.
---
 arch/arm/mach-omap1/clock.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Aaro Koskinen Jan. 9, 2018, 5:37 p.m. UTC | #1
Hi,

On Tue, Jan 02, 2018 at 04:25:35PM +0100, Geert Uytterhoeven wrote:
> When exposing data access through debugfs, the correct
> debugfs_create_*() functions must be used, depending on data type.
> 
> Remove all casts from data pointers passed to debugfs_create_*()
> functions, as such casts prevent the compiler from flagging bugs.
> 
> Correct all wrong usage:
>   - clk.rate is unsigned long, not u32,
>   - clk.flags is u8, not u32, which exposed the successive
>     clk.rate_offset and clk.src_offset fields.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>

A.

> ---
> Compile-tested only.
> ---
>  arch/arm/mach-omap1/clock.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
> index 43e3e188f5213418..fa512413a4717221 100644
> --- a/arch/arm/mach-omap1/clock.c
> +++ b/arch/arm/mach-omap1/clock.c
> @@ -1011,17 +1011,17 @@ static int clk_debugfs_register_one(struct clk *c)
>  		return -ENOMEM;
>  	c->dent = d;
>  
> -	d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount);
> +	d = debugfs_create_u8("usecount", S_IRUGO, c->dent, &c->usecount);
>  	if (!d) {
>  		err = -ENOMEM;
>  		goto err_out;
>  	}
> -	d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate);
> +	d = debugfs_create_ulong("rate", S_IRUGO, c->dent, &c->rate);
>  	if (!d) {
>  		err = -ENOMEM;
>  		goto err_out;
>  	}
> -	d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags);
> +	d = debugfs_create_x8("flags", S_IRUGO, c->dent, &c->flags);
>  	if (!d) {
>  		err = -ENOMEM;
>  		goto err_out;
> -- 
> 2.7.4
> 
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Tony Lindgren Feb. 14, 2018, 4:22 p.m. UTC | #2
* Aaro Koskinen <aaro.koskinen@iki.fi> [180109 17:40]:
> Hi,
> 
> On Tue, Jan 02, 2018 at 04:25:35PM +0100, Geert Uytterhoeven wrote:
> > When exposing data access through debugfs, the correct
> > debugfs_create_*() functions must be used, depending on data type.
> > 
> > Remove all casts from data pointers passed to debugfs_create_*()
> > functions, as such casts prevent the compiler from flagging bugs.
> > 
> > Correct all wrong usage:
> >   - clk.rate is unsigned long, not u32,
> >   - clk.flags is u8, not u32, which exposed the successive
> >     clk.rate_offset and clk.src_offset fields.
> > 
> > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> 
> Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>

Applying into omap-for-v4.16/fixes thanks.

Tony
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diff mbox

Patch

diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index 43e3e188f5213418..fa512413a4717221 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -1011,17 +1011,17 @@  static int clk_debugfs_register_one(struct clk *c)
 		return -ENOMEM;
 	c->dent = d;
 
-	d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount);
+	d = debugfs_create_u8("usecount", S_IRUGO, c->dent, &c->usecount);
 	if (!d) {
 		err = -ENOMEM;
 		goto err_out;
 	}
-	d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate);
+	d = debugfs_create_ulong("rate", S_IRUGO, c->dent, &c->rate);
 	if (!d) {
 		err = -ENOMEM;
 		goto err_out;
 	}
-	d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags);
+	d = debugfs_create_x8("flags", S_IRUGO, c->dent, &c->flags);
 	if (!d) {
 		err = -ENOMEM;
 		goto err_out;