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[2/9] mtd: add mtd_is_master helper

Message ID 20240701-b4-v6-10-topic-usbc-tcpci-v1-2-3fd5f4a193cc@pengutronix.de
State New
Headers show
Series AT24 EEPROM MTD Support | expand

Commit Message

Marco Felsch July 1, 2024, 1:53 p.m. UTC 
Provide a simple helper to make it easy to detect an master mtd device.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
 include/linux/mtd/mtd.h | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Sergei Shtylyov July 1, 2024, 4:14 p.m. UTC | #1 
On 7/1/24 4:53 PM, Marco Felsch wrote:

> Provide a simple helper to make it easy to detect an master mtd device.
> 
> Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
> ---
>  include/linux/mtd/mtd.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
> index 8d10d9d2e830..bf3fc2ea7230 100644
> --- a/include/linux/mtd/mtd.h
> +++ b/include/linux/mtd/mtd.h
> @@ -408,6 +408,11 @@ static inline struct mtd_info *mtd_get_master(struct mtd_info *mtd)
>  	return mtd;
>  }
>  
> +static inline bool mtd_is_master(struct mtd_info *mtd)
> +{
> +	return mtd->parent ? false : true;

   Perhaps:

	return !mtd->parent;

[...]

MBR, Sergey
Marco Felsch July 2, 2024, 8:22 a.m. UTC | #2 
On 24-07-01, Sergei Shtylyov wrote:
> On 7/1/24 4:53 PM, Marco Felsch wrote:
> 
> > Provide a simple helper to make it easy to detect an master mtd device.
> > 
> > Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
> > ---
> >  include/linux/mtd/mtd.h | 5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
> > index 8d10d9d2e830..bf3fc2ea7230 100644
> > --- a/include/linux/mtd/mtd.h
> > +++ b/include/linux/mtd/mtd.h
> > @@ -408,6 +408,11 @@ static inline struct mtd_info *mtd_get_master(struct mtd_info *mtd)
> >  	return mtd;
> >  }
> >  
> > +static inline bool mtd_is_master(struct mtd_info *mtd)
> > +{
> > +	return mtd->parent ? false : true;
> 
>    Perhaps:
> 
> 	return !mtd->parent;

Sure, if you prefer this style rather I will change it.

Regards,
  Marco
diff mbox series

Patch

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 8d10d9d2e830..bf3fc2ea7230 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -408,6 +408,11 @@  static inline struct mtd_info *mtd_get_master(struct mtd_info *mtd)
 	return mtd;
 }
 
+static inline bool mtd_is_master(struct mtd_info *mtd)
+{
+	return mtd->parent ? false : true;
+}
+
 static inline u64 mtd_get_master_ofs(struct mtd_info *mtd, u64 ofs)
 {
 	while (mtd->parent) {