> -----Original Message----- > From: Easwar Hariharan <[email protected]> > Sent: Wednesday, October 30, 2024 1:48 PM > To: KY Srinivasan <[email protected]>; Haiyang Zhang > <[email protected]>; Wei Liu <[email protected]>; Dexuan Cui > <[email protected]>; [email protected]; Anna-Maria Behnsen > <[email protected]>; Thomas Gleixner <[email protected]>; Geert > Uytterhoeven <[email protected]>; Marcel Holtmann > <[email protected]>; Johan Hedberg <[email protected]>; Luiz > Augusto von Dentz <[email protected]>; linux- > [email protected]; [email protected]; Praveen Kumar > <[email protected]>; Naman Jain > <[email protected]> > Cc: Michael Kelley <[email protected]>; Easwar Hariharan > <[email protected]>; Von Dentz, Luiz > <[email protected]> > Subject: [PATCH v3 1/2] jiffies: Define secs_to_jiffies() > > secs_to_jiffies() is defined in hci_event.c and cannot be reused by > other call sites. Hoist it into the core code to allow conversion of the > ~1150 usages of msecs_to_jiffies() that either: > - use a multiplier value of 1000 or equivalently MSEC_PER_SEC, or > - have timeouts that are denominated in seconds (i.e. end in 000) > > This will also allow conversion of yet more sites that use (sec * HZ) > directly, and improve their readability. > > TO: K. Y. Srinivasan <[email protected]> > TO: Haiyang Zhang <[email protected]> > TO: Wei Liu <[email protected]> > TO: Dexuan Cui <[email protected]> > TO: [email protected] > TO: Anna-Maria Behnsen <[email protected]> > TO: Thomas Gleixner <[email protected]> > TO: Geert Uytterhoeven <[email protected]> > TO: Marcel Holtmann <[email protected]> > TO: Johan Hedberg <[email protected]> > TO: Luiz Augusto von Dentz <[email protected]> > TO: [email protected] > TO: [email protected] > Suggested-by: Michael Kelley <[email protected]> > Reviewed-by: Luiz Augusto von Dentz <[email protected]> > Signed-off-by: Easwar Hariharan <[email protected]> > --- > include/linux/jiffies.h | 12 ++++++++++++ > net/bluetooth/hci_event.c | 2 -- > 2 files changed, 12 insertions(+), 2 deletions(-) > > diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h > index > 1220f0fbe5bf9fb6c559b4efd603db3e97db9b65..e17c220ed56e587fd55fb9cf4a133a5 > 3588af940 100644 > --- a/include/linux/jiffies.h > +++ b/include/linux/jiffies.h > @@ -526,6 +526,18 @@ static __always_inline unsigned long > msecs_to_jiffies(const unsigned int m) > } > } > > +/** > + * secs_to_jiffies: - convert seconds to jiffies > + * @_secs: time in seconds > + * > + * Conversion is done by simple multiplication with HZ > + * secs_to_jiffies() is defined as a macro rather than a static inline > + * function due to its potential application in struct initializers. > + * > + * Return: jiffies value > + */ > +#define secs_to_jiffies(_secs) ((_secs) * HZ) > + > extern unsigned long __usecs_to_jiffies(const unsigned int u); > #if !(USEC_PER_SEC % HZ) > static inline unsigned long _usecs_to_jiffies(const unsigned int u) > diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c > index > 0bbad90ddd6f87e87c03859bae48a7901d39b634..7b35c58bbbeb79f2b50a02212771fb2 > 83ba5643d 100644 > --- a/net/bluetooth/hci_event.c > +++ b/net/bluetooth/hci_event.c > @@ -42,8 +42,6 @@ > #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \ > "\x00\x00\x00\x00\x00\x00\x00\x00" > > -#define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000) > - > /* Handle HCI Event packets */ > > static void *hci_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb, > > -- > 2.34.1
All looks good. But can you consider naming the macro as s2jiffy()? Just to be shorter, so after adopting this macro we don't have to split some lines for over 80 characters:) Thanks, - Haiyang
