mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: "Thomas Weißschuh (Schneider Electric)" <thomas.weissschuh@linutronix.de>
To: John Stultz <jstultz@google.com>,
	Thomas Gleixner <tglx@kernel.org>,
	 Stephen Boyd <sboyd@kernel.org>,
	Miroslav Lichvar <mlichvar@redhat.com>
Cc: linux-kernel@vger.kernel.org,
	"Thomas Weißschuh (Schneider Electric)"
	<thomas.weissschuh@linutronix.de>
Subject: [PATCH v2 2/4] timekeeping: Use timekeeper_is_core_tk() in timekeeping_update_on_shadow()
Date: Tue, 08 Sep 2026 08:17:32 +0200	[thread overview]
Message-ID: <20260908-timekeeping-conditionals-v2-2-5ebc3e7e1da0@linutronix.de> (raw)
In-Reply-To: <20260908-timekeeping-conditionals-v2-0-5ebc3e7e1da0@linutronix.de>

If CONFIG_POSIX_AUX_CLOCKS is disabled, the timekeeper is known to be
the core timekeeper.

Use the helper to avoid the conditional at runtime in this case.

Signed-off-by: Thomas Weißschuh (Schneider Electric) <thomas.weissschuh@linutronix.de>
---
 kernel/time/timekeeping.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 2249d7fb3cb6..12bd61e9b5de 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -842,7 +842,7 @@ static void timekeeping_update_from_shadow(struct tk_data *tkd, unsigned int act
 	tk_update_ktime_data(tk);
 	tk->tkr_mono.base_real = tk->tkr_mono.base + tk->offs_real;
 
-	if (tk->id == TIMEKEEPER_CORE) {
+	if (timekeeper_is_core_tk(tk)) {
 		tk_update_ns_to_cyc(tk, &tkd->timekeeper);
 		update_vsyscall(tk);
 		update_pvclock_gtod(tk, action & TK_CLOCK_WAS_SET);

-- 
2.55.0


  parent reply	other threads:[~2026-09-08  6:17 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-08  6:17 [PATCH v2 0/4] timekeeping: Avoid some runtime conditionals around auxiliary clocks Thomas Weißschuh (Schneider Electric)
2026-09-08  6:17 ` [PATCH v2 1/4] timekeeping: Move timekeeper_is_core_tk() up in the file Thomas Weißschuh (Schneider Electric)
2026-09-08  6:17 ` Thomas Weißschuh (Schneider Electric) [this message]
2026-09-08  6:17 ` [PATCH v2 3/4] timekeeping: Remove tk_is_aux() and its usage Thomas Weißschuh (Schneider Electric)
2026-09-08  6:17 ` [PATCH v2 4/4] timekeeping: Introduce and use timekeeper_is_clock_valid() Thomas Weißschuh (Schneider Electric)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260908-timekeeping-conditionals-v2-2-5ebc3e7e1da0@linutronix.de \
    --to=thomas.weissschuh@linutronix.de \
    --cc=jstultz@google.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mlichvar@redhat.com \
    --cc=sboyd@kernel.org \
    --cc=tglx@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®