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[180.53.81.189]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2e392ed1a4fsm2885691a91.17.2024.10.15.20.53.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Oct 2024 20:53:48 -0700 (PDT) From: FUJITA Tomonori To: netdev@vger.kernel.org Cc: rust-for-linux@vger.kernel.org, andrew@lunn.ch, hkallweit1@gmail.com, tmgross@umich.edu, ojeda@kernel.org, alex.gaynor@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, benno.lossin@proton.me, a.hindborg@samsung.com, aliceryhl@google.com, anna-maria@linutronix.de, frederic@kernel.org, tglx@linutronix.de, arnd@arndb.de, jstultz@google.com, sboyd@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v3 3/8] rust: time: Change output of Ktime's sub operation to Delta Date: Wed, 16 Oct 2024 12:52:08 +0900 Message-ID: <20241016035214.2229-4-fujita.tomonori@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241016035214.2229-1-fujita.tomonori@gmail.com> References: <20241016035214.2229-1-fujita.tomonori@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org Change the output type of Ktime's subtraction operation from Ktime to Delta. Currently, the output is Ktime: Ktime = Ktime - Ktime It means that Ktime is used to represent timedelta. Delta is introduced so use it. A typical example is calculating the elapsed time: Delta = current Ktime - past Ktime; Signed-off-by: FUJITA Tomonori Reviewed-by: Alice Ryhl --- rust/kernel/time.rs | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/rust/kernel/time.rs b/rust/kernel/time.rs index 38a70dc98083..8c00854db58c 100644 --- a/rust/kernel/time.rs +++ b/rust/kernel/time.rs @@ -74,16 +74,16 @@ pub fn to_ms(self) -> i64 { /// Returns the number of milliseconds between two ktimes. #[inline] pub fn ktime_ms_delta(later: Ktime, earlier: Ktime) -> i64 { - (later - earlier).to_ms() + (later - earlier).as_millis() } impl core::ops::Sub for Ktime { - type Output = Ktime; + type Output = Delta; #[inline] - fn sub(self, other: Ktime) -> Ktime { - Self { - inner: self.inner - other.inner, + fn sub(self, other: Ktime) -> Delta { + Delta { + nanos: self.inner - other.inner, } } }