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a=openpgp; fpr=49F6C1FAA74960F43A5B86A1EE7A392FDE96209F X-Developer-Signature: v=1; a=openpgp-sha256; l=1620; i=aliceryhl@google.com; h=from:subject:message-id; bh=hJ1r8AWFe6vjamRRbSdgVoDTTorMAE8/5j325qhqRPo=; b=owEBbQKS/ZANAwAKAQRYvu5YxjlGAcsmYgBpRAFSiykIxnKvVV7ampJwe+hiZPH4dlKVVfNC2 bRMusCRGIiJAjMEAAEKAB0WIQSDkqKUTWQHCvFIvbIEWL7uWMY5RgUCaUQBUgAKCRAEWL7uWMY5 Rs5ND/9lBcHvvP1F2jrlMF7zlcbzolVf/Ik/QcXkh9CEtamti0oWtsfXPKvcrmdowiTh3qqTeOG d1pcYkv8At0D62DBbQJID40ZEj2jC53yyQTl+JbIxQgkPKYKW/7tiZ/YZ5l4Be6z2ypAJGa6jlu 7P+IO8CGeyODkeDgL0U2tMGXuoKl6vJ9s93DzDVlYt3L2Dx6cpR55jWVWkBfziIoGS9Eei+zk7Z 4ylYtbeoBKVsKs4Ix3y89qYWygDe/wXz0aRIGoDHBiJpBl2ppjbCEhP0PWGQra7A3KUayfL2KYF zmZLGvVKljUBMKcuQTuQUJN31zFt6WU2+ASxRD7tU+8u2vwrGOoiHDCS5fwLhJ12/F3DBE2H4eL vVgQ+jd6O8L4xD7oC1Z77SciJgITmTJCFM/W1W4jBGkk9AFU6+XIyzMnWryfADATfwgdGytDQIu F8KCpPdYrWW3vo38v9f5rhole5bvAC9Eh3vo2PyGcGLpjIqimDbqTsLCSvJmm/yQa0TbMqIXp5a ya9OwwArkL66kUK/YcdhJDrrJZXsHnkTxjYNekN0UfUNnAkWUl7AO9hiAu/V0GLq7YAfVjeSoGl 4Gq54cB6CKjvPxv7GEqVbzEqyOnzjEJ8wCcU96VlVrvDrX57llCh1ppRHSozowXpxgScpJ/166f Mej0UG+6YnuMTlQ== X-Mailer: b4 0.14.2 Message-ID: <20251218-clk-send-sync-v3-3-e48b2e2f1eac@google.com> Subject: [PATCH v3 3/3] pwm: th1520: remove impl Send/Sync for Th1520PwmDriverData From: Alice Ryhl To: Michael Turquette , Stephen Boyd , Maarten Lankhorst , Maxime Ripard , Drew Fustini , Guo Ren , Fu Wei , "=?utf-8?q?Uwe_Kleine-K=C3=B6nig?=" , Michal Wilczynski Cc: Viresh Kumar , Miguel Ojeda , Boqun Feng , Gary Guo , "=?utf-8?q?Bj=C3=B6rn_Roy_Baron?=" , Benno Lossin , Andreas Hindborg , Trevor Gross , Danilo Krummrich , Daniel Almeida , linux-clk@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-riscv@lists.infradead.org, linux-pwm@vger.kernel.org, Alice Ryhl Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Now that clk implements Send and Sync, we no longer need to manually implement these traits for Th1520PwmDriverData. Thus remove the implementations. Signed-off-by: Alice Ryhl --- drivers/pwm/pwm_th1520.rs | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/drivers/pwm/pwm_th1520.rs b/drivers/pwm/pwm_th1520.rs index e3b7e77356fc2492077c519073e861beb3e44df9..043dc4dbc6232020195c7b73fad= 302bbb69652df 100644 --- a/drivers/pwm/pwm_th1520.rs +++ b/drivers/pwm/pwm_th1520.rs @@ -97,21 +97,6 @@ struct Th1520PwmDriverData { clk: Clk, } =20 -// This `unsafe` implementation is a temporary necessity because the under= lying `kernel::clk::Clk` -// type does not yet expose `Send` and `Sync` implementations. This block = should be removed -// as soon as the clock abstraction provides these guarantees directly. -// TODO: Remove those unsafe impl's when Clk will support them itself. - -// SAFETY: The `devres` framework requires the driver's private data to be= `Send` and `Sync`. -// We can guarantee this because the PWM core synchronizes all callbacks, = preventing concurrent -// access to the contained `iomem` and `clk` resources. -unsafe impl Send for Th1520PwmDriverData {} - -// SAFETY: The same reasoning applies as for `Send`. The PWM core's synchr= onization -// guarantees that it is safe for multiple threads to have shared access (= `&self`) -// to the driver data during callbacks. -unsafe impl Sync for Th1520PwmDriverData {} - impl pwm::PwmOps for Th1520PwmDriverData { type WfHw =3D Th1520WfHw; =20 --=20 2.52.0.351.gbe84eed79e-goog