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AJvYcCVmQ63+TbBMoMlUNbQvJYpF9ZqDXuZiRVZXU64arhicRTPkDgomcQbtUrayeBqmbgLMX02F8MsCbQ==@vger.kernel.org X-Gm-Message-State: AOJu0YylA9C37YBFODMq7IDtXdli+DrTHBcrQBtkhzXpFJRcEXWeOY2a XZrWKaAruEb9CoZ7NHhcLoj4YtKkTiNJKBdOkWjkdhFAq6Dn0uWrx6CdphqIb2BaZYyOzc+H0Pl Ni3lWkdGedQDEMMN/Vg== X-Google-Smtp-Source: AGHT+IFD1cfJ8UvE+arlsN4Q/pztwM830HHKQSYiiR0oQA7gs4M/kyYn5nx3HAt5EUs2SUtbpxbRKJSK1nrxs4c= X-Received: from wmbz7.prod.google.com ([2002:a05:600c:c087:b0:46f:aa50:d700]) (user=aliceryhl job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:474a:b0:46f:b42e:e39c with SMTP id 5b1f17b1804b1-4711794902dmr54802325e9.41.1760810594858; Sat, 18 Oct 2025 11:03:14 -0700 (PDT) Date: Sat, 18 Oct 2025 18:03:12 +0000 In-Reply-To: <20251018-cstr-core-v18-0-ef3d02760804@gmail.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251018-cstr-core-v18-0-ef3d02760804@gmail.com> X-Mailer: git-send-email 2.51.0.915.g61a8936c21-goog Message-ID: <20251018180313.3615630-1-aliceryhl@google.com> Subject: [PATCH v18 13/16] rust: regulator: use `CStr::as_char_ptr` From: Alice Ryhl To: tamird@gmail.com Cc: Liam.Howlett@oracle.com, a.hindborg@kernel.org, airlied@gmail.com, alex.gaynor@gmail.com, aliceryhl@google.com, arve@android.com, axboe@kernel.dk, bhelgaas@google.com, bjorn3_gh@protonmail.com, boqun.feng@gmail.com, brauner@kernel.org, broonie@kernel.org, cmllamas@google.com, dakr@kernel.org, dri-devel@lists.freedesktop.org, gary@garyguo.net, gregkh@linuxfoundation.org, jack@suse.cz, joelagnelf@nvidia.com, justinstitt@google.com, kwilczynski@kernel.org, leitao@debian.org, lgirdwood@gmail.com, linux-block@vger.kernel.org, linux-clk@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, llvm@lists.linux.dev, longman@redhat.com, lorenzo.stoakes@oracle.com, lossin@kernel.org, maco@android.com, mcgrof@kernel.org, mingo@redhat.com, mmaurer@google.com, morbo@google.com, mturquette@baylibre.com, nathan@kernel.org, nick.desaulniers+lkml@gmail.com, nm@ti.com, ojeda@kernel.org, peterz@infradead.org, rafael@kernel.org, russ.weight@linux.dev, rust-for-linux@vger.kernel.org, sboyd@kernel.org, simona@ffwll.ch, surenb@google.com, tkjos@android.com, tmgross@umich.edu, urezki@gmail.com, vbabka@suse.cz, vireshk@kernel.org, viro@zeniv.linux.org.uk, will@kernel.org Content-Type: text/plain; charset="UTF-8" From: Tamir Duberstein Replace the use of `as_ptr` which works through `::deref()` in preparation for replacing `kernel::str::CStr` with `core::ffi::CStr` as the latter does not implement `Deref`. Signed-off-by: Tamir Duberstein Signed-off-by: Alice Ryhl --- rust/kernel/regulator.rs | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/rust/kernel/regulator.rs b/rust/kernel/regulator.rs index b55a201e5029..65a4eb096cae 100644 --- a/rust/kernel/regulator.rs +++ b/rust/kernel/regulator.rs @@ -84,7 +84,7 @@ pub struct Error { pub fn devm_enable(dev: &Device, name: &CStr) -> Result { // SAFETY: `dev` is a valid and bound device, while `name` is a valid C // string. - to_result(unsafe { bindings::devm_regulator_get_enable(dev.as_raw(), name.as_ptr()) }) + to_result(unsafe { bindings::devm_regulator_get_enable(dev.as_raw(), name.as_char_ptr()) }) } /// Same as [`devm_enable`], but calls `devm_regulator_get_enable_optional` @@ -102,7 +102,9 @@ pub fn devm_enable(dev: &Device, name: &CStr) -> Result { pub fn devm_enable_optional(dev: &Device, name: &CStr) -> Result { // SAFETY: `dev` is a valid and bound device, while `name` is a valid C // string. - to_result(unsafe { bindings::devm_regulator_get_enable_optional(dev.as_raw(), name.as_ptr()) }) + to_result(unsafe { + bindings::devm_regulator_get_enable_optional(dev.as_raw(), name.as_char_ptr()) + }) } /// A `struct regulator` abstraction. @@ -268,7 +270,8 @@ pub fn get_voltage(&self) -> Result { fn get_internal(dev: &Device, name: &CStr) -> Result> { // SAFETY: It is safe to call `regulator_get()`, on a device pointer // received from the C code. - let inner = from_err_ptr(unsafe { bindings::regulator_get(dev.as_raw(), name.as_ptr()) })?; + let inner = + from_err_ptr(unsafe { bindings::regulator_get(dev.as_raw(), name.as_char_ptr()) })?; // SAFETY: We can safely trust `inner` to be a pointer to a valid // regulator if `ERR_PTR` was not returned. -- 2.51.0.915.g61a8936c21-goog