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Wysocki" , driver-core@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH] driver core: introduce PROBE_FORCE_ASYNCHRONOUS Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Add PROBE_FORCE_ASYNCHRONOUS probe type enum and update driver_allows_async_probing() to allow asynchronous probing for drivers marked with this type. While PROBE_PREFER_ASYNCHRONOUS exists, it represents a temporary opt-in preference. Subsystems that require asynchronous probing (such as slow legacy buses) need a dedicated probe type to guarantee asynchronous execution. Assisted-by: Antigravity:gemini-3.5-flash Signed-off-by: Dmitry Torokhov --- I am planning to rework serio and gameport subsystems to rely on asynchronous probing instead of rolling their own implementations. drivers/base/dd.c | 1 + include/linux/device/driver.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 60c005223844..34df7b4416ac 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -936,6 +936,7 @@ __setup("driver_async_probe=", save_async_options); static bool driver_allows_async_probing(const struct device_driver *drv) { switch (drv->probe_type) { + case PROBE_FORCE_ASYNCHRONOUS: case PROBE_PREFER_ASYNCHRONOUS: return true; diff --git a/include/linux/device/driver.h b/include/linux/device/driver.h index 768a1334c0a1..4b3901a35e85 100644 --- a/include/linux/device/driver.h +++ b/include/linux/device/driver.h @@ -48,6 +48,7 @@ enum probe_type { PROBE_DEFAULT_STRATEGY, PROBE_PREFER_ASYNCHRONOUS, PROBE_FORCE_SYNCHRONOUS, + PROBE_FORCE_ASYNCHRONOUS, }; /** -- 2.55.0.229.g6434b31f56-goog -- Dmitry