From e24328974a88aa8541e94e8bb8dfa2ade1b3c45d Mon Sep 17 00:00:00 2001 From: Donggeun Yoo Date: Wed, 2 Sep 2026 00:21:26 +0900 Subject: iio: proximity: vl53l0x-i2c: claim direct mode for raw reads vl53l0x_read_raw() starts a single-shot ranging measurement and reads back the result. Once the triggered buffer is enabled the sensor runs in continuous mode and its data-ready interrupt is routed to the trigger, so a concurrent in_distance_raw read disturbs the streaming setup and never gets its completion, returning -ETIMEDOUT. The original submission claimed direct mode here, but it was dropped during review because the driver had no buffer support at the time [1]. Continuous (buffered) mode was later added without restoring the claim [2], reintroducing the conflict. Reject direct reads while buffered capture is active by claiming direct mode around the measurement, as the vl53l1x sibling already does. Fixes: 762186c6e7b1 ("iio: proximity: vl53l0x-i2c: Added continuous mode support") Link: https://lore.kernel.org/linux-iio/20180911160300.GA9212@himanshu-Vostro-3559/ [1] Link: https://lore.kernel.org/linux-iio/20240909101508.263085-3-abhashkumarjha123@gmail.com/ [2] Signed-off-by: Donggeun Yoo Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- include/crypto/pcrypt.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 include/crypto/pcrypt.h (limited to 'include/crypto/pcrypt.h') diff --git a/include/crypto/pcrypt.h b/include/crypto/pcrypt.h new file mode 100644 index 000000000..234d7cf3c --- /dev/null +++ b/include/crypto/pcrypt.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * pcrypt - Parallel crypto engine. + * + * Copyright (C) 2009 secunet Security Networks AG + * Copyright (C) 2009 Steffen Klassert + */ + +#ifndef _CRYPTO_PCRYPT_H +#define _CRYPTO_PCRYPT_H + +#include +#include +#include + +struct pcrypt_request { + struct padata_priv padata; + void *data; + void *__ctx[] CRYPTO_MINALIGN_ATTR; +}; + +static inline void *pcrypt_request_ctx(struct pcrypt_request *req) +{ + return req->__ctx; +} + +static inline +struct padata_priv *pcrypt_request_padata(struct pcrypt_request *req) +{ + return &req->padata; +} + +static inline +struct pcrypt_request *pcrypt_padata_request(struct padata_priv *padata) +{ + return container_of(padata, struct pcrypt_request, padata); +} + +#endif -- cgit v1.3.1