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Wed, 17 Nov 2021 07:23:02 -0600 Received: from EDIEX01.ad.cirrus.com (198.61.84.80) by EDIEX02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Wed, 17 Nov 2021 13:23:00 +0000 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Wed, 17 Nov 2021 13:23:00 +0000 Received: from algalon.ad.cirrus.com (algalon.ad.cirrus.com [198.90.251.122]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 83DFC11AF; Wed, 17 Nov 2021 13:23:00 +0000 (UTC) From: Charles Keepax To: Subject: [PATCH v2 02/10] firmware: cs_dsp: Add lockdep asserts to interface functions Date: Wed, 17 Nov 2021 13:22:52 +0000 Message-ID: <20211117132300.1290-2-ckeepax@opensource.cirrus.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20211117132300.1290-1-ckeepax@opensource.cirrus.com> References: <20211117132300.1290-1-ckeepax@opensource.cirrus.com> MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-GUID: LSswTg3YIVriS7ml3mSbLVCXoV7FQqDq X-Proofpoint-ORIG-GUID: LSswTg3YIVriS7ml3mSbLVCXoV7FQqDq X-Proofpoint-Spam-Reason: safe Cc: patches@opensource.cirrus.com, alsa-devel@alsa-project.org, lgirdwood@gmail.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Some of the control functions exposed by the cs_dsp code require the pwr_lock to be held by the caller. Add lockdep_assert_held calls to ensure this is done correctly. Signed-off-by: Charles Keepax --- drivers/firmware/cirrus/cs_dsp.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c index 1a0c6c793f6a7..0d1ba7d8efa47 100644 --- a/drivers/firmware/cirrus/cs_dsp.c +++ b/drivers/firmware/cirrus/cs_dsp.c @@ -653,6 +653,8 @@ int cs_dsp_coeff_write_acked_control(struct cs_dsp_coeff_ctl *ctl, unsigned int unsigned int reg; int i, ret; + lockdep_assert_held(&dsp->pwr_lock); + if (!dsp->running) return -EPERM; @@ -754,6 +756,8 @@ int cs_dsp_coeff_write_ctrl(struct cs_dsp_coeff_ctl *ctl, const void *buf, size_ { int ret = 0; + lockdep_assert_held(&ctl->dsp->pwr_lock); + if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) ret = -EPERM; else if (buf != ctl->cache) @@ -811,6 +815,8 @@ int cs_dsp_coeff_read_ctrl(struct cs_dsp_coeff_ctl *ctl, void *buf, size_t len) { int ret = 0; + lockdep_assert_held(&ctl->dsp->pwr_lock); + if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) { if (ctl->enabled && ctl->dsp->running) return cs_dsp_coeff_read_ctrl_raw(ctl, buf, len); @@ -1453,6 +1459,8 @@ struct cs_dsp_coeff_ctl *cs_dsp_get_ctl(struct cs_dsp *dsp, const char *name, in { struct cs_dsp_coeff_ctl *pos, *rslt = NULL; + lockdep_assert_held(&dsp->pwr_lock); + list_for_each_entry(pos, &dsp->ctl_list, list) { if (!pos->subname) continue; @@ -1548,6 +1556,8 @@ struct cs_dsp_alg_region *cs_dsp_find_alg_region(struct cs_dsp *dsp, { struct cs_dsp_alg_region *alg_region; + lockdep_assert_held(&dsp->pwr_lock); + list_for_each_entry(alg_region, &dsp->alg_regions, list) { if (id == alg_region->alg && type == alg_region->type) return alg_region; @@ -2783,6 +2793,8 @@ int cs_dsp_read_raw_data_block(struct cs_dsp *dsp, int mem_type, unsigned int me unsigned int reg; int ret; + lockdep_assert_held(&dsp->pwr_lock); + if (!mem) return -EINVAL; @@ -2836,6 +2848,8 @@ int cs_dsp_write_data_word(struct cs_dsp *dsp, int mem_type, unsigned int mem_ad __be32 val = cpu_to_be32(data & 0x00ffffffu); unsigned int reg; + lockdep_assert_held(&dsp->pwr_lock); + if (!mem) return -EINVAL; -- 2.11.0