Re: [alsa-devel] [PATCH v7 16/24] ASoC: qdsp6: q6asm: Add support to audio stream apis

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On 5/1/2018 5:38 PM, Srinivas Kandagatla wrote:
+static int __q6asm_run(struct audio_client *ac, uint32_t flags,
+	      uint32_t msw_ts, uint32_t lsw_ts, bool wait)
+{
+	struct asm_session_cmd_run_v2 *run;
+	struct apr_pkt *pkt;
+	int pkt_size, rc;
+	void *p;
+
+	pkt_size = APR_HDR_SIZE + sizeof(*run);
+	p = kzalloc(pkt_size, GFP_KERNEL);
Should be GFP_ATOMIC as this API is also called from interrupt context
+	if (!p)
+		return -ENOMEM;
+
[..]
+int q6asm_read(struct audio_client *ac)
+{
+	struct asm_data_cmd_read_v2 *read;
+	struct audio_port_data *port;
+	struct audio_buffer *ab;
+	struct apr_pkt *pkt;
+	int pkt_size;
+	int rc = 0;
+	void *p;
+
+	if (!(ac->io_mode & ASM_SYNC_IO_MODE))
+		return 0;
+
+	pkt_size = APR_HDR_SIZE + sizeof(*read);
+	p = kzalloc(pkt_size, GFP_KERNEL);
same here. GFP_ATOMIC
+	if (!p)
+		return -ENOMEM;
[..]
+int q6asm_write_async(struct audio_client *ac, uint32_t len, uint32_t msw_ts,
+		       uint32_t lsw_ts, uint32_t flags)
+{
+	struct asm_data_cmd_write_v2 *write;
+	struct audio_port_data *port;
+	struct audio_buffer *ab;
+	struct apr_pkt *pkt;
+	int pkt_size;
+	int rc = 0;
+	void *p;
+
+	pkt_size = APR_HDR_SIZE + sizeof(*write);
+	p = kzalloc(pkt_size, GFP_KERNEL);
GFP_ATOMIC
+	if (!p)
+		return -ENOMEM;

Thanks,
Rohit

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