[PATCH 2/2] soc: qcom: smem: ignore multi remote host partitions

[Albert Esteve]

From: Tony Truong <quic_truong@xxxxxxxxxxx>

SMEM now supports more than just 1-to-1 partitions. It is possible for
a partition to have multiple remote host and the logic to handle that
does not exist. For now, skip all partitions which has multiple remote
hosts.

Signed-off-by: Tony Truong <quic_truong@xxxxxxxxxxx>
Signed-off-by: Albert Esteve <aesteve@xxxxxxxxxx>
---
 drivers/soc/qcom/smem.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
index 194ffb2ac010f..8e079d2381535 100644
--- a/drivers/soc/qcom/smem.c
+++ b/drivers/soc/qcom/smem.c
@@ -86,6 +86,9 @@
 /* Processor/host identifier for the global partition */
 #define SMEM_GLOBAL_HOST	0xfffe
 
+/* Processor/host identifier for multi host partition */
+#define SMEM_MULTI_HOST		0xfffc
+
 /* Entry range check
  * ptr >= start : Checks if ptr is greater than the start of access region
  * ptr + size >= ptr: Check for integer overflow (On 32bit system where ptr
@@ -1081,6 +1084,9 @@ qcom_smem_enumerate_partitions(struct qcom_smem *smem, u16 local_host)
 		else
 			continue;
 
+		if (remote_host == SMEM_MULTI_HOST)
+			continue;
+
 		if (xa_load(&smem->partitions, remote_host)) {
 			dev_err(smem->dev, "duplicate host %u\n", remote_host);
 			return -EINVAL;

-- 
2.55.0