From 12058013a7d15ec5a19648e0d50a2517614713ff Mon Sep 17 00:00:00 2001
From: Patrick Daly <quic_pdaly@quicinc.com>
Date: Wed, 8 Jun 2022 19:41:33 -0700
Subject: [PATCH] mem-buf: Add accessor for current_vmid

Allow other modules to access this variable.

Change-Id: I4eb92e6ea7bed0fb854a7aafe355f33a09120389
Signed-off-by: Patrick Daly <quic_pdaly@quicinc.com>
---
 drivers/soc/qcom/mem_buf/mem-buf-ids.c | 6 ++++++
 include/linux/mem-buf.h                | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/drivers/soc/qcom/mem_buf/mem-buf-ids.c b/drivers/soc/qcom/mem_buf/mem-buf-ids.c
index a81f7f7bf347..846c7fb038ff 100644
--- a/drivers/soc/qcom/mem_buf/mem-buf-ids.c
+++ b/drivers/soc/qcom/mem_buf/mem-buf-ids.c
@@ -82,6 +82,12 @@ struct mem_buf_vm *pdata_array[] = {
 	NULL,
 };
 
+int mem_buf_current_vmid(void)
+{
+	return current_vmid;
+}
+EXPORT_SYMBOL(mem_buf_current_vmid);
+
 /*
  * Opening this file acquires a refcount on vm->dev's kobject - see
  * chrdev_open(). So private data won't be free'd out from
diff --git a/include/linux/mem-buf.h b/include/linux/mem-buf.h
index 8c08679abd52..43823d1304ae 100644
--- a/include/linux/mem-buf.h
+++ b/include/linux/mem-buf.h
@@ -104,6 +104,7 @@ int mem_buf_reclaim(struct dma_buf *dmabuf);
 void *mem_buf_alloc(struct mem_buf_allocation_data *alloc_data);
 void mem_buf_free(void *membuf);
 struct gh_sgl_desc *mem_buf_get_sgl(void *membuf);
+int mem_buf_current_vmid(void);
 #else
 
 static inline void *mem_buf_alloc(struct mem_buf_allocation_data *alloc_data)
@@ -117,6 +118,10 @@ static inline struct gh_sgl_desc *mem_buf_get_sgl(void *membuf)
 {
 	return ERR_PTR(-EINVAL);
 }
+static inline int mem_buf_current_vmid(void)
+{
+	return ERR_PTR(-EINVAL);
+}
 #endif /* CONFIG_QCOM_MEM_BUF */