meta-arm/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.15/tc/0007-Revert-optee-use-driver-internal-tee_context-for-som.patch

From 96e0bd88e2fb4fcb1625240ef36bccf0383633f6 Mon Sep 17 00:00:00 2001
From: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Date: Tue, 17 May 2022 16:53:56 +0100
Subject: [PATCH 07/40] Revert "optee: use driver internal tee_context for some
 rpc"

This reverts commit 2922aff4339712ef004451715e94bdbd55fe38ed.
Upstream-Status: Pending [Not submitted to upstream yet]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
 drivers/tee/optee/core.c          | 8 --------
 drivers/tee/optee/optee_private.h | 2 --
 drivers/tee/optee/rpc.c           | 8 +++-----
 3 files changed, 3 insertions(+), 15 deletions(-)

diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c
index 50c0d839fe75..5363ebebfc35 100644
--- a/drivers/tee/optee/core.c
+++ b/drivers/tee/optee/core.c
@@ -588,7 +588,6 @@ static int optee_remove(struct platform_device *pdev)
 	/* Unregister OP-TEE specific client devices on TEE bus */
 	optee_unregister_devices();
 
-	teedev_close_context(optee->ctx);
 	/*
 	 * Ask OP-TEE to free all cached shared memory objects to decrease
 	 * reference counters and also avoid wild pointers in secure world
@@ -634,7 +633,6 @@ static int optee_probe(struct platform_device *pdev)
 	struct optee *optee = NULL;
 	void *memremaped_shm = NULL;
 	struct tee_device *teedev;
-	struct tee_context *ctx;
 	u32 sec_caps;
 	int rc;
 
@@ -721,12 +719,6 @@ static int optee_probe(struct platform_device *pdev)
 	optee_supp_init(&optee->supp);
 	optee->memremaped_shm = memremaped_shm;
 	optee->pool = pool;
-	ctx = teedev_open(optee->teedev);
-	if (IS_ERR(ctx)) {
-		rc = PTR_ERR(ctx);
-		goto err;
-	}
-	optee->ctx = ctx;
 
 	/*
 	 * Ensure that there are no pre-existing shm objects before enabling
diff --git a/drivers/tee/optee/optee_private.h b/drivers/tee/optee/optee_private.h
index ea09533e30cd..f6bb4a763ba9 100644
--- a/drivers/tee/optee/optee_private.h
+++ b/drivers/tee/optee/optee_private.h
@@ -70,7 +70,6 @@ struct optee_supp {
  * struct optee - main service struct
  * @supp_teedev:	supplicant device
  * @teedev:		client device
- * @ctx:		driver internal TEE context
  * @invoke_fn:		function to issue smc or hvc
  * @call_queue:		queue of threads waiting to call @invoke_fn
  * @wait_queue:		queue of threads from secure world waiting for a
@@ -88,7 +87,6 @@ struct optee {
 	struct tee_device *supp_teedev;
 	struct tee_device *teedev;
 	optee_invoke_fn *invoke_fn;
-	struct tee_context *ctx;
 	struct optee_call_queue call_queue;
 	struct optee_wait_queue wait_queue;
 	struct optee_supp supp;
diff --git a/drivers/tee/optee/rpc.c b/drivers/tee/optee/rpc.c
index 456833d82007..efbaff7ad7e5 100644
--- a/drivers/tee/optee/rpc.c
+++ b/drivers/tee/optee/rpc.c
@@ -285,7 +285,6 @@ static struct tee_shm *cmd_alloc_suppl(struct tee_context *ctx, size_t sz)
 }
 
 static void handle_rpc_func_cmd_shm_alloc(struct tee_context *ctx,
-					  struct optee *optee,
 					  struct optee_msg_arg *arg,
 					  struct optee_call_ctx *call_ctx)
 {
@@ -315,8 +314,7 @@ static void handle_rpc_func_cmd_shm_alloc(struct tee_context *ctx,
 		shm = cmd_alloc_suppl(ctx, sz);
 		break;
 	case OPTEE_RPC_SHM_TYPE_KERNEL:
-		shm = tee_shm_alloc(optee->ctx, sz,
-				    TEE_SHM_MAPPED | TEE_SHM_PRIV);
+		shm = tee_shm_alloc(ctx, sz, TEE_SHM_MAPPED | TEE_SHM_PRIV);
 		break;
 	default:
 		arg->ret = TEEC_ERROR_BAD_PARAMETERS;
@@ -473,7 +471,7 @@ static void handle_rpc_func_cmd(struct tee_context *ctx, struct optee *optee,
 		break;
 	case OPTEE_RPC_CMD_SHM_ALLOC:
 		free_pages_list(call_ctx);
-		handle_rpc_func_cmd_shm_alloc(ctx, optee, arg, call_ctx);
+		handle_rpc_func_cmd_shm_alloc(ctx, arg, call_ctx);
 		break;
 	case OPTEE_RPC_CMD_SHM_FREE:
 		handle_rpc_func_cmd_shm_free(ctx, arg);
@@ -504,7 +502,7 @@ void optee_handle_rpc(struct tee_context *ctx, struct optee_rpc_param *param,
 
 	switch (OPTEE_SMC_RETURN_GET_RPC_FUNC(param->a0)) {
 	case OPTEE_SMC_RPC_FUNC_ALLOC:
-		shm = tee_shm_alloc(optee->ctx, param->a1,
+		shm = tee_shm_alloc(ctx, param->a1,
 				    TEE_SHM_MAPPED | TEE_SHM_PRIV);
 		if (!IS_ERR(shm) && !tee_shm_get_pa(shm, 0, &pa)) {
 			reg_pair_from_64(&param->a1, &param->a2, pa);
-- 
2.34.1