linux-kernel - [PATCH v2 6/6] firmware: qcom: scm: smc: Narrow 'mempool' variable scope

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Message-Id: <20241209-qcom-scm-missing-barriers-and-all-sort-of-srap-v2-6-9061013c8d92@linaro.org>
Date: Mon, 09 Dec 2024 15:27:59 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Mukesh Ojha <quic_mojha@...cinc.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, 
 Stephan Gerhold <stephan.gerhold@...aro.org>, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, 
 Kuldeep Singh <quic_kuldsing@...cinc.com>, 
 Elliot Berman <quic_eberman@...cinc.com>, 
 Andrew Halaney <ahalaney@...hat.com>, 
 Avaneesh Kumar Dwivedi <quic_akdwived@...cinc.com>, 
 Andy Gross <andy.gross@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 6/6] firmware: qcom: scm: smc: Narrow 'mempool' variable
 scope

Only part of the __scm_smc_call() function uses 'mempool' variable, so
narrow the scope to make it more readable.

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/firmware/qcom/qcom_scm-smc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/qcom/qcom_scm-smc.c b/drivers/firmware/qcom/qcom_scm-smc.c
index 3f10b23ec941b558e1d91761011776bb5c9d11b5..574930729ddd72d98013770da97cc018a52554ff 100644
--- a/drivers/firmware/qcom/qcom_scm-smc.c
+++ b/drivers/firmware/qcom/qcom_scm-smc.c
@@ -152,7 +152,6 @@ int __scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc,
 		   enum qcom_scm_convention qcom_convention,
 		   struct qcom_scm_res *res, bool atomic)
 {
-	struct qcom_tzmem_pool *mempool = qcom_scm_get_tzmem_pool();
 	int arglen = desc->arginfo & 0xf;
 	int i, ret;
 	void *args_virt __free(qcom_tzmem) = NULL;
@@ -173,6 +172,8 @@ int __scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc,
 		smc.args[i + SCM_SMC_FIRST_REG_IDX] = desc->args[i];
 
 	if (unlikely(arglen > SCM_SMC_N_REG_ARGS)) {
+		struct qcom_tzmem_pool *mempool = qcom_scm_get_tzmem_pool();
+
 		if (!mempool)
 			return -EINVAL;
 

-- 
2.43.0