iommu/msm: Make msm_iommu_lock static

Fix the following sparse warning:

drivers/iommu/msm_iommu.c:37:1: warning: symbol 'msm_iommu_lock' was not declared.

The msm_iommu_lock has only call site within msm_iommu.c
It should be static

Fixes: 0720d1f052dc ("msm: Add MSM IOMMU support")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Samuel Zou <zou_wei@huawei.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1589249839-105820-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 94a6df1bddd60b8b1607555ae4fa6e77a7ac7231..83414e226c9d838c1f8fb26b313c4bc1b5ccd98e 100644 (file)
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -34,7 +34,7 @@ __asm__ __volatile__ (                                                        \
 /* bitmap of the page sizes currently supported */
 #define MSM_IOMMU_PGSIZES      (SZ_4K | SZ_64K | SZ_1M | SZ_16M)
 
-DEFINE_SPINLOCK(msm_iommu_lock);
+static DEFINE_SPINLOCK(msm_iommu_lock);
 static LIST_HEAD(qcom_iommu_devices);
 static struct iommu_ops msm_iommu_ops;