[xen staging] xen/arm: smmuv3: address violations of MISRA C Rule 20.7

[patchbot@xxxxxxx]

commit 771c4e39632d6d8a36668242bcc71f93cfc2842e
Author:     Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
AuthorDate: Mon Mar 4 10:46:25 2024 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Mar 4 10:46:25 2024 +0100

    xen/arm: smmuv3: address violations of MISRA C Rule 20.7
    
    MISRA C Rule 20.7 states: "Expressions resulting from the expansion
    of macro parameters shall be enclosed in parentheses". Therefore, some
    macro definitions should gain additional parentheses to ensure that all
    current and future users will be safe with respect to expansions that
    can possibly alter the semantics of the passed-in macro parameter.
    
    No functional change.
    
    Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/drivers/passthrough/arm/smmu-v3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/drivers/passthrough/arm/smmu-v3.c 
b/xen/drivers/passthrough/arm/smmu-v3.c
index c3ac6d17d1..b1c40c2c0a 100644
--- a/xen/drivers/passthrough/arm/smmu-v3.c
+++ b/xen/drivers/passthrough/arm/smmu-v3.c
@@ -111,7 +111,7 @@
 #define GFP_KERNEL             0
 
 /* Device logger functions */
-#define dev_name(dev)  dt_node_full_name(dev->of_node)
+#define dev_name(dev)  dt_node_full_name((dev)->of_node)
 #define dev_dbg(dev, fmt, ...)                 \
        printk(XENLOG_DEBUG "SMMUv3: %s: " fmt, dev_name(dev), ## __VA_ARGS__)
 #define dev_notice(dev, fmt, ...)              \
--
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