From a760f8a67cb38d19fd52f2a28c65c967e469367e Mon Sep 17 00:00:00 2001
From: Qian Cai <cai@lca.pw>
Date: Thu, 11 Jul 2019 20:52:24 -0700
Subject: [PATCH] include/linux/dmar.h: replace single-char identifiers in
macros
There are a few macros in IOMMU have single-char identifiers make the code
hard to read and debug. Replace them with meaningful names.
Link: http://lkml.kernel.org/r/1559566783-13627-1-git-send-email-cai@lca.pw
Signed-off-by: Qian Cai <cai@lca.pw>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/dmar.h | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 28813c6f44b6a..a7cf3599d9a1c 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -92,12 +92,14 @@ static inline bool dmar_rcu_check(void)
#define dmar_rcu_dereference(p) rcu_dereference_check((p), dmar_rcu_check())
-#define for_each_dev_scope(a, c, p, d) \
- for ((p) = 0; ((d) = (p) < (c) ? dmar_rcu_dereference((a)[(p)].dev) : \
- NULL, (p) < (c)); (p)++)
-
-#define for_each_active_dev_scope(a, c, p, d) \
- for_each_dev_scope((a), (c), (p), (d)) if (!(d)) { continue; } else
+#define for_each_dev_scope(devs, cnt, i, tmp) \
+ for ((i) = 0; ((tmp) = (i) < (cnt) ? \
+ dmar_rcu_dereference((devs)[(i)].dev) : NULL, (i) < (cnt)); \
+ (i)++)
+
+#define for_each_active_dev_scope(devs, cnt, i, tmp) \
+ for_each_dev_scope((devs), (cnt), (i), (tmp)) \
+ if (!(tmp)) { continue; } else
extern int dmar_table_init(void);
extern int dmar_dev_scope_init(void);
--
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