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[PATCH] xen/decompress: resolve MISRA R5.5 identifier/macro name conflicts
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Dmytro Prokopchuk1 <dmytro_prokopchuk1@xxxxxxxx>
- Date: Thu, 21 May 2026 20:18:37 +0000
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- Cc: Dmytro Prokopchuk1 <dmytro_prokopchuk1@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- Delivery-date: Thu, 21 May 2026 20:18:58 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHc6V8B/lHbglNK/EOVvgWJnFkvvQ==
- Thread-topic: [PATCH] xen/decompress: resolve MISRA R5.5 identifier/macro name conflicts
Convert 'malloc' and 'free' macros in 'decompress.h' from object-like
to function-like form.
The object-like macros '#define free xfree' perform unconditional text
replacement, causing conflicts with struct field 'free' in 'page_info'
unions. Function-like macros only match when followed by parentheses,
allowing 'free' to be used both as a macro and as a struct field without
conflicts.
Applying function-like form to both 'malloc' and 'free' ensures consistent
macro style.
Signed-off-by: Dmytro Prokopchuk <dmytro_prokopchuk1@xxxxxxxx>
---
xen/common/decompress.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/xen/common/decompress.h b/xen/common/decompress.h
index 034c833665..df9fb9234f 100644
--- a/xen/common/decompress.h
+++ b/xen/common/decompress.h
@@ -9,8 +9,8 @@
#include <xen/types.h>
#include <xen/xmalloc.h>
-#define malloc xmalloc_bytes
-#define free xfree
+#define malloc(a) xmalloc_bytes(a)
+#define free(a) xfree(a)
#define large_malloc xmalloc_bytes
#define large_free xfree
--
2.43.0
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