EFI: 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@bugseng.com>
Acked-by: Jan Beulich <jbeulich@suse.com>

diff --git a/xen/include/efi/efierr.h b/xen/include/efi/efierr.h
index dfd3d3cf4867d71433209b7d83e6916077a8ca5e..cdca2104141d2ebbfd22db41bb8285f8408f426b 100644 (file)
--- a/xen/include/efi/efierr.h
+++ b/xen/include/efi/efierr.h
@@ -22,7 +22,7 @@ Revision History
 
 
 #define EFIWARN(a)                            (a)
-#define EFI_ERROR(a)              (((INTN) a) < 0)
+#define EFI_ERROR(a)              ((INTN)(a) < 0)
 
 
 #define EFI_SUCCESS                             0