[xen master] xen/include: address violations of MISRA C Rule 20.7

[patchbot@xxxxxxx]

commit e51649b4c21377dd8d1c837a74e5007b082a4375
Author:     Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
AuthorDate: Mon Mar 11 09:34:14 2024 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Mar 11 09:34:14 2024 +0100

    xen/include: 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/include/xen/bug.h  | 2 +-
 xen/include/xen/init.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/include/xen/bug.h b/xen/include/xen/bug.h
index 2c45c462fc..77fe1e1ba8 100644
--- a/xen/include/xen/bug.h
+++ b/xen/include/xen/bug.h
@@ -80,7 +80,7 @@ struct bug_frame {
     [bf_type]    "i" (type),                                                 \
     [bf_ptr]     "i" (ptr),                                                  \
     [bf_msg]     "i" (msg),                                                  \
-    [bf_line_lo] "i" ((line & ((1 << BUG_LINE_LO_WIDTH) - 1))                \
+    [bf_line_lo] "i" (((line) & ((1 << BUG_LINE_LO_WIDTH) - 1))              \
                       << BUG_DISP_WIDTH),                                    \
     [bf_line_hi] "i" (((line) >> BUG_LINE_LO_WIDTH) << BUG_DISP_WIDTH)
 
diff --git a/xen/include/xen/init.h b/xen/include/xen/init.h
index 1d7c0216bc..0a42238337 100644
--- a/xen/include/xen/init.h
+++ b/xen/include/xen/init.h
@@ -63,9 +63,9 @@ typedef int (*initcall_t)(void);
 typedef void (*exitcall_t)(void);
 
 #define presmp_initcall(fn) \
-    const static initcall_t __initcall_##fn __init_call("presmp") = fn
+    const static initcall_t __initcall_##fn __init_call("presmp") = (fn)
 #define __initcall(fn) \
-    const static initcall_t __initcall_##fn __init_call("1") = fn
+    const static initcall_t __initcall_##fn __init_call("1") = (fn)
 #define __exitcall(fn) \
     static exitcall_t __exitcall_##fn __exit_call = fn
 
--
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