[XEN PATCH] perfc: add pseudo-keyword fallthrough

From: Federico Serafini <federico.serafini@bugseng.com>
To: xen-devel@lists.xenproject.org
Cc: consulting@bugseng.com,
	Federico Serafini <federico.serafini@bugseng.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	George Dunlap <george.dunlap@citrix.com>,
	Jan Beulich <jbeulich@suse.com>, Julien Grall <julien@xen.org>,
	Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wl@xen.org>
Subject: [XEN PATCH] perfc: add pseudo-keyword fallthrough
Date: Thu, 14 Mar 2024 13:25:02 +0100	[thread overview]
Message-ID: <47eb1f8316672af172d9c34bfa6e7dda6bd7ce37.1710403601.git.federico.serafini@bugseng.com> (raw)

Add pseudo-keyword fallthrough to make explicit the intention of the
code and meet requirements to deviate MISRA C:2012 Rule 16.3
("An unconditional `break' statement shall terminate every
switch-clause").

No functional change.

Signed-off-by: Federico Serafini <federico.serafini@bugseng.com>
---
 xen/common/perfc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/common/perfc.c b/xen/common/perfc.c
index 7400667bf0..80480aa776 100644
--- a/xen/common/perfc.c
+++ b/xen/common/perfc.c
@@ -134,6 +134,7 @@ void cf_check perfc_reset(unsigned char key)
         case TYPE_SINGLE:
             for_each_online_cpu ( cpu )
                 per_cpu(perfcounters, cpu)[j] = 0;
+            fallthrough;
         case TYPE_S_SINGLE:
             ++j;
             break;
@@ -141,6 +142,7 @@ void cf_check perfc_reset(unsigned char key)
             for_each_online_cpu ( cpu )
                 memset(per_cpu(perfcounters, cpu) + j, 0,
                        perfc_info[i].nr_elements * sizeof(perfc_t));
+            fallthrough;
         case TYPE_S_ARRAY:
             j += perfc_info[i].nr_elements;
             break;
-- 
2.34.1


