[PATCH 1/2] lsm: constify function parameters

Christian Göttsche cgoettsche at seltendoof.de
Mon Nov 25 10:59:24 UTC 2024


From: Christian Göttsche <cgzones at googlemail.com>

The functions print_ipv4_addr() and print_ipv6_addr() are called with
string literals and do not modify these parameters internally.

Reported by clang:

    security/lsm_audit.c:324:7: warning: passing 'const char[6]' to parameter of type 'char *' discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
      324 |                                                 "laddr", "lport");
          |                                                 ^~~~~~~
    security/lsm_audit.c:183:27: note: passing argument to parameter 'name1' here
      183 |                                    __be16 port, char *name1, char *name2)
          |                                                       ^

Signed-off-by: Christian Göttsche <cgzones at googlemail.com>
---
 security/lsm_audit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 849e832719e2..f1fe99f2221d 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -171,7 +171,7 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb,
 
 static inline void print_ipv6_addr(struct audit_buffer *ab,
 				   const struct in6_addr *addr, __be16 port,
-				   char *name1, char *name2)
+				   const char *name1, const char *name2)
 {
 	if (!ipv6_addr_any(addr))
 		audit_log_format(ab, " %s=%pI6c", name1, addr);
@@ -180,7 +180,7 @@ static inline void print_ipv6_addr(struct audit_buffer *ab,
 }
 
 static inline void print_ipv4_addr(struct audit_buffer *ab, __be32 addr,
-				   __be16 port, char *name1, char *name2)
+				   __be16 port, const char *name1, const char *name2)
 {
 	if (addr)
 		audit_log_format(ab, " %s=%pI4", name1, &addr);
-- 
2.45.2




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