[xen master] tools/xenstore: make hashtable key parameter const

[patchbot@xxxxxxx]

commit a687272aad0cf53ce43283b8ab58091dad473d9a
Author:     Juergen Gross <jgross@xxxxxxxx>
AuthorDate: Mon Aug 14 09:46:49 2023 +0200
Commit:     Julien Grall <jgrall@xxxxxxxxxx>
CommitDate: Fri Aug 18 13:44:48 2023 +0100

    tools/xenstore: make hashtable key parameter const
    
    The key is never modified by hashtable code, so it should be marked as
    const.
    
    Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 tools/xenstore/hashtable.c | 5 +++--
 tools/xenstore/hashtable.h | 4 ++--
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/tools/xenstore/hashtable.c b/tools/xenstore/hashtable.c
index 11f6bf8f15..9daddd9782 100644
--- a/tools/xenstore/hashtable.c
+++ b/tools/xenstore/hashtable.c
@@ -11,7 +11,8 @@
 
 struct entry
 {
-    void *k, *v;
+    const void *k;
+    void *v;
     unsigned int h;
     struct entry *next;
 };
@@ -140,7 +141,7 @@ static int hashtable_expand(struct hashtable *h)
     return 0;
 }
 
-int hashtable_add(struct hashtable *h, void *k, void *v)
+int hashtable_add(struct hashtable *h, const void *k, void *v)
 {
     /* This method allows duplicate keys - but they shouldn't be used */
     unsigned int index;
diff --git a/tools/xenstore/hashtable.h b/tools/xenstore/hashtable.h
index 5a2cc4a4be..792f6cda7b 100644
--- a/tools/xenstore/hashtable.h
+++ b/tools/xenstore/hashtable.h
@@ -48,8 +48,8 @@ create_hashtable(const void *ctx, const char *name,
  * If in doubt, remove before insert.
  */
 
-int 
-hashtable_add(struct hashtable *h, void *k, void *v);
+int
+hashtable_add(struct hashtable *h, const void *k, void *v);
 
 /*****************************************************************************
  * hashtable_search
--
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