qemu/qht-Revert-some-constification-in-qht.c.patch

From: Bruce Rogers <brogers@suse.com>
Date: Thu, 13 Aug 2020 13:16:13 -0600
Subject: qht: Revert some constification in qht.c

This change partially addresses https://bugs.launchpad.net/qemu/+bug/1886155
where a pre-release gcc 11 warns about const qualifier abuse.

Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 include/qemu/qht.h |  4 ++--
 util/qht.c         | 12 ++++++------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/qemu/qht.h b/include/qemu/qht.h
index 2e2d6bca932c83bea993850b60f8..6484837487b012cbfc63b6c6e39e 100644
--- a/include/qemu/qht.h
+++ b/include/qemu/qht.h
@@ -104,7 +104,7 @@ bool qht_insert(struct qht *ht, void *p, uint32_t hash, void **existing);
  * Returns the corresponding pointer when a match is found.
  * Returns NULL otherwise.
  */
-void *qht_lookup_custom(const struct qht *ht, const void *userp, uint32_t hash,
+void *qht_lookup_custom(struct qht *ht, const void *userp, uint32_t hash,
                         qht_lookup_func_t func);
 
 /**
@@ -115,7 +115,7 @@ void *qht_lookup_custom(const struct qht *ht, const void *userp, uint32_t hash,
  *
  * Calls qht_lookup_custom() using @ht's default comparison function.
  */
-void *qht_lookup(const struct qht *ht, const void *userp, uint32_t hash);
+void *qht_lookup(struct qht *ht, const void *userp, uint32_t hash);
 
 /**
  * qht_remove - remove a pointer from the hash table
diff --git a/util/qht.c b/util/qht.c
index 0803c194d10b5cdafdc8b18ec083..24fdd3e0e23447b2ca67c0a1bc3a 100644
--- a/util/qht.c
+++ b/util/qht.c
@@ -486,10 +486,10 @@ bool qht_reset_size(struct qht *ht, size_t n_elems)
 }
 
 static inline
-void *qht_do_lookup(const struct qht_bucket *head, qht_lookup_func_t func,
+void *qht_do_lookup(struct qht_bucket *head, qht_lookup_func_t func,
                     const void *userp, uint32_t hash)
 {
-    const struct qht_bucket *b = head;
+    struct qht_bucket *b = head;
     int i;
 
     do {
@@ -513,7 +513,7 @@ void *qht_do_lookup(const struct qht_bucket *head, qht_lookup_func_t func,
 }
 
 static __attribute__((noinline))
-void *qht_lookup__slowpath(const struct qht_bucket *b, qht_lookup_func_t func,
+void *qht_lookup__slowpath(struct qht_bucket *b, qht_lookup_func_t func,
                            const void *userp, uint32_t hash)
 {
     unsigned int version;
@@ -526,10 +526,10 @@ void *qht_lookup__slowpath(const struct qht_bucket *b, qht_lookup_func_t func,
     return ret;
 }
 
-void *qht_lookup_custom(const struct qht *ht, const void *userp, uint32_t hash,
+void *qht_lookup_custom(struct qht *ht, const void *userp, uint32_t hash,
                         qht_lookup_func_t func)
 {
-    const struct qht_bucket *b;
+    struct qht_bucket *b;
     const struct qht_map *map;
     unsigned int version;
     void *ret;
@@ -549,7 +549,7 @@ void *qht_lookup_custom(const struct qht *ht, const void *userp, uint32_t hash,
     return qht_lookup__slowpath(b, func, userp, hash);
 }
 
-void *qht_lookup(const struct qht *ht, const void *userp, uint32_t hash)
+void *qht_lookup(struct qht *ht, const void *userp, uint32_t hash)
 {
     return qht_lookup_custom(ht, userp, hash, ht->cmp);
 }