From: Rosen Penev Date: Fri, 27 Mar 2026 03:01:24 +0000 (-0700) Subject: RDMA/core: Use kzalloc_flex for GID table X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cef2842c922cb762e9cca7bb26b9ef06ef090b52;p=thirdparty%2Flinux.git RDMA/core: Use kzalloc_flex for GID table Simplifies allocations by using a flexible array member in struct ib_gid_table. Add __counted_by to get extra runtime analysis. Signed-off-by: Rosen Penev Link: https://patch.msgid.link/20260327030124.8385-1-rosenp@gmail.com Signed-off-by: Leon Romanovsky --- diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index ee4a2bc68fb2..896486fa6185 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -116,9 +116,9 @@ struct ib_gid_table { /* rwlock protects data_vec[ix]->state and entry pointer. */ rwlock_t rwlock; - struct ib_gid_table_entry **data_vec; /* bit field, each bit indicates the index of default GID */ u32 default_gid_indices; + struct ib_gid_table_entry *data_vec[] __counted_by(sz); }; static void dispatch_gid_change_event(struct ib_device *ib_dev, u32 port) @@ -770,24 +770,16 @@ const struct ib_gid_attr *rdma_find_gid_by_filter( static struct ib_gid_table *alloc_gid_table(int sz) { - struct ib_gid_table *table = kzalloc_obj(*table); + struct ib_gid_table *table = kzalloc_flex(*table, data_vec, sz); if (!table) return NULL; - table->data_vec = kzalloc_objs(*table->data_vec, sz); - if (!table->data_vec) - goto err_free_table; + table->sz = sz; mutex_init(&table->lock); - - table->sz = sz; rwlock_init(&table->rwlock); return table; - -err_free_table: - kfree(table); - return NULL; } static void release_gid_table(struct ib_device *device,