[PATCH v8 05/13] lib/bootconfig: drop redundant memset of xbc_nodes

Josh Law
2026-03-18T15:59:30Z

memblock_alloc() already returns zeroed memory, so the explicit memset
in xbc_init() is redundant. Switch the userspace xbc_alloc_mem() from
malloc() to calloc() so both paths return zeroed memory, and remove
the separate memset call.

Signed-off-by: Josh Law <objecting@objecting.org>
---
lib/bootconfig.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/bootconfig.c b/lib/bootconfig.c
index 6b899e24189c..69486bd56fea 100644
--- a/lib/bootconfig.c
+++ b/lib/bootconfig.c
@@ -71,7 +71,7 @@ static inline void __init xbc_free_mem(void *addr, size_t size, bool early)

static inline void *xbc_alloc_mem(size_t size)
{
- return malloc(size);
+ return calloc(1, size);
}

static inline void xbc_free_mem(void *addr, size_t size, bool early)
@@ -982,7 +982,6 @@ int __init xbc_init(const char *data, size_t size, const char **emsg, int *epos)
_xbc_exit(true);
return -ENOMEM;
}
- memset(xbc_nodes, 0, sizeof(struct xbc_node) * XBC_NODE_MAX);

ret = xbc_parse_tree();
if (!ret)
--
2.34.1