Messages in this thread Patch in this message | | | From | Christophe JAILLET <> | Subject | [PATCH v2 1/2] net: openvswitch: Use struct_size() | Date | Sat, 14 Oct 2023 08:34:52 +0200 |
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Use struct_size() instead of hand writing it. This is less verbose and more robust.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- v2: No change
v1: https://lore.kernel.org/all/8be59c9e06fca8eff2f264abb4c2f74db0b19a9e.1696156198.git.christophe.jaillet@wanadoo.fr/
This is IMHO more readable, even if not perfect.
However (untested): + new = kzalloc(size_add(struct_size(new, masks, size), size_mul(sizeof(u64), size)), GFP_KERNEL); looks completely unreadable to me. --- net/openvswitch/flow_table.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c index 4f3b1798e0b2..d108ae0bd0ee 100644 --- a/net/openvswitch/flow_table.c +++ b/net/openvswitch/flow_table.c @@ -220,16 +220,13 @@ static struct mask_array *tbl_mask_array_alloc(int size) struct mask_array *new; size = max(MASK_ARRAY_SIZE_MIN, size); - new = kzalloc(sizeof(struct mask_array) + - sizeof(struct sw_flow_mask *) * size + + new = kzalloc(struct_size(new, masks, size) + sizeof(u64) * size, GFP_KERNEL); if (!new) return NULL; new->masks_usage_zero_cntr = (u64 *)((u8 *)new + - sizeof(struct mask_array) + - sizeof(struct sw_flow_mask *) * - size); + struct_size(new, masks, size)); new->masks_usage_stats = __alloc_percpu(sizeof(struct mask_array_stats) + sizeof(u64) * size, -- 2.34.1
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