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IB/hfi1: Use struct_size()

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Use struct_size() instead of hand-writing it, when allocating a structure
with a flex array.

This is less verbose, more robust and more informative.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/f4618a67d5ae0a30eb3f2b4558c8cc790feed79a.1690044376.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Christophe JAILLET 2023-07-22 18:47:24 +02:00 committed by Leon Romanovsky
parent 0b5eed0683
commit 24b1b5d85c
1 changed files with 3 additions and 6 deletions
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9
drivers/infiniband/hw/hfi1/pio.c
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@ -1893,9 +1893,7 @@ int pio_map_init(struct hfi1_devdata *dd, u8 port, u8 num_vls, u8 *vl_scontexts)
vl_scontexts[i] = sc_per_vl + (extra > 0 ? 1 : 0);
}
/* build new map */
newmap = kzalloc(sizeof(*newmap) +
roundup_pow_of_two(num_vls) *
sizeof(struct pio_map_elem *),
newmap = kzalloc(struct_size(newmap, map, roundup_pow_of_two(num_vls)),
GFP_KERNEL);
if (!newmap)
goto bail;
@ -1910,9 +1908,8 @@ int pio_map_init(struct hfi1_devdata *dd, u8 port, u8 num_vls, u8 *vl_scontexts)
int sz = roundup_pow_of_two(vl_scontexts[i]);
/* only allocate once */
newmap->map[i] = kzalloc(sizeof(*newmap->map[i]) +
sz * sizeof(struct
send_context *),
newmap->map[i] = kzalloc(struct_size(newmap->map[i],
ksc, sz),
GFP_KERNEL);
if (!newmap->map[i])
goto bail;