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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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mptcp: Reorder fields in 'struct mptcp_pm_add_entry'

Group some variables based on their sizes to reduce hole and avoid padding.
On x86_64, this shrinks the size of 'struct mptcp_pm_add_entry'
from 136 to 128 bytes.

It saves a few bytes of memory and is more cache-line friendly.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/e47b71de54fd3e580544be56fc1bb2985c77b0f4.1687081558.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

authored by

Christophe JAILLET and committed by
Jakub Kicinski 92b08290 066768b7

+1 -1
+1 -1
net/mptcp/pm_netlink.c
··· 25 25 struct mptcp_pm_add_entry { 26 26 struct list_head list; 27 27 struct mptcp_addr_info addr; 28 + u8 retrans_times; 28 29 struct timer_list add_timer; 29 30 struct mptcp_sock *sock; 30 - u8 retrans_times; 31 31 }; 32 32 33 33 struct pm_nl_pernet {