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The origin ax25_dev_list implements its own single linked list, which is complicated and error-prone. For example, when deleting the node of ax25_dev_list in ax25_dev_device_down(), we have to operate on the head node and other nodes separately. This patch uses kernel universal linked list to replace original ax25_dev_list, which make the operation of ax25_dev_list easier. We should do "dev->ax25_ptr = ax25_dev;" and "dev->ax25_ptr = NULL;" while holding the spinlock, otherwise the ax25_dev_device_up() and ax25_dev_device_down() could race. Suggested-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Duoming Zhou <duoming@zju.edu.cn> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/85bba3af651ca0e1a519da8d0d715b949891171c.1715247018.git.duoming@zju.edu.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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.. | ||
af_ax25.c | ||
ax25_addr.c | ||
ax25_dev.c | ||
ax25_ds_in.c | ||
ax25_ds_subr.c | ||
ax25_ds_timer.c | ||
ax25_iface.c | ||
ax25_in.c | ||
ax25_ip.c | ||
ax25_out.c | ||
ax25_route.c | ||
ax25_std_in.c | ||
ax25_std_subr.c | ||
ax25_std_timer.c | ||
ax25_subr.c | ||
ax25_timer.c | ||
ax25_uid.c | ||
Kconfig | ||
Makefile | ||
sysctl_net_ax25.c |