Duoming Zhou c0955bf957 ethernet: rocker: fix sleep in atomic context bug in neigh_timer_handler ... The function neigh_timer_handler() is a timer handler that runs in an atomic context. When used by rocker, neigh_timer_handler() calls "kzalloc(.., GFP_KERNEL)" that may sleep. As a result, the sleep in atomic context bug will happen. One of the processes is shown below: ofdpa_fib4_add() ... neigh_add_timer() (wait a timer) neigh_timer_handler() neigh_release() neigh_destroy() rocker_port_neigh_destroy() rocker_world_port_neigh_destroy() ofdpa_port_neigh_destroy() ofdpa_port_ipv4_neigh() kzalloc(sizeof(.., GFP_KERNEL) //may sleep This patch changes the gfp_t parameter of kzalloc() from GFP_KERNEL to GFP_ATOMIC in order to mitigate the bug. Fixes: 00fc0c51e3 ("rocker: Change world_ops API and implementation to be switchdev independant") Signed-off-by: Duoming Zhou <duoming@zju.edu.cn> Signed-off-by: David S. Miller <davem@davemloft.net>		2022-08-31 14:01:29 +01:00
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Kconfig	ethernet: select CONFIG_CRC32 as needed	2020-12-04 14:42:21 -08:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
rocker_hw.h	PCI: Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h	2020-07-09 17:00:47 -05:00
rocker_main.c	net: switch to netif_napi_add_tx()	2022-05-05 15:54:12 -07:00
rocker_ofdpa.c	ethernet: rocker: fix sleep in atomic context bug in neigh_timer_handler	2022-08-31 14:01:29 +01:00
rocker_tlv.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
rocker_tlv.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
rocker.h	net: bridge: switchdev: let drivers inform which bridge ports are offloaded	2021-07-22 00:26:23 -07:00