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authorScott Wood <oss@buserror.net>2018-12-27 18:29:09 -0600
committerDavid S. Miller <davem@davemloft.net>2018-12-28 21:54:12 -0800
commit0d9c9a238faf925823bde866182c663b6d734f2e (patch)
treeaafd651ecb5df5037296c0593245a5164a826e06 /drivers/net/ethernet/freescale/fman
parent7418e6520f22a2e35815122fa5a53d5bbfa2c10f (diff)
fsl/fman: Use GFP_ATOMIC in {memac,tgec}_add_hash_mac_address()
These functions are called from atomic context: [ 9.150239] BUG: sleeping function called from invalid context at /home/scott/git/linux/mm/slab.h:421 [ 9.158159] in_atomic(): 1, irqs_disabled(): 0, pid: 4432, name: ip [ 9.163128] CPU: 8 PID: 4432 Comm: ip Not tainted 4.20.0-rc2-00169-g63d86876f324 #29 [ 9.163130] Call Trace: [ 9.170701] [c0000002e899a980] [c0000000009c1068] .dump_stack+0xa8/0xec (unreliable) [ 9.177140] [c0000002e899aa10] [c00000000007a7b4] .___might_sleep+0x138/0x164 [ 9.184440] [c0000002e899aa80] [c0000000001d5bac] .kmem_cache_alloc_trace+0x238/0x30c [ 9.191216] [c0000002e899ab40] [c00000000065ea1c] .memac_add_hash_mac_address+0x104/0x198 [ 9.199464] [c0000002e899abd0] [c00000000065a788] .set_multi+0x1c8/0x218 [ 9.206242] [c0000002e899ac80] [c0000000006615ec] .dpaa_set_rx_mode+0xdc/0x17c [ 9.213544] [c0000002e899ad00] [c00000000083d2b0] .__dev_set_rx_mode+0x80/0xd4 [ 9.219535] [c0000002e899ad90] [c00000000083d334] .dev_set_rx_mode+0x30/0x54 [ 9.225271] [c0000002e899ae10] [c00000000083d4a0] .__dev_open+0x148/0x1c8 [ 9.230751] [c0000002e899aeb0] [c00000000083d934] .__dev_change_flags+0x19c/0x1e0 [ 9.230755] [c0000002e899af60] [c00000000083d9a4] .dev_change_flags+0x2c/0x80 [ 9.242752] [c0000002e899aff0] [c0000000008554ec] .do_setlink+0x350/0xf08 [ 9.248228] [c0000002e899b170] [c000000000857ad0] .rtnl_newlink+0x588/0x7e0 [ 9.253965] [c0000002e899b740] [c000000000852424] .rtnetlink_rcv_msg+0x3e0/0x498 [ 9.261440] [c0000002e899b820] [c000000000884790] .netlink_rcv_skb+0x134/0x14c [ 9.267607] [c0000002e899b8e0] [c000000000851840] .rtnetlink_rcv+0x18/0x2c [ 9.274558] [c0000002e899b950] [c000000000883c8c] .netlink_unicast+0x214/0x318 [ 9.281163] [c0000002e899ba00] [c000000000884220] .netlink_sendmsg+0x348/0x444 [ 9.287076] [c0000002e899bae0] [c00000000080d13c] .sock_sendmsg+0x2c/0x54 [ 9.287080] [c0000002e899bb50] [c0000000008106c0] .___sys_sendmsg+0x2d0/0x2d8 [ 9.298375] [c0000002e899bd30] [c000000000811a80] .__sys_sendmsg+0x5c/0xb0 [ 9.303939] [c0000002e899be20] [c0000000000006b0] system_call+0x60/0x6c Signed-off-by: Scott Wood <oss@buserror.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/fman')
-rw-r--r--drivers/net/ethernet/freescale/fman/fman_memac.c2
-rw-r--r--drivers/net/ethernet/freescale/fman/fman_tgec.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
index bc6eb30aa20f..41c6fa200e74 100644
--- a/drivers/net/ethernet/freescale/fman/fman_memac.c
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -928,7 +928,7 @@ int memac_add_hash_mac_address(struct fman_mac *memac, enet_addr_t *eth_addr)
hash = get_mac_addr_hash_code(addr) & HASH_CTRL_ADDR_MASK;
/* Create element to be added to the driver hash table */
- hash_entry = kmalloc(sizeof(*hash_entry), GFP_KERNEL);
+ hash_entry = kmalloc(sizeof(*hash_entry), GFP_ATOMIC);
if (!hash_entry)
return -ENOMEM;
hash_entry->addr = addr;
diff --git a/drivers/net/ethernet/freescale/fman/fman_tgec.c b/drivers/net/ethernet/freescale/fman/fman_tgec.c
index 40705938eecc..f75b9c11b2d2 100644
--- a/drivers/net/ethernet/freescale/fman/fman_tgec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_tgec.c
@@ -553,7 +553,7 @@ int tgec_add_hash_mac_address(struct fman_mac *tgec, enet_addr_t *eth_addr)
hash = (crc >> TGEC_HASH_MCAST_SHIFT) & TGEC_HASH_ADR_MSK;
/* Create element to be added to the driver hash table */
- hash_entry = kmalloc(sizeof(*hash_entry), GFP_KERNEL);
+ hash_entry = kmalloc(sizeof(*hash_entry), GFP_ATOMIC);
if (!hash_entry)
return -ENOMEM;
hash_entry->addr = addr;