forked from Minki/linux
fe13192911
Both stmmac_open() and stmmac_resume() call stmmac_hw_setup(), and stmmac_hw_setup() call stmmac_init_ptp() unconditionally. However, only stmmac_release() calls stmmac_release_ptp(). Since stmmac_suspend() doesn't call stmmac_release_ptp(), stmmac_resume() also needn't call stmmac_init_ptp(). This patch also fix a "scheduling while atomic" problem when resume from suspend/hibernation. Because stmmac_init_ptp() will trigger scheduling while stmmac_resume() hold a spinlock. Callgraph of "scheduling while atomic": stmmac_resume() --> stmmac_hw_setup() --> stmmac_init_ptp() --> stmmac_ptp_register() --> ptp_clock_register() --> device_create() --> device_create_groups_vargs() --> device_add() --> devtmpfs_create_node() --> wait_for_common() --> schedule_timeout() --> __schedule() Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| chain_mode.c | ||
| common.h | ||
| descs_com.h | ||
| descs.h | ||
| dwmac100_core.c | ||
| dwmac100_dma.c | ||
| dwmac100.h | ||
| dwmac1000_core.c | ||
| dwmac1000_dma.c | ||
| dwmac1000.h | ||
| dwmac_dma.h | ||
| dwmac_lib.c | ||
| dwmac-meson.c | ||
| dwmac-socfpga.c | ||
| dwmac-sti.c | ||
| dwmac-sunxi.c | ||
| enh_desc.c | ||
| Kconfig | ||
| Makefile | ||
| mmc_core.c | ||
| mmc.h | ||
| norm_desc.c | ||
| ring_mode.c | ||
| stmmac_ethtool.c | ||
| stmmac_hwtstamp.c | ||
| stmmac_main.c | ||
| stmmac_mdio.c | ||
| stmmac_pci.c | ||
| stmmac_platform.c | ||
| stmmac_platform.h | ||
| stmmac_ptp.c | ||
| stmmac_ptp.h | ||
| stmmac.h | ||