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Date: Tue, 29 Sep 2020 22:25:09 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Peter Zijlstra <peterz@...radead.org>,
Paul McKenney <paulmck@...nel.org>,
Matthew Wilcox <willy@...radead.org>,
Christian Benvenuti <benve@...co.com>,
Govindarajulu Varadarajan <_govind@....com>,
Dave Miller <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
Jonathan Corbet <corbet@....net>,
Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
linux-doc@...r.kernel.org,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
Jay Cliburn <jcliburn@...il.com>,
Chris Snook <chris.snook@...il.com>,
Vishal Kulkarni <vishal@...lsio.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
intel-wired-lan@...ts.osuosl.org,
Shannon Nelson <snelson@...sando.io>,
Pensando Drivers <drivers@...sando.io>,
Andrew Lunn <andrew@...n.ch>,
Heiner Kallweit <hkallweit1@...il.com>,
Russell King <linux@...linux.org.uk>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
Edward Cree <ecree@...arflare.com>,
Martin Habets <mhabets@...arflare.com>,
Jon Mason <jdmason@...zu.us>, Daniel Drake <dsd@...too.org>,
Ulrich Kunitz <kune@...ne-taler.de>,
Kalle Valo <kvalo@...eaurora.org>,
linux-wireless@...r.kernel.org, linux-usb@...r.kernel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Arend van Spriel <arend.vanspriel@...adcom.com>,
Franky Lin <franky.lin@...adcom.com>,
Hante Meuleman <hante.meuleman@...adcom.com>,
Chi-Hsien Lin <chi-hsien.lin@...ress.com>,
Wright Feng <wright.feng@...ress.com>,
brcm80211-dev-list.pdl@...adcom.com,
brcm80211-dev-list@...ress.com,
Stanislav Yakovlev <stas.yakovlev@...il.com>,
Stanislaw Gruszka <stf_xl@...pl>,
Johannes Berg <johannes.berg@...el.com>,
Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
Luca Coelho <luciano.coelho@...el.com>,
Intel Linux Wireless <linuxwifi@...el.com>,
Jouni Malinen <j@...fi>,
Amitkumar Karwar <amitkarwar@...il.com>,
Ganapathi Bhat <ganapathi.bhat@....com>,
Xinming Hu <huxinming820@...il.com>,
libertas-dev@...ts.infradead.org,
Pascal Terjan <pterjan@...gle.com>,
Ping-Ke Shih <pkshih@...ltek.com>
Subject: [patch V2 00/36] net: in_interrupt() cleanup and fixes
Folks,
in the discussion about preempt count consistency accross kernel configurations:
https://lore.kernel.org/r/20200914204209.256266093@linutronix.de/
Linus clearly requested that code in drivers and libraries which changes
behaviour based on execution context should either be split up so that
e.g. task context invocations and BH invocations have different interfaces
or if that's not possible the context information has to be provided by the
caller which knows in which context it is executing.
This includes conditional locking, allocation mode (GFP_*) decisions and
avoidance of code paths which might sleep.
In the long run, usage of 'preemptible, in_*irq etc.' should be banned from
driver code completely.
This is the second version of the first batch of related changes. V1 can be
found here:
https://lore.kernel.org/r/20200927194846.045411263@linutronix.de
Changes vs. V1:
- Rebased to net-next
- Fixed the half done rename sillyness in the ENIC patch.
- Fixed the IONIC driver fallout.
- Picked up the SFC fix from Edward and adjusted the GFP_KERNEL change
accordingly.
- Addressed the review comments vs. BCRFMAC.
- Collected Reviewed/Acked-by tags as appropriate.
The pile is also available from:
git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git net/cleanup
Thanks,
tglx
---
Documentation/networking/caif/spi_porting.rst | 229 --
b/Documentation/networking/caif/index.rst | 1
b/drivers/net/caif/Kconfig | 19
b/drivers/net/caif/Makefile | 4
b/drivers/net/caif/caif_hsi.c | 19
b/drivers/net/ethernet/amd/sun3lance.c | 11
b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 1
b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c | 2
b/drivers/net/ethernet/atheros/atlx/atl2.c | 1
b/drivers/net/ethernet/chelsio/cxgb3/adapter.h | 1
b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c | 2
b/drivers/net/ethernet/chelsio/cxgb3/sge.c | 44
b/drivers/net/ethernet/chelsio/cxgb4/sge.c | 3
b/drivers/net/ethernet/cisco/enic/enic.h | 1
b/drivers/net/ethernet/cisco/enic/enic_api.c | 6
b/drivers/net/ethernet/cisco/enic/enic_main.c | 27
b/drivers/net/ethernet/freescale/fec_mpc52xx.c | 10
b/drivers/net/ethernet/intel/e100.c | 4
b/drivers/net/ethernet/intel/e1000/e1000_main.c | 1
b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 2
b/drivers/net/ethernet/intel/i40e/i40e_main.c | 4
b/drivers/net/ethernet/intel/ice/ice_main.c | 1
b/drivers/net/ethernet/intel/igb/igb_main.c | 1
b/drivers/net/ethernet/intel/igc/igc_main.c | 1
b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 1
b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2
b/drivers/net/ethernet/natsemi/sonic.c | 24
b/drivers/net/ethernet/natsemi/sonic.h | 2
b/drivers/net/ethernet/neterion/vxge/vxge-config.c | 9
b/drivers/net/ethernet/neterion/vxge/vxge-config.h | 7
b/drivers/net/ethernet/pensando/ionic/ionic_dev.c | 2
b/drivers/net/ethernet/pensando/ionic/ionic_lif.c | 64
b/drivers/net/ethernet/pensando/ionic/ionic_lif.h | 2
b/drivers/net/ethernet/pensando/ionic/ionic_main.c | 4
b/drivers/net/ethernet/sfc/ef10.c | 24
b/drivers/net/ethernet/sfc/efx_common.c | 2
b/drivers/net/ethernet/sfc/net_driver.h | 5
b/drivers/net/ethernet/sfc/nic_common.h | 7
b/drivers/net/ethernet/sun/sunbmac.c | 18
b/drivers/net/phy/mdio_bus.c | 15
b/drivers/net/usb/kaweth.c | 261 --
b/drivers/net/usb/net1080.c | 1
b/drivers/net/wan/lmc/lmc_debug.c | 18
b/drivers/net/wan/lmc/lmc_debug.h | 1
b/drivers/net/wan/lmc/lmc_main.c | 105 -
b/drivers/net/wan/lmc/lmc_media.c | 4
b/drivers/net/wan/lmc/lmc_proto.c | 16
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c | 4
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 4
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h | 3
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 26
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h | 2
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c | 8
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h | 7
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c | 10
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h | 2
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c | 7
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h | 6
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 8
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h | 2
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c | 2
b/drivers/net/wireless/intel/ipw2x00/ipw2100.c | 3
b/drivers/net/wireless/intel/ipw2x00/ipw2200.h | 6
b/drivers/net/wireless/intel/ipw2x00/libipw.h | 3
b/drivers/net/wireless/intel/iwlegacy/common.h | 4
b/drivers/net/wireless/intel/iwlwifi/iwl-debug.c | 5
b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h | 6
b/drivers/net/wireless/intersil/hostap/hostap_hw.c | 12
b/drivers/net/wireless/marvell/libertas/defs.h | 3
b/drivers/net/wireless/marvell/libertas/rx.c | 11
b/drivers/net/wireless/marvell/libertas_tf/deb_defs.h | 3
b/drivers/net/wireless/marvell/mwifiex/uap_txrx.c | 6
b/drivers/net/wireless/marvell/mwifiex/util.c | 6
b/drivers/net/wireless/realtek/rtlwifi/base.c | 47
b/drivers/net/wireless/realtek/rtlwifi/base.h | 3
b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c | 12
b/drivers/net/wireless/realtek/rtlwifi/core.c | 6
b/drivers/net/wireless/realtek/rtlwifi/debug.c | 20
b/drivers/net/wireless/realtek/rtlwifi/debug.h | 8
b/drivers/net/wireless/realtek/rtlwifi/pci.c | 4
b/drivers/net/wireless/realtek/rtlwifi/ps.c | 27
b/drivers/net/wireless/realtek/rtlwifi/ps.h | 10
b/drivers/net/wireless/realtek/rtlwifi/wifi.h | 3
b/drivers/net/wireless/zydas/zd1211rw/zd_usb.c | 1
b/include/linux/netdevice.h | 1
b/net/core/dev.c | 15
drivers/net/caif/caif_spi.c | 874 ----------
drivers/net/caif/caif_spi_slave.c | 254 --
include/net/caif/caif_spi.h | 155 -
89 files changed, 354 insertions(+), 2234 deletions(-)
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