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d8992b393f974b47c4a72b9bacdbfc4110e29eea
android_kernel_xiaomi_sm8450/drivers/net/ethernet/sfc
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Martin Habets d8992b393f sfc: Do not free an empty page_ring 
[ Upstream commit 458f5d92df4807e2a7c803ed928369129996bf96 ]

When the page_ring is not used page_ptr_mask is 0.
Do not dereference page_ring[0] in this case.

Fixes: 2768935a46 ("sfc: reuse pages to avoid DMA mapping/unmapping costs")
Reported-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-13 21:01:05 +02:00
..
falcon
sfc: The RX page_ring is optional
2022-01-11 15:24:59 +01:00
bitfield.h
sfc: extend bitfield macros up to POPULATE_DWORD_13
2020-06-29 17:37:48 -07:00
ef10_regs.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
ef10_sriov.c
sfc: error code if SRIOV cannot be disabled
2021-07-19 09:44:52 +02:00
ef10_sriov.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
ef10.c
sfc: ef10: fix TX queue lookup in TX event handling
2021-05-14 09:50:41 +02:00
ef100_ethtool.c
sfc: add ethtool ops and miscellaneous ndos to EF100
2020-09-07 14:46:13 -07:00
ef100_ethtool.h
sfc: skeleton EF100 PF driver
2020-07-27 12:26:55 -07:00
ef100_netdev.c
sfc: add ethtool ops and miscellaneous ndos to EF100
2020-09-07 14:46:13 -07:00
ef100_netdev.h
sfc: skeleton EF100 PF driver
2020-07-27 12:26:55 -07:00
ef100_nic.c
sfc_ef100: potential dereference of null pointer
2021-12-22 09:30:55 +01:00
ef100_nic.h
sfc_ef100: add nic-type for VFs, and bind to them
2020-08-03 18:22:55 -07:00
ef100_regs.h
sfc_ef100: add EF100 register definitions
2020-07-27 12:26:55 -07:00
ef100_rx.c
sfc: fix boolreturn.cocci warning and rename function
2020-08-24 18:14:23 -07:00
ef100_rx.h
sfc: check hash is valid before using it
2020-08-14 14:07:16 -07:00
ef100_tx.c
sfc: de-indirect TSO handling
2020-09-11 17:15:22 -07:00
ef100_tx.h
sfc: make ef100 xmit_more handling look more like ef10's
2020-09-05 12:21:39 -07:00
ef100.c
sfc: Fix error code in probe
2020-09-21 13:55:13 -07:00
ef100.h
sfc: skeleton EF100 PF driver
2020-07-27 12:26:55 -07:00
efx_channels.c
sfc: ensure correct number of XDP queues
2021-07-28 14:35:48 +02:00
efx_channels.h
sfc: cleanups around efx_alloc_channel
2020-09-11 14:55:14 -07:00
efx_common.c
sfc: move initialisation of efx->filter_sem to efx_init_struct()
2020-10-20 21:22:23 -07:00
efx_common.h
sfc: advertise encapsulated offloads on EF10
2020-09-11 17:15:22 -07:00
efx.c
sfc: advertise encapsulated offloads on EF10
2020-09-11 17:15:22 -07:00
efx.h
sfc: check hash is valid before using it
2020-08-14 14:07:16 -07:00
enum.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
ethtool_common.c
sfc: Fix reading non-legacy supported link modes
2021-11-06 14:10:08 +01:00
ethtool_common.h
sfc: skeleton EF100 PF driver
2020-07-27 12:26:55 -07:00
ethtool.c
sfc: return errors from efx_mcdi_set_id_led, and de-indirect
2020-08-31 12:28:50 -07:00
farch_regs.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
farch.c
sfc: farch: fix TX queue lookup in TX event handling
2021-05-11 14:47:36 +02:00
filter.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
io.h
sfc_ef100: register accesses on EF100
2020-07-27 12:26:55 -07:00
Kconfig
sfc: skeleton EF100 PF driver
2020-07-27 12:26:55 -07:00
Makefile
sfc: skeleton EF100 PF driver
2020-07-27 12:26:55 -07:00
mcdi_filters.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
mcdi_filters.h
sfc_ef100: helper function to set default RSS table of given size
2020-07-02 14:47:40 -07:00
mcdi_functions.c
sfc: de-indirect TSO handling
2020-09-11 17:15:22 -07:00
mcdi_functions.h
sfc: de-indirect TSO handling
2020-09-11 17:15:22 -07:00
mcdi_mon.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
mcdi_pcol.h
sfc: update MCDI protocol headers
2020-06-29 17:37:48 -07:00
mcdi_port_common.c
sfc: Export fibre-specific supported link modes
2021-11-18 14:03:41 +01:00
mcdi_port_common.h
sfc: coding style cleanups in mcdi_port_common.c
2020-09-08 20:14:33 -07:00
mcdi_port.c
sfc: remove phy_op indirection
2020-09-07 14:46:13 -07:00
mcdi_port.h
sfc: move NIC-specific mcdi_port declarations out of common header
2020-06-30 13:09:09 -07:00
mcdi.c
sfc: extend the locking on mcdi->seqno
2022-03-19 13:44:46 +01:00
mcdi.h
sfc: fix kdoc warning
2020-09-25 16:29:00 -07:00
mtd.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
net_driver.h
net: sfc: Replace in_interrupt() usage
2020-09-29 14:02:54 -07:00
nic_common.h
net: sfc: Replace in_interrupt() usage
2020-09-29 14:02:54 -07:00
nic.c
net:sfc: fix non-freed irq in legacy irq mode
2021-06-16 12:01:36 +02:00
nic.h
sfc: de-indirect TSO handling
2020-09-11 17:15:22 -07:00
ptp.c
sfc: Don't use netif_info before net_device setup
2021-11-18 14:03:41 +01:00
ptp.h
sfc: split up nic.h
2020-06-29 17:37:48 -07:00
rx_common.c
sfc: Do not free an empty page_ring
2022-04-13 21:01:05 +02:00
rx_common.h
sfc: commonise efx_sync_rx_buffer()
2020-06-30 13:09:09 -07:00
rx.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
selftest.c
sfc: define inner/outer csum offload TXQ types
2020-09-11 17:15:22 -07:00
selftest.h
sfc: decouple TXQ type from label
2020-09-11 17:15:22 -07:00
siena_sriov.c
sfc: Don't use netif_info before net_device setup
2021-11-18 14:03:41 +01:00
siena_sriov.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
siena.c
sfc: return errors from efx_mcdi_set_id_led, and de-indirect
2020-08-31 12:28:50 -07:00
sriov.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
sriov.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
tx_common.c
sfc: de-indirect TSO handling
2020-09-11 17:15:22 -07:00
tx_common.h
sfc: skeleton EF100 PF driver
2020-07-27 12:26:55 -07:00
tx_tso.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
tx.c
sfc: de-indirect TSO handling
2020-09-11 17:15:22 -07:00
tx.h
sfc: select inner-csum-offload TX queues for skbs that need it
2020-09-11 17:15:22 -07:00
vfdi.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
workarounds.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00