0dfc21c1a4
1588 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Jiapeng Chong
|
5cd1a85a6c |
of: overlay: Remove redundant assignment to ret
Variable ret is set to zero but this value is never read as it is overwritten with a new value later on, hence it is a redundant assignment and can be removed. Cleans up the following clang-analyzer warning: drivers/of/overlay.c:1197:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]. drivers/of/overlay.c:1026:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Link: https://lore.kernel.org/r/1619347258-55002-1-git-send-email-jiapeng.chong@linux.alibaba.com Signed-off-by: Rob Herring <robh@kernel.org> |
||
Linus Torvalds
|
9d31d23389 |
Networking changes for 5.13.
Core:
- bpf:
- allow bpf programs calling kernel functions (initially to
reuse TCP congestion control implementations)
- enable task local storage for tracing programs - remove the
need to store per-task state in hash maps, and allow tracing
programs access to task local storage previously added for
BPF_LSM
- add bpf_for_each_map_elem() helper, allowing programs to
walk all map elements in a more robust and easier to verify
fashion
- sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
redirection
- lpm: add support for batched ops in LPM trie
- add BTF_KIND_FLOAT support - mostly to allow use of BTF
on s390 which has floats in its headers files
- improve BPF syscall documentation and extend the use of kdoc
parsing scripts we already employ for bpf-helpers
- libbpf, bpftool: support static linking of BPF ELF files
- improve support for encapsulation of L2 packets
- xdp: restructure redirect actions to avoid a runtime lookup,
improving performance by 4-8% in microbenchmarks
- xsk: build skb by page (aka generic zerocopy xmit) - improve
performance of software AF_XDP path by 33% for devices
which don't need headers in the linear skb part (e.g. virtio)
- nexthop: resilient next-hop groups - improve path stability
on next-hops group changes (incl. offload for mlxsw)
- ipv6: segment routing: add support for IPv4 decapsulation
- icmp: add support for RFC 8335 extended PROBE messages
- inet: use bigger hash table for IP ID generation
- tcp: deal better with delayed TX completions - make sure we don't
give up on fast TCP retransmissions only because driver is
slow in reporting that it completed transmitting the original
- tcp: reorder tcp_congestion_ops for better cache locality
- mptcp:
- add sockopt support for common TCP options
- add support for common TCP msg flags
- include multiple address ids in RM_ADDR
- add reset option support for resetting one subflow
- udp: GRO L4 improvements - improve 'forward' / 'frag_list'
co-existence with UDP tunnel GRO, allowing the first to take
place correctly even for encapsulated UDP traffic
- micro-optimize dev_gro_receive() and flow dissection, avoid
retpoline overhead on VLAN and TEB GRO
- use less memory for sysctls, add a new sysctl type, to allow using
u8 instead of "int" and "long" and shrink networking sysctls
- veth: allow GRO without XDP - this allows aggregating UDP
packets before handing them off to routing, bridge, OvS, etc.
- allow specifing ifindex when device is moved to another namespace
- netfilter:
- nft_socket: add support for cgroupsv2
- nftables: add catch-all set element - special element used
to define a default action in case normal lookup missed
- use net_generic infra in many modules to avoid allocating
per-ns memory unnecessarily
- xps: improve the xps handling to avoid potential out-of-bound
accesses and use-after-free when XPS change race with other
re-configuration under traffic
- add a config knob to turn off per-cpu netdev refcnt to catch
underflows in testing
Device APIs:
- add WWAN subsystem to organize the WWAN interfaces better and
hopefully start driving towards more unified and vendor-
-independent APIs
- ethtool:
- add interface for reading IEEE MIB stats (incl. mlx5 and
bnxt support)
- allow network drivers to dump arbitrary SFP EEPROM data,
current offset+length API was a poor fit for modern SFP
which define EEPROM in terms of pages (incl. mlx5 support)
- act_police, flow_offload: add support for packet-per-second
policing (incl. offload for nfp)
- psample: add additional metadata attributes like transit delay
for packets sampled from switch HW (and corresponding egress
and policy-based sampling in the mlxsw driver)
- dsa: improve support for sandwiched LAGs with bridge and DSA
- netfilter:
- flowtable: use direct xmit in topologies with IP
forwarding, bridging, vlans etc.
- nftables: counter hardware offload support
- Bluetooth:
- improvements for firmware download w/ Intel devices
- add support for reading AOSP vendor capabilities
- add support for virtio transport driver
- mac80211:
- allow concurrent monitor iface and ethernet rx decap
- set priority and queue mapping for injected frames
- phy: add support for Clause-45 PHY Loopback
- pci/iov: add sysfs MSI-X vector assignment interface
to distribute MSI-X resources to VFs (incl. mlx5 support)
New hardware/drivers:
- dsa: mv88e6xxx: add support for Marvell mv88e6393x -
11-port Ethernet switch with 8x 1-Gigabit Ethernet
and 3x 10-Gigabit interfaces.
- dsa: support for legacy Broadcom tags used on BCM5325, BCM5365
and BCM63xx switches
- Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches
- ath11k: support for QCN9074 a 802.11ax device
- Bluetooth: Broadcom BCM4330 and BMC4334
- phy: Marvell 88X2222 transceiver support
- mdio: add BCM6368 MDIO mux bus controller
- r8152: support RTL8153 and RTL8156 (USB Ethernet) chips
- mana: driver for Microsoft Azure Network Adapter (MANA)
- Actions Semi Owl Ethernet MAC
- can: driver for ETAS ES58X CAN/USB interfaces
Pure driver changes:
- add XDP support to: enetc, igc, stmmac
- add AF_XDP support to: stmmac
- virtio:
- page_to_skb() use build_skb when there's sufficient tailroom
(21% improvement for 1000B UDP frames)
- support XDP even without dedicated Tx queues - share the Tx
queues with the stack when necessary
- mlx5:
- flow rules: add support for mirroring with conntrack,
matching on ICMP, GTP, flex filters and more
- support packet sampling with flow offloads
- persist uplink representor netdev across eswitch mode
changes
- allow coexistence of CQE compression and HW time-stamping
- add ethtool extended link error state reporting
- ice, iavf: support flow filters, UDP Segmentation Offload
- dpaa2-switch:
- move the driver out of staging
- add spanning tree (STP) support
- add rx copybreak support
- add tc flower hardware offload on ingress traffic
- ionic:
- implement Rx page reuse
- support HW PTP time-stamping
- octeon: support TC hardware offloads - flower matching on ingress
and egress ratelimitting.
- stmmac:
- add RX frame steering based on VLAN priority in tc flower
- support frame preemption (FPE)
- intel: add cross time-stamping freq difference adjustment
- ocelot:
- support forwarding of MRP frames in HW
- support multiple bridges
- support PTP Sync one-step timestamping
- dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
learning, flooding etc.
- ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
SC7280 SoCs)
- mt7601u: enable TDLS support
- mt76:
- add support for 802.3 rx frames (mt7915/mt7615)
- mt7915 flash pre-calibration support
- mt7921/mt7663 runtime power management fixes
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- bpf:
- allow bpf programs calling kernel functions (initially to
reuse TCP congestion control implementations)
- enable task local storage for tracing programs - remove the
need to store per-task state in hash maps, and allow tracing
programs access to task local storage previously added for
BPF_LSM
- add bpf_for_each_map_elem() helper, allowing programs to walk
all map elements in a more robust and easier to verify fashion
- sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
redirection
- lpm: add support for batched ops in LPM trie
- add BTF_KIND_FLOAT support - mostly to allow use of BTF on
s390 which has floats in its headers files
- improve BPF syscall documentation and extend the use of kdoc
parsing scripts we already employ for bpf-helpers
- libbpf, bpftool: support static linking of BPF ELF files
- improve support for encapsulation of L2 packets
- xdp: restructure redirect actions to avoid a runtime lookup,
improving performance by 4-8% in microbenchmarks
- xsk: build skb by page (aka generic zerocopy xmit) - improve
performance of software AF_XDP path by 33% for devices which don't
need headers in the linear skb part (e.g. virtio)
- nexthop: resilient next-hop groups - improve path stability on
next-hops group changes (incl. offload for mlxsw)
- ipv6: segment routing: add support for IPv4 decapsulation
- icmp: add support for RFC 8335 extended PROBE messages
- inet: use bigger hash table for IP ID generation
- tcp: deal better with delayed TX completions - make sure we don't
give up on fast TCP retransmissions only because driver is slow in
reporting that it completed transmitting the original
- tcp: reorder tcp_congestion_ops for better cache locality
- mptcp:
- add sockopt support for common TCP options
- add support for common TCP msg flags
- include multiple address ids in RM_ADDR
- add reset option support for resetting one subflow
- udp: GRO L4 improvements - improve 'forward' / 'frag_list'
co-existence with UDP tunnel GRO, allowing the first to take place
correctly even for encapsulated UDP traffic
- micro-optimize dev_gro_receive() and flow dissection, avoid
retpoline overhead on VLAN and TEB GRO
- use less memory for sysctls, add a new sysctl type, to allow using
u8 instead of "int" and "long" and shrink networking sysctls
- veth: allow GRO without XDP - this allows aggregating UDP packets
before handing them off to routing, bridge, OvS, etc.
- allow specifing ifindex when device is moved to another namespace
- netfilter:
- nft_socket: add support for cgroupsv2
- nftables: add catch-all set element - special element used to
define a default action in case normal lookup missed
- use net_generic infra in many modules to avoid allocating
per-ns memory unnecessarily
- xps: improve the xps handling to avoid potential out-of-bound
accesses and use-after-free when XPS change race with other
re-configuration under traffic
- add a config knob to turn off per-cpu netdev refcnt to catch
underflows in testing
Device APIs:
- add WWAN subsystem to organize the WWAN interfaces better and
hopefully start driving towards more unified and vendor-
independent APIs
- ethtool:
- add interface for reading IEEE MIB stats (incl. mlx5 and bnxt
support)
- allow network drivers to dump arbitrary SFP EEPROM data,
current offset+length API was a poor fit for modern SFP which
define EEPROM in terms of pages (incl. mlx5 support)
- act_police, flow_offload: add support for packet-per-second
policing (incl. offload for nfp)
- psample: add additional metadata attributes like transit delay for
packets sampled from switch HW (and corresponding egress and
policy-based sampling in the mlxsw driver)
- dsa: improve support for sandwiched LAGs with bridge and DSA
- netfilter:
- flowtable: use direct xmit in topologies with IP forwarding,
bridging, vlans etc.
- nftables: counter hardware offload support
- Bluetooth:
- improvements for firmware download w/ Intel devices
- add support for reading AOSP vendor capabilities
- add support for virtio transport driver
- mac80211:
- allow concurrent monitor iface and ethernet rx decap
- set priority and queue mapping for injected frames
- phy: add support for Clause-45 PHY Loopback
- pci/iov: add sysfs MSI-X vector assignment interface to distribute
MSI-X resources to VFs (incl. mlx5 support)
New hardware/drivers:
- dsa: mv88e6xxx: add support for Marvell mv88e6393x - 11-port
Ethernet switch with 8x 1-Gigabit Ethernet and 3x 10-Gigabit
interfaces.
- dsa: support for legacy Broadcom tags used on BCM5325, BCM5365 and
BCM63xx switches
- Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches
- ath11k: support for QCN9074 a 802.11ax device
- Bluetooth: Broadcom BCM4330 and BMC4334
- phy: Marvell 88X2222 transceiver support
- mdio: add BCM6368 MDIO mux bus controller
- r8152: support RTL8153 and RTL8156 (USB Ethernet) chips
- mana: driver for Microsoft Azure Network Adapter (MANA)
- Actions Semi Owl Ethernet MAC
- can: driver for ETAS ES58X CAN/USB interfaces
Pure driver changes:
- add XDP support to: enetc, igc, stmmac
- add AF_XDP support to: stmmac
- virtio:
- page_to_skb() use build_skb when there's sufficient tailroom
(21% improvement for 1000B UDP frames)
- support XDP even without dedicated Tx queues - share the Tx
queues with the stack when necessary
- mlx5:
- flow rules: add support for mirroring with conntrack, matching
on ICMP, GTP, flex filters and more
- support packet sampling with flow offloads
- persist uplink representor netdev across eswitch mode changes
- allow coexistence of CQE compression and HW time-stamping
- add ethtool extended link error state reporting
- ice, iavf: support flow filters, UDP Segmentation Offload
- dpaa2-switch:
- move the driver out of staging
- add spanning tree (STP) support
- add rx copybreak support
- add tc flower hardware offload on ingress traffic
- ionic:
- implement Rx page reuse
- support HW PTP time-stamping
- octeon: support TC hardware offloads - flower matching on ingress
and egress ratelimitting.
- stmmac:
- add RX frame steering based on VLAN priority in tc flower
- support frame preemption (FPE)
- intel: add cross time-stamping freq difference adjustment
- ocelot:
- support forwarding of MRP frames in HW
- support multiple bridges
- support PTP Sync one-step timestamping
- dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
learning, flooding etc.
- ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
SC7280 SoCs)
- mt7601u: enable TDLS support
- mt76:
- add support for 802.3 rx frames (mt7915/mt7615)
- mt7915 flash pre-calibration support
- mt7921/mt7663 runtime power management fixes"
* tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2451 commits)
net: selftest: fix build issue if INET is disabled
net: netrom: nr_in: Remove redundant assignment to ns
net: tun: Remove redundant assignment to ret
net: phy: marvell: add downshift support for M88E1240
net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
net/sched: act_ct: Remove redundant ct get and check
icmp: standardize naming of RFC 8335 PROBE constants
bpf, selftests: Update array map tests for per-cpu batched ops
bpf: Add batched ops support for percpu array
bpf: Implement formatted output helpers with bstr_printf
seq_file: Add a seq_bprintf function
sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues
net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
net: fix a concurrency bug in l2tp_tunnel_register()
net/smc: Remove redundant assignment to rc
mpls: Remove redundant assignment to err
llc2: Remove redundant assignment to rc
net/tls: Remove redundant initialization of record
rds: Remove redundant assignment to nr_sig
dt-bindings: net: mdio-gpio: add compatible for microchip,mdio-smi0
...
|
||
|
Linus Torvalds
|
0080665fbd |
Devicetree updates for v5.13:
- Refactoring powerpc and arm64 kexec DT handling to common code. This enables IMA on arm64. - Add kbuild support for applying DT overlays at build time. The first user are the DT unittests. - Fix kerneldoc formatting and W=1 warnings in drivers/of/ - Fix handling 64-bit flag on PCI resources - Bump dtschema version required to v2021.2.1 - Enable undocumented compatible checks for dtbs_check. This allows tracking of missing binding schemas. - DT docs improvements. Regroup the DT docs and add the example schema and DT kernel ABI docs to the doc build. - Convert Broadcom Bluetooth and video-mux bindings to schema - Add QCom sm8250 Venus video codec binding schema - Add vendor prefixes for AESOP, YIC System Co., Ltd, and Siliconfile Technologies Inc. - Cleanup of DT schema type references on common properties and standard unit properties -----BEGIN PGP SIGNATURE----- iQJEBAABCgAuFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAmCIYdgQHHJvYmhAa2Vy bmVsLm9yZwAKCRD6+121jbxhw/PKEACkOCWDnLSY9U7w1uGDHr6UgXIWOY9j8bYy 2pTvDrVa6KZphT6yGU/hxrOk8Mqh5AMd2vUhO2OCoyyl/priTv+Ktqo+bikvJZLa MQm3JnrLpPy/GetdmVD8wq1l+FoeOSTnRIJqRxInsd8UFVpZImtP22ELox6KgGiv keVHIrjsHU/HpafK3w8wHCLikCZk+1Gl6pL/QgFDv2FaaCTKW16Dt64dPqYm49Xk j7YMMQWl+3NJ9ywZV0+PMbl9udi3EjGm5Ap5VfKzpj53Nh07QObg/QtH/1sj0HPo apyW7jAyQFyLytbjxzFL/tljtOeW/5rZos1GWThZ326e+Y0mTKUTDZShvNplfjIf e26FvVi7gndWlRSr30Ia5gdNFAx72IkpJUAuypBXgb+qNPchBJjAXLn9tcIcg/k+ 2R6BIB7SkVLpgTnJ1Bq1+PRqkKM+ggACdJNJIUApj44xoiG01vtGDGRaFuIio+Ch HT4aBbic4kLvagm8VzuiIF/sL7af5pntzArcyOfQTaZ92DyGI2C0j90rK3yPRIYM u9qX/24t1SXiUji74QpoQFzt/+Egy5hYXMJOJJSywUjKf7DBhehqklTjiJRQHKm6 0DJ/n8q4lNru8F0Y4keKSuYTfHBstF7fS3UTH/rUmBAbfEwkvZe6B29KQbs+7aph GTw+jeoR5Q== =rF27 -----END PGP SIGNATURE----- Merge tag 'devicetree-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree updates from Rob Herring: - Refactor powerpc and arm64 kexec DT handling to common code. This enables IMA on arm64. - Add kbuild support for applying DT overlays at build time. The first user are the DT unittests. - Fix kerneldoc formatting and W=1 warnings in drivers/of/ - Fix handling 64-bit flag on PCI resources - Bump dtschema version required to v2021.2.1 - Enable undocumented compatible checks for dtbs_check. This allows tracking of missing binding schemas. - DT docs improvements. Regroup the DT docs and add the example schema and DT kernel ABI docs to the doc build. - Convert Broadcom Bluetooth and video-mux bindings to schema - Add QCom sm8250 Venus video codec binding schema - Add vendor prefixes for AESOP, YIC System Co., Ltd, and Siliconfile Technologies Inc. - Cleanup of DT schema type references on common properties and standard unit properties * tag 'devicetree-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (64 commits) powerpc: If kexec_build_elf_info() fails return immediately from elf64_load() powerpc: Free fdt on error in elf64_load() of: overlay: Fix kerneldoc warning in of_overlay_remove() of: linux/of.h: fix kernel-doc warnings of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses dt-bindings: bcm4329-fmac: add optional brcm,ccode-map docs: dt: update writing-schema.rst references dt-bindings: media: venus: Add sm8250 dt schema of: base: Fix spelling issue with function param 'prop' docs: dt: Add DT API documentation of: Add missing 'Return' section in kerneldoc comments of: Fix kerneldoc output formatting docs: dt: Group DT docs into relevant sub-sections docs: dt: Make 'Devicetree' wording more consistent docs: dt: writing-schema: Include the example schema in the doc build docs: dt: writing-schema: Remove spurious indentation dt-bindings: Fix reference in submitting-patches.rst to the DT ABI doc dt-bindings: ddr: Add optional manufacturer and revision ID to LPDDR3 dt-bindings: media: video-interfaces: Drop the example devicetree: bindings: clock: Minor typo fix in the file armada3700-tbg-clock.txt ... |
||
|
Linus Torvalds
|
0c85556318 |
ARM: platform support for Apple M1
The Apple M1 is the processor used it all current generation Apple
Macintosh computers. Support for this platform so far is rudimentary,
but it boots and can use framebuffer and serial console over a special
USB cable.
Support for several essential on-chip devices (USB, PCIe, IOMMU, NVMe)
is work in progress but was not ready in time.
A very detailed description of what works is in the merge commit
and on the AsahiLinux wiki.
Link: https://lore.kernel.org/linux-arm-kernel/bdb18e9f-fcd7-1e31-2224-19c0e5090706@marcan.st/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-apple-m1-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM Apple M1 platform support from Arnd Bergmann:
"The Apple M1 is the processor used it all current generation Apple
Macintosh computers. Support for this platform so far is rudimentary,
but it boots and can use framebuffer and serial console over a special
USB cable.
Support for several essential on-chip devices (USB, PCIe, IOMMU, NVMe)
is work in progress but was not ready in time.
A very detailed description of what works is in the commit message of
commit
|
||
Rob Herring
|
aed4349c5d |
of: overlay: Fix kerneldoc warning in of_overlay_remove()
'*ovcs_id' causes a warning because '*' is treated as bold markup: Documentation/devicetree/kernel-api:56: ../drivers/of/overlay.c:1184: WARNING: Inline emphasis start-string without end-string. Fix this by using the normal '@' markup for function parameters. That appears to be enough to keep the '*' from being interpretted as markup. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Frank Rowand <frowand.list@gmail.com> Link: https://lore.kernel.org/r/20210421154548.1192903-1-robh@kernel.org/ Signed-off-by: Rob Herring <robh@kernel.org> |
||
Leonardo Bras
|
9d57e61bf7 |
of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses
Many other resource flag parsers already add this flag when the input has bits 24 & 25 set, so update this one to do the same. Some devices (like virtio-net) have more than one memory resource (like MMIO32 and MMIO64) and without this flag it would be needed to verify the address range to know which one is which. Signed-off-by: Leonardo Bras <leobras.c@gmail.com> Link: https://lore.kernel.org/r/20210415180050.373791-1-leobras.c@gmail.com Signed-off-by: Rob Herring <robh@kernel.org> |
||
Greg Kroah-Hartman
|
a00fcbc115 |
Linux 5.12-rc7
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmBzdS0eHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGDdAIAIpKH/tAHhH7s7QH m5ewgE8foP7M5Ue9fp3+JmbtaYSzhCAMcKhqGtat/zk5PvA9AoYCDXrTetfYtBHh LUOmhL9hcKItNobfkYBok6BiFjGUEL3HMqz5w+MUsMwnXIc4RXqfJmsQ932z9Kxf yDwe6ehIzJVrQLI/C0mTamYRHu2aiZ1VWzhKuT493rLeg0R2odCCIClPN+/QvCwb 8/sk6l1c8eOUYYMUzKFZifaZGb12qDjRt4pZmk51aMTzg0WCpElJG+7Uqr4QQhZP p6xeNuUQq6WwxtlDkmo79Uzkrurb5tN2/hZ1RcJhs3EdHfpR0MjIyH3Znnb31gnu 39VjHhg= =4KP/ -----END PGP SIGNATURE----- Merge tag 'v5.12-rc7' into driver-core-next We need the driver core fix in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Michael Walle
|
f10843e04a |
of: net: fix of_get_mac_addr_nvmem() for non-platform devices
of_get_mac_address() already supports fetching the MAC address by an nvmem provider. But until now, it was just working for platform devices. Esp. it was not working for DSA ports and PCI devices. It gets more common that PCI devices have a device tree binding since SoCs contain integrated root complexes. Use the nvmem of_* binding to fetch the nvmem cells by a struct device_node. We still have to try to read the cell by device first because there might be a nvmem_cell_lookup associated with that device. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Michael Walle
|
83216e3988 |
of: net: pass the dst buffer to of_get_mac_address()
of_get_mac_address() returns a "const void*" pointer to a MAC address.
Lately, support to fetch the MAC address by an NVMEM provider was added.
But this will only work with platform devices. It will not work with
PCI devices (e.g. of an integrated root complex) and esp. not with DSA
ports.
There is an of_* variant of the nvmem binding which works without
devices. The returned data of a nvmem_cell_read() has to be freed after
use. On the other hand the return of_get_mac_address() points to some
static data without a lifetime. The trick for now, was to allocate a
device resource managed buffer which is then returned. This will only
work if we have an actual device.
Change it, so that the caller of of_get_mac_address() has to supply a
buffer where the MAC address is written to. Unfortunately, this will
touch all drivers which use the of_get_mac_address().
Usually the code looks like:
const char *addr;
addr = of_get_mac_address(np);
if (!IS_ERR(addr))
ether_addr_copy(ndev->dev_addr, addr);
This can then be simply rewritten as:
of_get_mac_address(np, ndev->dev_addr);
Sometimes is_valid_ether_addr() is used to test the MAC address.
of_get_mac_address() already makes sure, it just returns a valid MAC
address. Thus we can just test its return code. But we have to be
careful if there are still other sources for the MAC address before the
of_get_mac_address(). In this case we have to keep the
is_valid_ether_addr() call.
The following coccinelle patch was used to convert common cases to the
new style. Afterwards, I've manually gone over the drivers and fixed the
return code variable: either used a new one or if one was already
available use that. Mansour Moufid, thanks for that coccinelle patch!
<spml>
@a@
identifier x;
expression y, z;
@@
- x = of_get_mac_address(y);
+ x = of_get_mac_address(y, z);
<...
- ether_addr_copy(z, x);
...>
@@
identifier a.x;
@@
- if (<+... x ...+>) {}
@@
identifier a.x;
@@
if (<+... x ...+>) {
...
}
- else {}
@@
identifier a.x;
expression e;
@@
- if (<+... x ...+>@e)
- {}
- else
+ if (!(e))
{...}
@@
expression x, y, z;
@@
- x = of_get_mac_address(y, z);
+ of_get_mac_address(y, z);
... when != x
</spml>
All drivers, except drivers/net/ethernet/aeroflex/greth.c, were
compile-time tested.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
Jakub Kicinski
|
8859a44ea0 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts: MAINTAINERS - keep Chandrasekar drivers/net/ethernet/mellanox/mlx5/core/en_main.c - simple fix + trust the code re-added to param.c in -next is fine include/linux/bpf.h - trivial include/linux/ethtool.h - trivial, fix kdoc while at it include/linux/skmsg.h - move to relevant place in tcp.c, comment re-wrapped net/core/skmsg.c - add the sk = sk // sk = NULL around calls net/tipc/crypto.c - trivial Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
a2521822bd |
Devicetree fixes for v5.12, take 2:
- Fix fw_devlink failure with ".*,nr-gpios" properties - Doc link reference fixes from Mauro - Fixes for unaligned FDT handling found on OpenRisc. First, avoid crash with better error handling when unflattening an unaligned FDT. Second, fix memory allocations for FDTs to ensure alignment. -----BEGIN PGP SIGNATURE----- iQJEBAABCgAuFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAmBwq7UQHHJvYmhAa2Vy bmVsLm9yZwAKCRD6+121jbxhw1IMD/4mnveo0vrzSBnB8Gj9MQ1NIPumUIpc/VN6 NtfwZgemupEQM66TMQiHzeHSmQ7tY6SPRJnIlqZvWTvmeHYDOtrTtByR4BQHQb+E Foz6a+4aFQjo2Wc4LJG7Y+25sg+/outLuC8dBARpbi7uCEKlCOaVCpyMhR+61uvS JIqpNCbwKgos9aSTsNDpiturKlw9qMRq3jIITF/YS8R1QXuVgrDj6X7HDpm0iVxM IUZZz6Qe6lSsJodVNV+8sMIIF4I2pCfNlUo46W5q80VzerHTlp7aArFQdSpvCyHF StVS1a3ksYqycIsW90zgo+v3DrnKI6OSe9LqLsYOHwHCuu1G5t02RqoZ2/oYRZJX Ho1t+12AZpkcQ1DSm+nrawLGr7VJ9eFToGFhMeSIRiQebdKDWYbIJe21NSaEBYtO FTj5cigBopJOE7WrfIPuCZwfHokYqZeti/vaCYc5VkgVB25gVRsOowosE+Z7S2Rm xJvMDnKSCQprUbX6Q1w+9CZ79Ru/t/K/Xq0wakbhnFI+jiGhBbjfEyBfzCVUZcQq Jhl42KQPLCYeLpkuwFZBcRLZzOQU6xZHxWU8FfRulpMefIvDHFOvyNntElXrHSgg niMwCUY042eHXj/Ptg2cUYsYugiAik6+eEMtqX0tb61a1+n7UVztDGfjeWlbaIzP ol+Ba+6wCg== =7rNZ -----END PGP SIGNATURE----- Merge tag 'devicetree-fixes-for-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes from Rob Herring: - Fix fw_devlink failure with ".*,nr-gpios" properties - Doc link reference fixes from Mauro - Fixes for unaligned FDT handling found on OpenRisc. First, avoid crash with better error handling when unflattening an unaligned FDT. Second, fix memory allocations for FDTs to ensure alignment. * tag 'devicetree-fixes-for-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: property: fw_devlink: do not link ".*,nr-gpios" dt-bindings:iio:adc: update motorola,cpcap-adc.yaml reference dt-bindings: fix references for iio-bindings.txt dt-bindings: don't use ../dir for doc references of: unittest: overlay: ensure proper alignment of copied FDT of: properly check for error returned by fdt_get_name() |
||
Ilya Lipnitskiy
|
d473d32c2f |
of: property: fw_devlink: do not link ".*,nr-gpios"
[<vendor>,]nr-gpios property is used by some GPIO drivers[0] to indicate the number of GPIOs present on a system, not define a GPIO. nr-gpios is not configured by #gpio-cells and can't be parsed along with other "*-gpios" properties. nr-gpios without the "<vendor>," prefix is not allowed by the DT spec[1], so only add exception for the ",nr-gpios" suffix and let the error message continue being printed for non-compliant implementations. [0] nr-gpios is referenced in Documentation/devicetree/bindings/gpio: - gpio-adnp.txt - gpio-xgene-sb.txt - gpio-xlp.txt - snps,dw-apb-gpio.yaml [1] Link: |
||
Frank Rowand
|
48d499bd89 |
of: unittest: overlay: ensure proper alignment of copied FDT
The Devicetree standard specifies an 8 byte alignment of the FDT.
Code in libfdt expects this alignment for an FDT image in memory.
kmemdup() returns 4 byte alignment on openrisc. Replace kmemdup()
with kmalloc(), align pointer, memcpy() to get proper alignment.
The 4 byte alignment exposed a related bug which triggered a crash
on openrisc with:
commit
|
||
Hector Martin
|
89897f739d |
of/address: Add infrastructure to declare MMIO as non-posted
This implements the 'nonposted-mmio' boolean property. Placing this property in a bus marks all direct child devices as requiring non-posted MMIO mappings. If no such property is found, the default is posted MMIO. of_mmio_is_nonposted() performs this check to determine if a given device has requested non-posted MMIO. of_address_to_resource() uses this to set the IORESOURCE_MEM_NONPOSTED flag on resources that require non-posted MMIO. of_iomap() and of_io_request_and_map() then use this flag to pick the correct ioremap() variant. This mechanism is currently restricted to builds that support Apple ARM platforms, as an optimization. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hector Martin <marcan@marcan.st> |
||
|
Frank Rowand
|
649cab56de |
of: properly check for error returned by fdt_get_name()
fdt_get_name() returns error values via a parameter pointer instead of in function return. Fix check for this error value in populate_node() and callers of populate_node(). Chasing up the caller tree showed callers of various functions failing to initialize the value of pointer parameters that can return error values. Initialize those values to NULL. The bug was introduced by commit |
||
Saravana Kannan
|
f7514a6630 |
of: property: fw_devlink: Add support for remote-endpoint
remote-endpoint property seems to always come in pairs where two devices
point to each other. So, we can't really tell from DT if there is a
functional probe order dependency between these two devices.
However, there can be other dependencies between two devices that point
to each other with remote-endpoint. This non-remote-endpoint dependency
combined with one of the remote-endpoint dependency can lead to a cyclic
dependency[1].
To avoid this cyclic dependency from incorrectly blocking probes,
fw_devlink needs to be made aware of remote-endpoint dependencies even
though remote-endpoint dependencies by themselves won't affect probe
ordering (because fw_devlink will see the cyclic dependency between
remote-endpoint devices and ignore the dependencies that cause the
cycle).
Also, if a device ever needs to know if a non-probe-blocking
remote-endpoint has finished probing, it can now use the sync_state() to
figure it out.
[1] - https://lore.kernel.org/lkml/CAGETcx9Snf23wrXqjDhJiTok9M3GcoVYDSyNYSMj9QnSRrA=cA@mail.gmail.com/#t
Fixes:
|
||
Lee Jones
|
31e46db02a |
of: base: Fix spelling issue with function param 'prop'
Fixes the following W=1 kernel build warning(s): drivers/of/base.c:1781: warning: Function parameter or member 'prop' not described in '__of_add_property' drivers/of/base.c:1781: warning: Excess function parameter 'prob' description in '__of_add_property' drivers/of/base.c:1804: warning: Function parameter or member 'prop' not described in 'of_add_property' drivers/of/base.c:1804: warning: Excess function parameter 'prob' description in 'of_add_property' drivers/of/base.c:1855: warning: Function parameter or member 'prop' not described in 'of_remove_property' drivers/of/base.c:1855: warning: Excess function parameter 'prob' description in 'of_remove_property' Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210329152435.900225-1-lee.jones@linaro.org Signed-off-by: Rob Herring <robh@kernel.org> |
||
|
Rob Herring
|
8c8239c2c1 |
of: Add missing 'Return' section in kerneldoc comments
Many of the DT kerneldoc comments are lacking a 'Return' section. Let's add the section in cases we have a description of return values. There's still some cases where the return values are not documented. Cc: Frank Rowand <frowand.list@gmail.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/20210325164713.1296407-8-robh@kernel.org |
||
|
Rob Herring
|
62f026f082 |
of: Fix kerneldoc output formatting
The indentation of the kerneldoc comments affects the output formatting. Leading tabs in particular don't work, sections need to be indented under the section header, and several code blocks are reformatted. Cc: Frank Rowand <frowand.list@gmail.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/20210326192606.3702739-1-robh@kernel.org |
||
kernel test robot
|
c4d74f0f97 |
of: overlay: fix for_each_child.cocci warnings
Function "for_each_child_of_node" should have of_node_put() before goto.
Generated by: scripts/coccinelle/iterators/for_each_child.cocci
Fixes:
|
||
|
Lee Jones
|
ad1ce1ab06 |
of: of_reserved_mem: Demote kernel-doc abuses
Fixes the following W=1 kernel build warning(s): drivers/of/of_reserved_mem.c:53: warning: Function parameter or member 'node' not described in 'fdt_reserved_mem_save_node' drivers/of/of_reserved_mem.c:53: warning: Function parameter or member 'uname' not described in 'fdt_reserved_mem_save_node' drivers/of/of_reserved_mem.c:53: warning: Function parameter or member 'base' not described in 'fdt_reserved_mem_save_node' drivers/of/of_reserved_mem.c:53: warning: Function parameter or member 'size' not described in 'fdt_reserved_mem_save_node' drivers/of/of_reserved_mem.c:76: warning: Function parameter or member 'node' not described in '__reserved_mem_alloc_size' drivers/of/of_reserved_mem.c:76: warning: Function parameter or member 'uname' not described in '__reserved_mem_alloc_size' drivers/of/of_reserved_mem.c:76: warning: Function parameter or member 'res_base' not described in '__reserved_mem_alloc_size' drivers/of/of_reserved_mem.c:76: warning: Function parameter or member 'res_size' not described in '__reserved_mem_alloc_size' drivers/of/of_reserved_mem.c:171: warning: Function parameter or member 'rmem' not described in '__reserved_mem_init_node' Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Josh Cartwright <joshc@codeaurora.org> Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-11-lee.jones@linaro.org |
||
|
Lee Jones
|
f957d5b78a |
of: overlay: Fix function name disparity
Fixes the following W=1 kernel build warning(s): drivers/of/overlay.c:147: warning: expecting prototype for of_overlay_notifier_register(). Prototype was for of_overlay_notifier_unregister() instead Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-10-lee.jones@linaro.org |
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|
Lee Jones
|
1a7d706d8e |
of: of_net: Provide function name and param description
Fixes the following W=1 kernel build warning(s): drivers/of/of_net.c:104: warning: Function parameter or member 'np' not described in 'of_get_mac_address' drivers/of/of_net.c:104: warning: expecting prototype for mac(). Prototype was for of_get_mac_address() instead Cc: Andrew Lunn <andrew@lunn.ch> Cc: Heiner Kallweit <hkallweit1@gmail.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: netdev@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-9-lee.jones@linaro.org |
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|
Lee Jones
|
a300dc865b |
of: fdt: Demote kernel-doc abuses and fix function naming
Fixes the following W=1 kernel build warning(s): drivers/of/fdt.c:478: warning: Function parameter or member 'node' not described in '__reserved_mem_reserve_reg' drivers/of/fdt.c:478: warning: Function parameter or member 'uname' not described in '__reserved_mem_reserve_reg' drivers/of/fdt.c:525: warning: Function parameter or member 'node' not described in '__reserved_mem_check_root' drivers/of/fdt.c:547: warning: Function parameter or member 'node' not described in '__fdt_scan_reserved_mem' drivers/of/fdt.c:547: warning: Function parameter or member 'uname' not described in '__fdt_scan_reserved_mem' drivers/of/fdt.c:547: warning: Function parameter or member 'depth' not described in '__fdt_scan_reserved_mem' drivers/of/fdt.c:547: warning: Function parameter or member 'data' not described in '__fdt_scan_reserved_mem' drivers/of/fdt.c:547: warning: expecting prototype for fdt_scan_reserved_mem(). Prototype was for __fdt_scan_reserved_mem() instead drivers/of/fdt.c:663: warning: Function parameter or member 'parent' not described in 'of_scan_flat_dt_subnodes' drivers/of/fdt.c:708: warning: Function parameter or member 'node' not described in 'of_get_flat_dt_prop' drivers/of/fdt.c:708: warning: Function parameter or member 'name' not described in 'of_get_flat_dt_prop' drivers/of/fdt.c:708: warning: Function parameter or member 'size' not described in 'of_get_flat_dt_prop' drivers/of/fdt.c:758: warning: Function parameter or member 'node' not described in 'of_flat_dt_match' drivers/of/fdt.c:758: warning: Function parameter or member 'compat' not described in 'of_flat_dt_match' drivers/of/fdt.c:778: warning: Function parameter or member 'node' not described in 'of_get_flat_dt_phandle' drivers/of/fdt.c:778: warning: expecting prototype for of_get_flat_dt_prop(). Prototype was for of_get_flat_dt_phandle() instead drivers/of/fdt.c:955: warning: Function parameter or member 'node' not described in 'early_init_dt_scan_root' drivers/of/fdt.c:955: warning: Function parameter or member 'uname' not described in 'early_init_dt_scan_root' drivers/of/fdt.c:955: warning: Function parameter or member 'depth' not described in 'early_init_dt_scan_root' drivers/of/fdt.c:955: warning: Function parameter or member 'data' not described in 'early_init_dt_scan_root' drivers/of/fdt.c:991: warning: Function parameter or member 'node' not described in 'early_init_dt_scan_memory' drivers/of/fdt.c:991: warning: Function parameter or member 'uname' not described in 'early_init_dt_scan_memory' drivers/of/fdt.c:991: warning: Function parameter or member 'depth' not described in 'early_init_dt_scan_memory' drivers/of/fdt.c:991: warning: Function parameter or member 'data' not described in 'early_init_dt_scan_memory' Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: benh@kernel.crashing.org Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-8-lee.jones@linaro.org |
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|
Lee Jones
|
45f2933b81 |
of: address: Provide descriptions for 'of_address_to_resource's params
Fixes the following W=1 kernel build warning(s): drivers/of/address.c:868: warning: Function parameter or member 'dev' not described in 'of_address_to_resource' drivers/of/address.c:868: warning: Function parameter or member 'index' not described in 'of_address_to_resource' drivers/of/address.c:868: warning: Function parameter or member 'r' not described in 'of_address_to_resource' Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-7-lee.jones@linaro.org |
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|
Lee Jones
|
3915fed923 |
of: property: Provide missing member description and remove excess param
Fixes the following W=1 kernel build warning(s): drivers/of/property.c:1239: warning: Function parameter or member 'optional' not described in 'supplier_bindings' drivers/of/property.c:1366: warning: Excess function parameter 'dev' description in 'of_link_property' Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-6-lee.jones@linaro.org |
||
|
Lee Jones
|
3637d49e11 |
of: base: Fix some formatting issues and provide missing descriptions
Fixes the following W=1 kernel build warning(s): drivers/of/base.c:315: warning: Function parameter or member 'cpun' not described in '__of_find_n_match_cpu_property' drivers/of/base.c:315: warning: Function parameter or member 'prop_name' not described in '__of_find_n_match_cpu_property' drivers/of/base.c:315: warning: Function parameter or member 'cpu' not described in '__of_find_n_match_cpu_property' drivers/of/base.c:315: warning: Function parameter or member 'thread' not described in '__of_find_n_match_cpu_property' drivers/of/base.c:315: warning: expecting prototype for property holds the physical id of the(). Prototype was for __of_find_n_match_cpu_property() instead drivers/of/base.c:1139: warning: Function parameter or member 'match' not described in 'of_find_matching_node_and_match' drivers/of/base.c:1779: warning: Function parameter or member 'np' not described in '__of_add_property' drivers/of/base.c:1779: warning: Function parameter or member 'prop' not described in '__of_add_property' drivers/of/base.c:1800: warning: Function parameter or member 'np' not described in 'of_add_property' drivers/of/base.c:1800: warning: Function parameter or member 'prop' not described in 'of_add_property' drivers/of/base.c:1849: warning: Function parameter or member 'np' not described in 'of_remove_property' drivers/of/base.c:1849: warning: Function parameter or member 'prop' not described in 'of_remove_property' drivers/of/base.c:2137: warning: Function parameter or member 'dn' not described in 'of_console_check' drivers/of/base.c:2137: warning: Function parameter or member 'name' not described in 'of_console_check' drivers/of/base.c:2137: warning: Function parameter or member 'index' not described in 'of_console_check' Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-5-lee.jones@linaro.org |
||
|
Lee Jones
|
f3896a7eb7 |
of: platform: Demote kernel-doc abuse
Fixes the following W=1 kernel build warning(s): drivers/of/platform.c:298: warning: Function parameter or member 'lookup' not described in 'of_dev_lookup' drivers/of/platform.c:298: warning: Function parameter or member 'np' not described in 'of_dev_lookup' Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Kees Cook <keescook@chromium.org> Cc: Anton Vorontsov <anton@enomsg.org> Cc: Colin Cross <ccross@android.com> Cc: Tony Luck <tony.luck@intel.com> Cc: benh@kernel.crashing.org Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-4-lee.jones@linaro.org |
||
|
Lee Jones
|
3cb025d935 |
of: dynamic: Fix incorrect parameter name and provide missing descriptions
Fixes the following W=1 kernel build warning(s): drivers/of/dynamic.c:234: warning: Function parameter or member 'np' not described in 'of_attach_node' drivers/of/dynamic.c:286: warning: Function parameter or member 'np' not described in 'of_detach_node' drivers/of/dynamic.c:326: warning: Function parameter or member 'kobj' not described in 'of_node_release' drivers/of/dynamic.c:326: warning: Excess function parameter 'kref' description in 'of_node_release' Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-3-lee.jones@linaro.org |
||
|
Lee Jones
|
cb61e9dbee |
of: device: Fix function name in header and provide missing descriptions
Fixes the following W=1 kernel build warning(s): drivers/of/device.c:72: warning: expecting prototype for of_dma_configure(). Prototype was for of_dma_configure_id() instead drivers/of/device.c:263: warning: Function parameter or member 'dev' not described in 'of_device_modalias' drivers/of/device.c:263: warning: Function parameter or member 'str' not described in 'of_device_modalias' drivers/of/device.c:263: warning: Function parameter or member 'len' not described in 'of_device_modalias' drivers/of/device.c:280: warning: Function parameter or member 'dev' not described in 'of_device_uevent' drivers/of/device.c:280: warning: Function parameter or member 'env' not described in 'of_device_uevent' Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210318104036.3175910-2-lee.jones@linaro.org |
||
Viresh Kumar
|
3b2dccc674 |
of: unittest: Statically apply overlays using fdtoverlay
Now that fdtoverlay is part of the kernel build, start using it to test the unitest overlays we have by applying them statically. Create two new base files static_base_1.dts and static_base_2.dts which includes other .dtsi files. Some unittest overlays deliberately contain errors that unittest checks for. These overlays will cause fdtoverlay to fail, and are thus not included for static builds. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Frank Rowand <frank.rowand@sony.com> Tested-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/da6b4e6429aae2e7832a8be2ba2da473d449895b.1615354376.git.viresh.kumar@linaro.org |
||
|
Viresh Kumar
|
d92e244322 |
of: unittest: Create overlay_common.dtsi and testcases_common.dtsi
In order to build-test the same unit-test files using fdtoverlay tool, move the device nodes from the existing overlay_base.dts and testcases_common.dts files to .dtsi counterparts. The .dts files now include the new .dtsi files, resulting in exactly the same behavior as earlier. The .dtsi files can now be reused for compile time tests using fdtoverlay (will be done by a later commit). This is required because the base files passed to fdtoverlay tool shouldn't be overlays themselves (i.e. shouldn't have the /plugin/; tag). Note that this commit also moves "testcase-device2" node to testcases.dts from tests-interrupts.dtsi, as this node has a deliberate error in it and is only relevant for runtime testing done with unittest.c. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Frank Rowand <frank.rowand@sony.com> Tested-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/c3354a042ba34a03fd563061cbaa7fc96cb2d71a.1615354376.git.viresh.kumar@linaro.org |
||
|
Lee Jones
|
21e0b8fc16 |
of: of_net: Provide function name and param description
Fixes the following W=1 kernel build warning(s): drivers/of/of_net.c:104: warning: Function parameter or member 'np' not described in 'of_get_mac_address' drivers/of/of_net.c:104: warning: expecting prototype for mac(). Prototype was for of_get_mac_address() instead Cc: Andrew Lunn <andrew@lunn.ch> Cc: Heiner Kallweit <hkallweit1@gmail.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: netdev@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
Yang Li
|
065cac6c68 |
of: property: Remove unneeded return variable
This patch removes unneeded return variables, using only '0' instead. It fixes the following warning detected by coccinelle: ./drivers/of/property.c:1371:5-8: Unneeded variable: "ret". Return "0" on line 1388 Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/1614676598-105267-1-git-send-email-yang.lee@linux.alibaba.com Signed-off-by: Rob Herring <robh@kernel.org> |
||
Lakshmi Ramasubramanian
|
28db15d49c |
kexec: Use fdt_appendprop_addrrange() to add ima buffer to FDT
fdt_appendprop_addrrange() function adds a property, with the given name, to the device tree at the given node offset, and also sets the address and size of the property. This function should be used to add "linux,ima-kexec-buffer" property to the device tree and set the address and size of the IMA measurement buffer, instead of using custom function. Use fdt_appendprop_addrrange() to add "linux,ima-kexec-buffer" property to the device tree. This property holds the address and size of the IMA measurement buffer that needs to be passed from the current kernel to the next kernel across kexec system call. Remove custom code that is used in setup_ima_buffer() to add "linux,ima-kexec-buffer" property to the device tree. Co-developed-by: Prakhar Srivastava <prsriva@linux.microsoft.com> Signed-off-by: Prakhar Srivastava <prsriva@linux.microsoft.com> Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210221174930.27324-12-nramas@linux.microsoft.com |
||
|
Lakshmi Ramasubramanian
|
fee3ff99bc |
powerpc: Move arch independent ima kexec functions to drivers/of/kexec.c
The functions defined in "arch/powerpc/kexec/ima.c" handle setting up and freeing the resources required to carry over the IMA measurement list from the current kernel to the next kernel across kexec system call. These functions do not have architecture specific code, but are currently limited to powerpc. Move remove_ima_buffer() and setup_ima_buffer() calls into of_kexec_alloc_and_setup_fdt() defined in "drivers/of/kexec.c". Move the remaining architecture independent functions from "arch/powerpc/kexec/ima.c" to "drivers/of/kexec.c". Delete "arch/powerpc/kexec/ima.c" and "arch/powerpc/include/asm/ima.h". Remove references to the deleted files and functions in powerpc and in ima. Co-developed-by: Prakhar Srivastava <prsriva@linux.microsoft.com> Signed-off-by: Prakhar Srivastava <prsriva@linux.microsoft.com> Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Tested-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210221174930.27324-11-nramas@linux.microsoft.com |
||
|
Rob Herring
|
b30be4dc73 |
of: Add a common kexec FDT setup function
Both arm64 and powerpc do essentially the same FDT /chosen setup for kexec. The differences are either omissions that arm64 should have or additional properties that will be ignored. The setup code can be combined and shared by both powerpc and arm64. The differences relative to the arm64 version: - If /chosen doesn't exist, it will be created (should never happen). - Any old dtb and initrd reserved memory will be released. - The new initrd and elfcorehdr are marked reserved. - "linux,booted-from-kexec" is set. The differences relative to the powerpc version: - "kaslr-seed" and "rng-seed" may be set. - "linux,elfcorehdr" is set. - Any existing "linux,usable-memory-range" is removed. Combine the code for setting up the /chosen node in the FDT and updating the memory reservation for kexec, for powerpc and arm64, in of_kexec_alloc_and_setup_fdt() and move it to "drivers/of/kexec.c". Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210221174930.27324-6-nramas@linux.microsoft.com |
||
|
Linus Torvalds
|
e229b429bb |
Char/Misc driver patches for 5.12-rc1
Here is the large set of char/misc/whatever driver subsystem updates for
5.12-rc1. Over time it seems like this tree is collecting more and more
tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86
maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only reported
issue being a merge conflict in include/linux/mod_devicetable.h that you
will hit in your tree due to the dfl_device_id addition from the fpga
subsystem in here. The resolution should be simple.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc/whatever driver subsystem updates
for 5.12-rc1. Over time it seems like this tree is collecting more and
more tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86 maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only
reported issue being a merge conflict due to the dfl_device_id
addition from the fpga subsystem in here"
* tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits)
spmi: spmi-pmic-arb: Fix hw_irq overflow
Documentation: coresight: Add PID tracing description
coresight: etm-perf: Support PID tracing for kernel at EL2
coresight: etm-perf: Clarify comment on perf options
ACRN: update MAINTAINERS: mailing list is subscribers-only
regmap: sdw-mbq: use MODULE_LICENSE("GPL")
regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ
regmap: sdw: use _no_pm functions in regmap_read/write
soundwire: intel: fix possible crash when no device is detected
MAINTAINERS: replace my with email with replacements
mhi: Fix double dma free
uapi: map_to_7segment: Update example in documentation
uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED
drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue
firewire: replace tricky statement by two simple ones
vme: make remove callback return void
firmware: google: make coreboot driver's remove callback return void
firmware: xilinx: Use explicit values for all enum values
sample/acrn: Introduce a sample of HSM ioctl interface usage
virt: acrn: Introduce an interface for Service VM to control vCPU
...
|
||
|
Linus Torvalds
|
7ac1161c27 |
Driver core / debugfs update for 5.12-rc1
Here is the "big" driver core and debugfs update for 5.12-rc1
This set of driver core patches caused a bunch of problems in linux-next
for the past few weeks, when Saravana tried to set fw_devlink=on as the
default functionality. This caused a number of systems to stop booting,
and lots of bugs were fixed in this area for almost all of the reported
systems, but this option is not ready to be turned on just yet for the
default operation based on this testing, so I've reverted that change at
the very end so we don't have to worry about regressions in 5.12. We
will try to turn this on for 5.13 if testing goes better over the next
few months.
Other than the fixes caused by the fw_devlink testing in here, there's
not much more:
- debugfs fixes for invalid input into debugfs_lookup()
- kerneldoc cleanups
- warn message if platform drivers return an error on their
remove callback (a futile effort, but good to catch).
All of these have been in linux-next for a while now, and the
regressions have gone away with the revert of the fw_devlink change.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core / debugfs update from Greg KH:
"Here is the "big" driver core and debugfs update for 5.12-rc1
This set of driver core patches caused a bunch of problems in
linux-next for the past few weeks, when Saravana tried to set
fw_devlink=on as the default functionality. This caused a number of
systems to stop booting, and lots of bugs were fixed in this area for
almost all of the reported systems, but this option is not ready to be
turned on just yet for the default operation based on this testing, so
I've reverted that change at the very end so we don't have to worry
about regressions in 5.12
We will try to turn this on for 5.13 if testing goes better over the
next few months.
Other than the fixes caused by the fw_devlink testing in here, there's
not much more:
- debugfs fixes for invalid input into debugfs_lookup()
- kerneldoc cleanups
- warn message if platform drivers return an error on their remove
callback (a futile effort, but good to catch).
All of these have been in linux-next for a while now, and the
regressions have gone away with the revert of the fw_devlink change"
* tag 'driver-core-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (35 commits)
Revert "driver core: Set fw_devlink=on by default"
of: property: fw_devlink: Ignore interrupts property for some configs
debugfs: do not attempt to create a new file before the filesystem is initalized
debugfs: be more robust at handling improper input in debugfs_lookup()
driver core: auxiliary bus: Fix calling stage for auxiliary bus init
of: irq: Fix the return value for of_irq_parse_one() stub
of: irq: make a stub for of_irq_parse_one()
clk: Mark fwnodes when their clock provider is added/removed
PM: domains: Mark fwnodes when their powerdomain is added/removed
irqdomain: Mark fwnodes when their irqdomain is added/removed
driver core: fw_devlink: Handle suppliers that don't use driver core
of: property: Add fw_devlink support for optional properties
driver core: Add fw_devlink.strict kernel param
of: property: Don't add links to absent suppliers
driver core: fw_devlink: Detect supplier devices that will never be added
driver core: platform: Emit a warning if a remove callback returned non-zero
of: property: Fix fw_devlink handling of interrupts/interrupts-extended
gpiolib: Don't probe gpio_device if it's not the primary device
device.h: Remove bogus "the" in kerneldoc
gpiolib: Bind gpio_device to a driver to enable fw_devlink=on by default
...
|
||
|
Linus Torvalds
|
a99163e9e7 |
Devicetree updates for v5.12:
- Sync dtc to upstream version v1.6.0-51-g183df9e9c2b9 and build
host fdtoverlay
- Add kbuild support to build DT overlays (%.dtbo)
- Drop NULLifying match table in of_match_device(). In preparation for
this, there are several driver cleanups to use
(of_)?device_get_match_data().
- Drop pointless wrappers from DT struct device API
- Convert USB binding schemas to use graph schema and remove old plain
text graph binding doc
- Convert spi-nor and v3d GPU bindings to DT schema
- Tree wide schema fixes for if/then schemas, array size constraints,
and undocumented compatible strings in examples
- Handle 'no-map' correctly for already reserved memblock regions
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Merge tag 'devicetree-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
- Sync dtc to upstream version v1.6.0-51-g183df9e9c2b9 and build host
fdtoverlay
- Add kbuild support to build DT overlays (%.dtbo)
- Drop NULLifying match table in of_match_device().
In preparation for this, there are several driver cleanups to use
(of_)?device_get_match_data().
- Drop pointless wrappers from DT struct device API
- Convert USB binding schemas to use graph schema and remove old plain
text graph binding doc
- Convert spi-nor and v3d GPU bindings to DT schema
- Tree wide schema fixes for if/then schemas, array size constraints,
and undocumented compatible strings in examples
- Handle 'no-map' correctly for already reserved memblock regions
* tag 'devicetree-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits)
driver core: platform: Drop of_device_node_put() wrapper
of: Remove of_dev_{get,put}()
dt-bindings: usb: Change descibe to describe in usbmisc-imx.txt
dt-bindings: can: rcar_canfd: Group tuples in pin control properties
dt-bindings: power: renesas,apmu: Group tuples in cpus properties
dt-bindings: mtd: spi-nor: Convert to DT schema format
dt-bindings: Use portable sort for version cmp
dt-bindings: ethernet-controller: fix fixed-link specification
dt-bindings: irqchip: Add node name to PRUSS INTC
dt-bindings: interconnect: Fix the expected number of cells
dt-bindings: Fix errors in 'if' schemas
dt-bindings: iommu: renesas,ipmmu-vmsa: Make 'power-domains' conditionally required
dt-bindings: Fix undocumented compatible strings in examples
kbuild: Add support to build overlays (%.dtbo)
scripts: dtc: Remove the unused fdtdump.c file
scripts: dtc: Build fdtoverlay tool
scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9
scripts: dtc: Fetch fdtoverlay.c from external DTC project
dt-bindings: thermal: sun8i: Fix misplaced schema keyword in compatible strings
dt-bindings: iio: dac: Fix AD5686 references
...
|
||
|
Saravana Kannan
|
bd6d617aac |
of: property: fw_devlink: Ignore interrupts property for some configs
When CONFIG_OF_IRQ is not defined, it doesn't make sense to parse
interrupts property.
Also, parsing and tracking interrupts property breaks some PPC
devices[1]. But none of the IRQ drivers in PPC seem ready to be
converted to a proper platform (or any bus) driver. So, there's not much
of a point in tracking the interrupts property for CONFIG_PPC. So, let's
stop parsing interrupts for CONFIG_PPC.
[1] - https://lore.kernel.org/lkml/20210213185422.GA195733@roeck-us.net/
Fixes:
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Rob Herring
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83c4a4eec0 |
of: Remove of_dev_{get,put}()
of_dev_get() and of_dev_put are just wrappers for get_device()/put_device()
on a platform_device. There's also already platform_device_{get,put}()
wrappers for this purpose. Let's update the few users and remove
of_dev_{get,put}().
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Julia Lawall <Julia.Lawall@inria.fr>
Cc: Gilles Muller <Gilles.Muller@inria.fr>
Cc: Nicolas Palix <nicolas.palix@imag.fr>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: netdev@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-usb@vger.kernel.org
Cc: cocci@systeme.lip6.fr
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210211232745.1498137-2-robh@kernel.org
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Saravana Kannan
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a9dd8f3c2c |
of: property: Add fw_devlink support for optional properties
Not all DT bindings are mandatory bindings. Add support for optional DT bindings and mark iommus, iommu-map, dmas as optional DT bindings. Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20210205222644.2357303-5-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Saravana Kannan
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1753c4d1ed |
of: property: Don't add links to absent suppliers
If driver core marks a firmware node as not a device, don't add fwnode
links where it's a supplier.
Fixes:
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Saravana Kannan
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f265f06af1 |
of: property: Fix fw_devlink handling of interrupts/interrupts-extended
Commit |
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Nicolas Saenz Julienne
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5a3fa75a4d |
nvmem: Add driver to expose reserved memory as nvmem
Firmware/co-processors might use reserved memory areas in order to pass data stemming from an nvmem device otherwise non accessible to Linux. For example an EEPROM memory only physically accessible to firmware, or data only accessible early at boot time. In order to expose this data to other drivers and user-space, the driver models the reserved memory area as an nvmem device. Tested-by: Tim Gover <tim.gover@raspberrypi.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20210129171430.11328-5-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Yong Wu
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89c7cb1608 |
of/device: Update dma_range_map only when dev has valid dma-ranges
The commit |
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Saravana Kannan
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4104ca776b |
of: property: Add fw_devlink support for interrupts
This allows fw_devlink to create device links between consumers of an interrupt and the supplier of the interrupt. Cc: Marc Zyngier <maz@kernel.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20210121225712.1118239-3-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Saravana Kannan
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e13f5b7a13 |
of: property: Add fw_devlink support for "gpio" and "gpios" binding
To provide backward compatibility for boards that use deprecated DT
bindings, we need to add fw_devlink support for "gpio" and "gpios".
We also need to ignore these properties on nodes with "gpio-hog"
property because their gpio[s] are all supplied by the parent node.
Fixes:
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Nicolas Boichat
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8a5a75e5e9 |
of/fdt: Make sure no-map does not remove already reserved regions
If the device tree is incorrectly configured, and attempts to
define a "no-map" reserved memory that overlaps with the kernel
data/code, the kernel would crash quickly after boot, with no
obvious clue about the nature of the issue.
For example, this would happen if we have the kernel mapped at
these addresses (from /proc/iomem):
40000000-41ffffff : System RAM
40080000-40dfffff : Kernel code
40e00000-411fffff : reserved
41200000-413e0fff : Kernel data
And we declare a no-map shared-dma-pool region at a fixed address
within that range:
mem_reserved: mem_region {
compatible = "shared-dma-pool";
reg = <0 0x40000000 0 0x01A00000>;
no-map;
};
To fix this, when removing memory regions at early boot (which is
what "no-map" regions do), we need to make sure that the memory
is not already reserved. If we do, __reserved_mem_reserve_reg
will throw an error:
[ 0.000000] OF: fdt: Reserved memory: failed to reserve memory
for node 'mem_region': base 0x0000000040000000, size 26 MiB
and the code that will try to use the region should also fail,
later on.
We do not do anything for non-"no-map" regions, as memblock
explicitly allows reserved regions to overlap, and the commit
that this fixes removed the check for that precise reason.
[ qperret: fixed conflicts caused by the usage of memblock_mark_nomap ]
Fixes:
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