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path: root/drivers/nfc/s3fwrn5/firmware.c
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2021-10-11nfc: s3fwrn5: simplify dereferencing pointer to struct deviceKrzysztof Kozlowski1-18/+11
Simplify the code dereferencing several pointers to reach the struct device. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-07-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-1/+1
Conflicting commits, all resolutions pretty trivial: drivers/bus/mhi/pci_generic.c 5c2c85315948 ("bus: mhi: pci-generic: configurable network interface MRU") 56f6f4c4eb2a ("bus: mhi: pci_generic: Apply no-op for wake using sideband wake boolean") drivers/nfc/s3fwrn5/firmware.c a0302ff5906a ("nfc: s3fwrn5: remove unnecessary label") 46573e3ab08f ("nfc: s3fwrn5: fix undefined parameter values in dev_err()") 801e541c79bb ("nfc: s3fwrn5: fix undefined parameter values in dev_err()") MAINTAINERS 7d901a1e878a ("net: phy: add Maxlinear GPY115/21x/24x driver") 8a7b46fa7902 ("MAINTAINERS: add Yasushi SHOJI as reviewer for the Microchip CAN BUS Analyzer Tool driver") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-07-28nfc: s3fwrn5: fix undefined parameter values in dev_err()Tang Bin1-1/+1
In the function s3fwrn5_fw_download(), the 'ret' is not assigned, so the correct value should be given in dev_err function. Fixes: a0302ff5906a ("nfc: s3fwrn5: remove unnecessary label") Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-27nfc: s3fwrn5: fix undefined parameter values in dev_err()Tang Bin1-1/+1
In the function s3fwrn5_fw_download(), the 'ret' is not assigned, so the correct value should be given in dev_err function. Fixes: a0302ff5906a ("nfc: s3fwrn5: remove unnecessary label") Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-26nfc: s3fwrn5: remove unnecessary labelwengjianfeng1-7/+5
Simplify the code by removing unnecessary label and returning directly. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-12-15Merge tag 'net-next-5.11' of ↵Linus Torvalds1-12/+5
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - support "prefer busy polling" NAPI operation mode, where we defer softirq for some time expecting applications to periodically busy poll - AF_XDP: improve efficiency by more batching and hindering the adjacency cache prefetcher - af_packet: make packet_fanout.arr size configurable up to 64K - tcp: optimize TCP zero copy receive in presence of partial or unaligned reads making zero copy a performance win for much smaller messages - XDP: add bulk APIs for returning / freeing frames - sched: support fragmenting IP packets as they come out of conntrack - net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs BPF: - BPF switch from crude rlimit-based to memcg-based memory accounting - BPF type format information for kernel modules and related tracing enhancements - BPF implement task local storage for BPF LSM - allow the FENTRY/FEXIT/RAW_TP tracing programs to use bpf_sk_storage Protocols: - mptcp: improve multiple xmit streams support, memory accounting and many smaller improvements - TLS: support CHACHA20-POLY1305 cipher - seg6: add support for SRv6 End.DT4/DT6 behavior - sctp: Implement RFC 6951: UDP Encapsulation of SCTP - ppp_generic: add ability to bridge channels directly - bridge: Connectivity Fault Management (CFM) support as is defined in IEEE 802.1Q section 12.14. Drivers: - mlx5: make use of the new auxiliary bus to organize the driver internals - mlx5: more accurate port TX timestamping support - mlxsw: - improve the efficiency of offloaded next hop updates by using the new nexthop object API - support blackhole nexthops - support IEEE 802.1ad (Q-in-Q) bridging - rtw88: major bluetooth co-existance improvements - iwlwifi: support new 6 GHz frequency band - ath11k: Fast Initial Link Setup (FILS) - mt7915: dual band concurrent (DBDC) support - net: ipa: add basic support for IPA v4.5 Refactor: - a few pieces of in_interrupt() cleanup work from Sebastian Andrzej Siewior - phy: add support for shared interrupts; get rid of multiple driver APIs and have the drivers write a full IRQ handler, slight growth of driver code should be compensated by the simpler API which also allows shared IRQs - add common code for handling netdev per-cpu counters - move TX packet re-allocation from Ethernet switch tag drivers to a central place - improve efficiency and rename nla_strlcpy - number of W=1 warning cleanups as we now catch those in a patchwork build bot Old code removal: - wan: delete the DLCI / SDLA drivers - wimax: move to staging - wifi: remove old WDS wifi bridging support" * tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits) net: hns3: fix expression that is currently always true net: fix proc_fs init handling in af_packet and tls nfc: pn533: convert comma to semicolon af_vsock: Assign the vsock transport considering the vsock address flags af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path vsock_addr: Check for supported flag values vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag vm_sockets: Add flags field in the vsock address data structure net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context nfc: s3fwrn5: Release the nfc firmware net: vxget: clean up sparse warnings mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3 mlxsw: spectrum_router_xm: Introduce basic XM cache flushing mlxsw: reg: Add Router LPM Cache Enable Register mlxsw: reg: Add Router LPM Cache ML Delete Register mlxsw: spectrum_router_xm: Implement L-value tracking for M-index mlxsw: reg: Add XM Router M Table Register ...
2020-12-14nfc: s3fwrn5: Release the nfc firmwareBongsu Jeon1-1/+3
add the code to release the nfc firmware when the firmware image size is wrong. Fixes: c04c674fadeb ("nfc: s3fwrn5: Add driver for Samsung S3FWRN5 NFC Chip") Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20201213095850.28169-1-bongsu.jeon@samsung.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-04nfc: s3fwrn5: skip the NFC bootloader modeBongsu Jeon1-10/+1
If there isn't a proper NFC firmware image, Bootloader mode will be skipped. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20201203225257.2446-1-bongsu.jeon@samsung.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20crypto: sha - split sha.h into sha1.h and sha2.hEric Biggers1-1/+1
Currently <crypto/sha.h> contains declarations for both SHA-1 and SHA-2, and <crypto/sha3.h> contains declarations for SHA-3. This organization is inconsistent, but more importantly SHA-1 is no longer considered to be cryptographically secure. So to the extent possible, SHA-1 shouldn't be grouped together with any of the other SHA versions, and usage of it should be phased out. Therefore, split <crypto/sha.h> into two headers <crypto/sha1.h> and <crypto/sha2.h>, and make everyone explicitly specify whether they want the declarations for SHA-1, SHA-2, or both. This avoids making the SHA-1 declarations visible to files that don't want anything to do with SHA-1. It also prepares for potentially moving sha1.h into a new insecure/ or dangerous/ directory. Signed-off-by: Eric Biggers <ebiggers@google.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-11-18nfc: s3fwrn5: Fix the misspelling in a commentBongsu Jeon1-1/+1
stucture should be replaced by structure. Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Link: https://lore.kernel.org/r/20201117080950epcms2p4d332688ce351321c3222734bca680b57@epcms2p4 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-09-10nfc: s3fwrn5: Constify s3fwrn5_fw_info when not modifiedKrzysztof Kozlowski1-2/+2
Two functions accept pointer to struct s3fwrn5_fw_info but do not modify the contents. Make them const so the code is a little bit safer. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-08nfc: s3fwrn5: use crypto_shash_tfm_digest()Eric Biggers1-9/+1
Instead of manually allocating a 'struct shash_desc' on the stack and calling crypto_shash_digest(), switch to using the new helper function crypto_shash_tfm_digest() which does this for us. Cc: Robert Baldyga <r.baldyga@samsung.com> Cc: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-19nfc: s3fwrn5: replace the assertion with a WARN_ONAditya Pakki1-1/+4
In s3fwrn5_fw_recv_frame, if fw_info->rsp is not empty, the current code causes a crash via BUG_ON. However, s3fwrn5_fw_send_msg does not crash in such a scenario. The patch replaces the BUG_ON by returning the error to the callers and frees up skb. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 123Thomas Gleixner1-12/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 or later as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 7 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091651.504392586@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25crypto: shash - remove shash_desc::flagsEric Biggers1-1/+0
The flags field in 'struct shash_desc' never actually does anything. The only ostensibly supported flag is CRYPTO_TFM_REQ_MAY_SLEEP. However, no shash algorithm ever sleeps, making this flag a no-op. With this being the case, inevitably some users who can't sleep wrongly pass MAY_SLEEP. These would all need to be fixed if any shash algorithm actually started sleeping. For example, the shash_ahash_*() functions, which wrap a shash algorithm with the ahash API, pass through MAY_SLEEP from the ahash API to the shash API. However, the shash functions are called under kmap_atomic(), so actually they're assumed to never sleep. Even if it turns out that some users do need preemption points while hashing large buffers, we could easily provide a helper function crypto_shash_update_large() which divides the data into smaller chunks and calls crypto_shash_update() and cond_resched() for each chunk. It's not necessary to have a flag in 'struct shash_desc', nor is it necessary to make individual shash algorithms aware of this at all. Therefore, remove shash_desc::flags, and document that the crypto_shash_*() functions can be called from any context. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-06nfc: s3fwrn5: make array match static constColin Ian King1-1/+1
Don't populate the read-only array match on the stack, instead make it static const. Makes the object code smaller by over 310 bytes: Before: text data bss dec hex filename 8304 1084 128 9516 252c drivers/nfc/s3fwrn5/firmware.o After: text data bss dec hex filename 7894 1180 128 9202 23f2 drivers/nfc/s3fwrn5/firmware.o Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2017-06-16networking: introduce and use skb_put_data()Johannes Berg1-2/+2
A common pattern with skb_put() is to just want to memcpy() some data into the new space, introduce skb_put_data() for this. An spatch similar to the one for skb_put_zero() converts many of the places using it: @@ identifier p, p2; expression len, skb, data; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_data(skb, data, len); | -p = (t)skb_put(skb, len); +p = skb_put_data(skb, data, len); ) ( p2 = (t2)p; -memcpy(p2, data, len); | -memcpy(p, data, len); ) @@ type t, t2; identifier p, p2; expression skb, data; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); ) ( p2 = (t2)p; -memcpy(p2, data, sizeof(*p)); | -memcpy(p, data, sizeof(*p)); ) @@ expression skb, len, data; @@ -memcpy(skb_put(skb, len), data, len); +skb_put_data(skb, data, len); (again, manually post-processed to retain some comments) Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-27nfc: s3fwrn5: Use shashHerbert Xu1-9/+27
This patch replaces uses of the long obsolete hash interface with shash. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-20nfc: s3fwrn5: Add driver for Samsung S3FWRN5 NFC ChipRobert Baldyga1-0/+511
Add driver for Samsung S3FWRN5 NFC controller. S3FWRN5 is using NCI protocol and I2C communication interface. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>