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2018-12-24net/netlink_compat: Fix a missing check of nla_parse_nestedAditya Pakki
In tipc_nl_compat_sk_dump(), if nla_parse_nested() fails, it could return an error. To be consistent with other invocations of the function call, on error, the fix passes the return value upstream. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-24ieee802154: lowpan_header_create check must check daddrWillem de Bruijn
Packet sockets may call dev_header_parse with NULL daddr. Make lowpan_header_ops.create fail. Fixes: 87a93e4eceb4 ("ieee802154: change needed headroom/tailroom") Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Alexander Aring <aring@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-24net/mlx4_core: drop useless LIST_HEADJulia Lawall
Drop LIST_HEAD where the variable it declares has never been used. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier x; @@ - LIST_HEAD(x); ... when != x // </smpl> Fixes: c82e9aa0a8bc ("mlx4_core: resource tracking for HCA resources used by guests") Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-24mlxsw: spectrum: drop useless LIST_HEADJulia Lawall
Drop LIST_HEAD where the variable it declares is never used. The uses were removed in 244cd96adb5f ("net_sched: remove list_head from tc_action"), but not the declaration. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier x; @@ - LIST_HEAD(x); ... when != x // </smpl> Fixes: 244cd96adb5f ("net_sched: remove list_head from tc_action") Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-24net/mlx5e: drop useless LIST_HEADJulia Lawall
Drop LIST_HEAD where the variable it declares is never used. These became useless in 244cd96adb5f ("net_sched: remove list_head from tc_action") The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier x; @@ - LIST_HEAD(x); ... when != x // </smpl> Fixes: 244cd96adb5f ("net_sched: remove list_head from tc_action") Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-24iptunnel: Set tun_flags in the iptunnel_metadata_reply from srcwenxu
ip l add tun type gretap external ip r a 10.0.0.2 encap ip id 1000 dst 172.168.0.2 key dev tun ip a a 10.0.0.1/24 dev tun The peer arp request to 10.0.0.1 with tunnel_id, but the arp reply only set the tun_id but not the tun_flags with TUNNEL_KEY. The arp reply packet don't contain tun_id field. Signed-off-by: wenxu <wenxu@ucloud.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-24net/mlx5e: fix semicolon.cocci warningskbuild test robot
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c:1339:57-58: Unneeded semicolon Remove unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci Fixes: 4c8fb2986d44 ("net/mlx5e: Increase VF representors' SQ size to 128") CC: Gavi Teitz <gavi@mellanox.com> Signed-off-by: kbuild test robot <fengguang.wu@intel.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-24staging: octeon: fix build failure with XFRM enabledFlorian Westphal
skb->sp doesn't exist anymore in the next-next tree, so mips defconfig no longer builds. Use helper instead to reset the secpath. Not even compile tested. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reported-by: Guenter Roeck <linux@roeck-us.net> Fixes: 4165079ba328d ("net: switch secpath to use skb extension infrastructure") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-24dt-bindings: pwm: rcar: Add r8a774c0 supportFabrizio Castro
Document RZ/G2E (R8A774C0) SoC bindings. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2018-12-24pwm: imx: Add ipg clock operationAnson Huang
i.MX PWM module's ipg_clk_s is for PWM register access, on most of i.MX SoCs, this ipg_clk_s is from system ipg clock or perclk which is always enabled, but on i.MX7D, the ipg_clk_s is from PWM1_CLK_ROOT which is controlled by CCGR132, that means the CCGR132 MUST be enabled first before accessing PWM registers on i.MX7D. This patch adds ipg clock operation to make sure register access successfully on i.MX7D and it fixes Linux kernel boot up hang during PWM driver probe. Fixes: 4a23e6ee9f69 ("ARM: dts: imx7d-sdb: Restore pwm backlight support") Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2018-12-24pwm: clps711x: Switch to SPDX identifierAlexander Shiyan
Adopt the SPDX license identifier headers to ease license compliance management. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2018-12-24pwm: clps711x: Fix period calculationAlexander Shiyan
Commit e39c0df1be5a ("pwm: Introduce the pwm_args concept") has changed the variable for the period for clps711x-pwm driver, so now pwm_get/set_period() works with pwm->state.period variable instead of pwm->args.period. This patch changes the period variable in other places where it is used. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2018-12-24pwm: bcm2835: Switch to SPDX identifierStefan Wahren
Adopt the SPDX license identifier headers to ease license compliance management. Cc: Bart Tanghe <bart.tanghe@thomasmore.be> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2018-12-24pwm: Enable Kona PWM to be built for the Cygnus architectureClément Péron
The Cygnus architecture uses a Kona PWM. This is already present in the device tree but can't be built actually. Hence, allow the Kona PWM to be built for the Cygnus architecture. Signed-off-by: Clément Péron <peron.clem@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Scott Branden <scott.branden@broadcom.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2018-12-24Merge branch 'next' of ↵Michael Ellerman
https://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next Freescale updates from Scott: "Highlights include elimination of legacy clock bindings use from dts files, an 83xx watchdog handler, fixes to old dts interrupt errors, and some minor cleanup."
2018-12-23Revert "powerpc/fsl_pci: simplify fsl_pci_dma_set_mask"Scott Wood
This reverts commit c6e5485e0cb509292a14e880e1944143f99758c7 due to failures such as: e1000e 2000:01:00.0: Tx DMA map failed Signed-off-by: Scott Wood <oss@buserror.net>
2018-12-23net: Revert recent Spectre-v1 patches.David S. Miller
This reverts: 50d5258634ae ("net: core: Fix Spectre v1 vulnerability") d686026b1e6e ("phonet: af_phonet: Fix Spectre v1 vulnerability") a95386f0390a ("nfc: af_nfc: Fix Spectre v1 vulnerability") a3ac5817ffe8 ("can: af_can: Fix Spectre v1 vulnerability") After some discussion with Alexei Starovoitov these all seem to be completely unnecessary. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-23Linux 4.20Linus Torvalds
2018-12-23Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull vfs fixes from Al Viro: "A couple of fixes - no common topic ;-)" [ The aio spectre patch also came in from Jens, so now we have that doubly fixed .. ] * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: proc/sysctl: don't return ENOMEM on lookup when a table is unregistering aio: fix spectre gadget in lookup_ioctx
2018-12-23crypto: skcipher - remove remnants of internal IV generatorsEric Biggers
Remove dead code related to internal IV generators, which are no longer used since they've been replaced with the "seqiv" and "echainiv" templates. The removed code includes: - The "givcipher" (GIVCIPHER) algorithm type. No algorithms are registered with this type anymore, so it's unneeded. - The "const char *geniv" member of aead_alg, ablkcipher_alg, and blkcipher_alg. A few algorithms still set this, but it isn't used anymore except to show via /proc/crypto and CRYPTO_MSG_GETALG. Just hardcode "<default>" or "<none>" in those cases. - The 'skcipher_givcrypt_request' structure, which is never used. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: cavium/nitrox - Fix build with !CONFIG_DEBUG_FSEric Biggers
Fixes: cf718eaa8f9b ("crypto: cavium/nitrox - Enabled Mailbox support") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: salsa20-generic - don't unnecessarily use atomic walkEric Biggers
salsa20-generic doesn't use SIMD instructions or otherwise disable preemption, so passing atomic=true to skcipher_walk_virt() is unnecessary. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: skcipher - add might_sleep() to skcipher_walk_virt()Eric Biggers
skcipher_walk_virt() can still sleep even with atomic=true, since that only affects the later calls to skcipher_walk_done(). But, skcipher_walk_virt() only has to allocate memory for some input data layouts, so incorrectly calling it with preemption disabled can go undetected. Use might_sleep() so that it's detected reliably. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: x86/chacha - avoid sleeping under kernel_fpu_begin()Eric Biggers
Passing atomic=true to skcipher_walk_virt() only makes the later skcipher_walk_done() calls use atomic memory allocations, not skcipher_walk_virt() itself. Thus, we have to move it outside of the preemption-disabled region (kernel_fpu_begin()/kernel_fpu_end()). (skcipher_walk_virt() only allocates memory for certain layouts of the input scatterlist, hence why I didn't notice this earlier...) Reported-by: syzbot+9bf843c33f782d73ae7d@syzkaller.appspotmail.com Fixes: 4af78261870a ("crypto: x86/chacha20 - add XChaCha20 support") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: cavium/nitrox - Added AEAD cipher supportNagadheeraj Rottela
Added support to offload AEAD ciphers to NITROX. Currently supported AEAD cipher is 'gcm(aes)'. Signed-off-by: Nagadheeraj Rottela <rnagadheeraj@marvell.com> Reviewed-by: Srikanth Jampala <jsrikanth@marvell.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: mxc-scc - fix build warnings on ARM64Fabio Estevam
The following build warnings are seen when building for ARM64 allmodconfig: drivers/crypto/mxc-scc.c:181:20: warning: format '%d' expects argument of type 'int', but argument 5 has type 'size_t' {aka 'long unsigned int'} [-Wformat=] drivers/crypto/mxc-scc.c:186:21: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' {aka 'long unsigned int'} [-Wformat=] drivers/crypto/mxc-scc.c:277:21: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' {aka 'long unsigned int'} [-Wformat=] drivers/crypto/mxc-scc.c:339:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/crypto/mxc-scc.c:340:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] Fix them by using the %zu specifier to print a size_t variable and using a plain %x to print the result of a readl(). Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: api - document missing stats memberCorentin Labbe
This patchs adds missing member of stats documentation. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: user - remove unused dump functionsCorentin Labbe
This patch removes unused dump functions for crypto_user_stats. There are remains of the copy/paste of crypto_user_base to crypto_user_stat and I forgot to remove them. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: chelsio - Fix wrong error counter incrementsHarsh Jain
Fix error counter increment in AEAD decrypt operation when validation of tag is done in Driver instead of H/W. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: chelsio - Reset counters on cxgb4 DetachHarsh Jain
Reset the counters on receiving detach from Cxgb4. Signed-off-by: Atul Gupta <atul.gupta@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: chelsio - Handle PCI shutdown eventHarsh Jain
chcr receives "CXGB4_STATE_DETACH" event on PCI Shutdown. Wait for processing of inflight request and Mark the device unavailable. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: chelsio - cleanup:send addr as value in function argumentHarsh Jain
Send dma address as value to function arguments instead of pointer. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: chelsio - Use same value for both channel in single WRHarsh Jain
Use tx_channel_id instead of rx_channel_id. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: chelsio - Swap location of AAD and IV sent in WRHarsh Jain
Send input as IV | AAD | Data. It will allow sending IV as Immediate Data and Creates space in Work request to add more dma mapped entries. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: chelsio - remove set but not used variable 'kctx_len'YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning: drivers/crypto/chelsio/chcr_ipsec.c: In function 'chcr_ipsec_xmit': drivers/crypto/chelsio/chcr_ipsec.c:674:33: warning: variable 'kctx_len' set but not used [-Wunused-but-set-variable] unsigned int flits = 0, ndesc, kctx_len; It not used since commit 8362ea16f69f ("crypto: chcr - ESN for Inline IPSec Tx") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: ux500 - Use proper enum in hash_set_dma_transferNathan Chancellor
Clang warns when one enumerated type is implicitly converted to another: drivers/crypto/ux500/hash/hash_core.c:169:4: warning: implicit conversion from enumeration type 'enum dma_data_direction' to different enumeration type 'enum dma_transfer_direction' [-Wenum-conversion] direction, DMA_CTRL_ACK | DMA_PREP_INTERRUPT); ^~~~~~~~~ 1 warning generated. dmaengine_prep_slave_sg expects an enum from dma_transfer_direction. We know that the only direction supported by this function is DMA_TO_DEVICE because of the check at the top of this function so we can just use the equivalent value from dma_transfer_direction. DMA_TO_DEVICE = DMA_MEM_TO_DEV = 1 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: ux500 - Use proper enum in cryp_set_dma_transferNathan Chancellor
Clang warns when one enumerated type is implicitly converted to another: drivers/crypto/ux500/cryp/cryp_core.c:559:5: warning: implicit conversion from enumeration type 'enum dma_data_direction' to different enumeration type 'enum dma_transfer_direction' [-Wenum-conversion] direction, DMA_CTRL_ACK); ^~~~~~~~~ drivers/crypto/ux500/cryp/cryp_core.c:583:5: warning: implicit conversion from enumeration type 'enum dma_data_direction' to different enumeration type 'enum dma_transfer_direction' [-Wenum-conversion] direction, ^~~~~~~~~ 2 warnings generated. dmaengine_prep_slave_sg expects an enum from dma_transfer_direction. Because we know the value of the dma_data_direction enum from the switch statement, we can just use the proper value from dma_transfer_direction so there is no more conversion. DMA_TO_DEVICE = DMA_MEM_TO_DEV = 1 DMA_FROM_DEVICE = DMA_DEV_TO_MEM = 2 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Add scatter/gather avx stubs, and use them in CDave Watson
Add the appropriate scatter/gather stubs to the avx asm. In the C code, we can now always use crypt_by_sg, since both sse and asm code now support scatter/gather. Introduce a new struct, aesni_gcm_tfm, that is initialized on startup to point to either the SSE, AVX, or AVX2 versions of the four necessary encryption/decryption routines. GENX_OPTSIZE is still checked at the start of crypt_by_sg. The total size of the data is checked, since the additional overhead is in the init function, calculating additional HashKeys. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Introduce partial block macroDave Watson
Before this diff, multiple calls to GCM_ENC_DEC will succeed, but only if all calls are a multiple of 16 bytes. Handle partial blocks at the start of GCM_ENC_DEC, and update aadhash as appropriate. The data offset %r11 is also updated after the partial block. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Introduce READ_PARTIAL_BLOCK macroDave Watson
Introduce READ_PARTIAL_BLOCK macro, and use it in the two existing partial block cases: AAD and the end of ENC_DEC. In particular, the ENC_DEC case should be faster, since we read by 8/4 bytes if possible. This macro will also be used to read partial blocks between enc_update and dec_update calls. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Move ghash_mul to GCM_COMPLETEDave Watson
Prepare to handle partial blocks between scatter/gather calls. For the last partial block, we only want to calculate the aadhash in GCM_COMPLETE, and a new partial block macro will handle both aadhash update and encrypting partial blocks between calls. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Fill in new context data structuresDave Watson
Fill in aadhash, aadlen, pblocklen, curcount with appropriate values. pblocklen, aadhash, and pblockenckey are also updated at the end of each scatter/gather operation, to be carried over to the next operation. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Merge avx precompute functionsDave Watson
The precompute functions differ only by the sub-macros they call, merge them to a single macro. Later diffs add more code to fill in the gcm_context_data structure, this allows changes in a single place. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Split AAD hash calculation to separate macroDave Watson
AAD hash only needs to be calculated once for each scatter/gather operation. Move it to its own macro, and call it from GCM_INIT instead of INITIAL_BLOCKS. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Add GCM_COMPLETE macroDave Watson
Merge encode and decode tag calculations in GCM_COMPLETE macro. Scatter/gather routines will call this once at the end of encryption or decryption. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - support 256 byte keys in avx asmDave Watson
Add support for 192/256-bit keys using the avx gcm/aes routines. The sse routines were previously updated in e31ac32d3b (Add support for 192 & 256 bit keys to AESNI RFC4106). Instead of adding an additional loop in the hotpath as in e31ac32d3b, this diff instead generates separate versions of the code using macros, and the entry routines choose which version once. This results in a 5% performance improvement vs. adding a loop to the hot path. This is the same strategy chosen by the intel isa-l_crypto library. The key size checks are removed from the c code where appropriate. Note that this diff depends on using gcm_context_data - 256 bit keys require 16 HashKeys + 15 expanded keys, which is larger than struct crypto_aes_ctx, so they are stored in struct gcm_context_data. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Macro-ify func save/restoreDave Watson
Macro-ify function save and restore. These will be used in new functions added for scatter/gather update operations. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Introduce gcm_context_dataDave Watson
Add the gcm_context_data structure to the avx asm routines. This will be necessary to support both 256 bit keys and scatter/gather. The pre-computed HashKeys are now stored in the gcm_context_data struct, which is expanded to hold the greater number of hashkeys necessary for avx. Loads and stores to the new struct are always done unlaligned to avoid compiler issues, see e5b954e8 "Use unaligned loads from gcm_context_data" Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-23crypto: aesni - Merge GCM_ENC_DECDave Watson
The GCM_ENC_DEC routines for AVX and AVX2 are identical, except they call separate sub-macros. Pass the macros as arguments, and merge them. This facilitates additional refactoring, by requiring changes in only one place. The GCM_ENC_DEC macro was moved above the CONFIG_AS_AVX* ifdefs, since it will be used by both AVX and AVX2. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-12-22can: af_can: Fix Spectre v1 vulnerabilityGustavo A. R. Silva
protocol is indirectly controlled by user-space, hence leading to a potential exploitation of the Spectre variant 1 vulnerability. This issue was detected with the help of Smatch: net/can/af_can.c:115 can_get_proto() warn: potential spectre issue 'proto_tab' [w] Fix this by sanitizing protocol before using it to index proto_tab. Notice that given that speculation windows are large, the policy is to kill the speculation on the first load and not worry if it can be completed with a dependent load/store [1]. [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit (git 2.34.1) at 2025-09-16 09:09:41 +0000