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Jason A. Donenfeld b9e5a18504 UPSTREAM: crypto: {arm,arm64,mips}/poly1305 - remove redundant non-reduction from emit 
This appears to be some kind of copy and paste error, and is actually
dead code.

Pre: f = 0 ⇒ (f >> 32) = 0
    f = (f >> 32) + le32_to_cpu(digest[0]);
Post: 0 ≤ f < 2³²
    put_unaligned_le32(f, dst);

Pre: 0 ≤ f < 2³² ⇒ (f >> 32) = 0
    f = (f >> 32) + le32_to_cpu(digest[1]);
Post: 0 ≤ f < 2³²
    put_unaligned_le32(f, dst + 4);

Pre: 0 ≤ f < 2³² ⇒ (f >> 32) = 0
    f = (f >> 32) + le32_to_cpu(digest[2]);
Post: 0 ≤ f < 2³²
    put_unaligned_le32(f, dst + 8);

Pre: 0 ≤ f < 2³² ⇒ (f >> 32) = 0
    f = (f >> 32) + le32_to_cpu(digest[3]);
Post: 0 ≤ f < 2³²
    put_unaligned_le32(f, dst + 12);

Therefore this sequence is redundant. And Andy's code appears to handle
misalignment acceptably.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit 31899908a0d248b030b4464425b86c717e0007d4)
Bug: 152722841
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I98725ba77775c01c9acba1b893f1fd8dbe5b89a7
2020-10-25 11:47:56 +01:00
..
alchemy mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
ar7 mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
ath25 mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
ath79 Revert "MIPS: perf: ath79: Fix perfcount IRQ assignment" 2019-06-11 12:20:53 +02:00
bcm47xx MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3 2019-11-20 18:45:35 +01:00
bcm63xx MIPS: BCM63XX: drop unused and broken DSP platform device 2020-01-27 14:50:10 +01:00
bmips MIPS: bmips: remove unnecessary call to register "simple-bus" 2018-06-24 09:27:27 -07:00
boot MIPS: Truncate link address into 32bit for 32bit kernel 2020-06-22 09:05:15 +02:00
cavium-octeon MIPS: OCTEON: add missing put_device() call in dwc3_octeon_device_init() 2020-08-19 08:14:58 +02:00
cobalt
configs This is the 4.19.134 stable release 2020-07-22 13:03:12 +02:00
crypto UPSTREAM: crypto: {arm,arm64,mips}/poly1305 - remove redundant non-reduction from emit 2020-10-25 11:47:56 +01:00
dec MIPS: Convert update_persistent_clock() to update_persistent_clock64() 2018-05-14 23:58:23 +01:00
emma
fw MIPS: fw: sni: Fix out of bounds init of o32 stack 2019-11-06 13:06:04 +01:00
generic MIPS: Remove obsolete MIPS checks for DST node "chosen@0" 2018-08-06 09:50:33 -07:00
include This is the 4.19.149 stable release 2020-10-01 16:49:05 +02:00
jazz MIPS: jazz: fix 64bit build 2019-02-27 10:08:53 +01:00
jz4740 MIPS: lb60: Fix pin mappings 2019-07-28 08:29:28 +02:00
kernel This is the 4.19.144 stable release 2020-09-09 19:48:58 +02:00
kvm This is the 4.19.147 stable release 2020-09-24 12:48:04 +02:00
lantiq MIPS: lantiq: Fix bitfield masking 2019-08-06 19:06:48 +02:00
lasat kbuild: rename LDFLAGS to KBUILD_LDFLAGS 2018-08-24 08:22:08 +09:00
lib MIPS: memset: Fix CPU_DADDI_WORKAROUNDS `small_fixup' regression 2018-10-05 09:41:39 -07:00
loongson32 MIPS: Loongson: Merge load addresses 2018-07-30 18:59:01 -07:00
loongson64 MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init() 2020-02-24 08:34:37 +01:00
math-emu MIPS: math-emu: Write-protect delay slot emulation pages 2019-01-09 17:38:47 +01:00
mm MIPS: mm: BMIPS5000 has inclusive physical caches 2020-09-09 19:04:24 +02:00
mti-malta MIPS: Malta: Use PIIX4 poweroff driver to power down 2018-06-24 09:27:27 -07:00
net bpf, mips: Limit to 33 tail calls 2020-01-12 12:17:12 +01:00
netlogic mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
oprofile MIPS: perf: More robustly probe for the presence of per-tc counters 2018-05-15 15:16:16 +01:00
paravirt mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
pci MIPS: OCTEON: don't set octeon_dma_bar_type if PCI is disabled 2019-02-15 08:10:11 +01:00
pic32 mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
pistachio MIPS: pistachio: Build uImage.gz by default 2019-06-11 12:20:53 +02:00
pmcs-msp71xx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pnx833x
power License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ralink MIPS: ralink: Select CONFIG_CPU_MIPSR2_IRQ_VI on MT7620/8 2019-02-12 19:47:17 +01:00
rb532 MIPS: RB532: Avoid undefined mac_pton without GENERIC_NET_UTILS 2018-01-10 16:39:03 +01:00
sgi-ip22 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
sgi-ip27 mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
sgi-ip32 MIPS: IP32: use generic dma noncoherent ops 2018-06-24 09:27:27 -07:00
sibyte MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur 2019-01-26 09:32:35 +01:00
sni MIPS: SNI: Fix spurious interrupts 2020-09-23 12:11:00 +02:00
tools Update MIPS email addresses 2017-11-03 09:02:30 -07:00
txx9 mips: txx9: fix iounmap related issue 2019-11-20 18:46:04 +01:00
vdso This is the 4.19.143 stable release 2020-09-03 13:19:20 +02:00
vr41xx MIPS: Annotate cpu_wait implementations with __cpuidle 2018-06-28 14:18:54 -07:00
Kbuild
Kbuild.platforms MIPS: Xilfpga: Switch to using generic defconfigs 2017-11-08 22:54:14 +00:00
Kconfig This is the 4.19.147 stable release 2020-09-24 12:48:04 +02:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile UPSTREAM: crypto: mips/chacha - wire up accelerated 32r2 code from Zinc 2020-10-24 14:43:39 +02:00
Makefile.postlink MIPS: fix indentation of the 'RELOCS' message 2020-02-11 04:33:58 -08:00