ERROR: alg: shash: ghash-neon test failed (wrong result) on test vector 1, cfg="init+update+final aligned buffer"

["Diederik de Haas" <diederik@cknow-tech.com>]

Hi,

With either 6.18-rc1 or -rc2 I saw the above error in dmesg:
https://paste.sr.ht/~diederik/54ed00a4cdcf5f9285674cf940d53a1ffd7ecc4f
and then the stack trace in the dmesg warnings.

This was on a (Rockchip based) PineTab2 (rk3566) on arm64.
Didn't have time to report it then and then it seems like the error was
gone with 6.18-rc5, so I assumed it was fixed*.

Then I started up an Raspberry Pi 3B+ (also arm64) with Debian's 6.17.9
kernel ... and I saw that error again. I also tried Debian's 6.17.2 and
my own 6.18(.0) kernel and they also showed that error.

So I guess there is an actual problem?
For completeness, the error and warnings (incl stack trace) on 6.17.9:

```
[   21.438404] alg: shash: ghash-neon test failed (wrong result) on test vector 1, cfg="init+update+final aligned buffer"
[   21.448906] alg: self-tests for ghash using ghash-neon failed (rc=-22)
[   21.448927] ------------[ cut here ]------------
[   21.460059] alg: self-tests for ghash using ghash-neon failed (rc=-22)
[   21.460231] WARNING: CPU: 0 PID: 650 at crypto/testmgr.c:5827 alg_test+0x92c/0x950
[   21.474266] Modules linked in: ghash_ce gf128mul gcm ccm algif_aead des_generic libdes rfcomm algif_skcipher bnep aes_neon_blk md4 algif_hash af_alg evdev vc4 snd_soc_hdmi_codec brcmfmac_wcc snd_soc_core btsdio nls_ascii snd_compress brcmfmac microchip nls_cp437 bcm2835_v4l2(C) snd_pcm_dmaengine drm_exec brcmutil hci_uart bcm2835_mmal_vchiq(C) drm_display_helper vfat btqca fat videobuf2_vmalloc lan78xx btrtl cfg80211 videobuf2_memops cec videobuf2_v4l2 phylink btintel rc_core of_mdio btbcm videodev drm_client_lib fixed_phy fwnode_mdio drm_dma_helper snd_bcm2835(C) libphy videobuf2_common snd_pcm bluetooth mdio_bus mc drm_kms_helper snd_timer snd cpufreq_dt soundcore ecdh_generic rfkill raspberrypi_cpufreq pwrseq_core ledtrig_default_on bcm2835_thermal vchiq(C) pwm_bcm2835 bcm2835_rng leds_gpio pkcs8_key_parser drm efi_pstore configfs nfnetlink autofs4 ext4 crc16 mbcache jbd2 crc32c_cryptoapi onboard_usb_dev dwc2 udc_core usbcore sdhci_iproc sdhci_pltfm sdhci bcm2835_wdt usb_common bcm2835 phy_generic i2c_bcm2835
[   21.565523] CPU: 0 UID: 0 PID: 650 Comm: cryptomgr_test Tainted: G         C          6.17.9+deb14-arm64 #1 PREEMPTLAZY  Debian 6.17.9-1
[   21.577700] Tainted: [C]=CRAP
[   21.580655] Hardware name: Raspberry Pi 3 Model B Plus Rev 1.3 (DT)
[   21.587014] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   21.594062] pc : alg_test+0x92c/0x950
[   21.597746] lr : alg_test+0x92c/0x950
[   21.601446] sp : ffff800081413d20
[   21.604793] x29: ffff800081413dd0 x28: 0000000000000111 x27: 00000000ffffffea
[   21.612030] x26: 0000000000000088 x25: ffffb3112dfa7d48 x24: 00000000ffffffff
[   21.621241] x23: 0000000000000089 x22: 000000000104000e x21: ffff000006320e00
[   21.629874] x20: ffffb3112f6d0000 x19: ffffb3112dfa9f48 x18: 0000000000000000
[   21.638500] x17: 726f746365762074 x16: ffffb3112d52c1a8 x15: ffffb3112f1b45e0
[   21.647115] x14: ffffb3112f0d7480 x13: 00000000000000c0 x12: 00000004ff201560
[   21.655729] x11: 00000000000000c0 x10: 0000000000000d40 x9 : ffffb3112cf28078
[   21.664327] x8 : ffff00000575dda0 x7 : 0000000000000004 x6 : 0000000000000000
[   21.672936] x5 : 0000000000000000 x4 : ffff00000575d000 x3 : ffff000004ad2800
[   21.681520] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00000575d000
[   21.690116] Call trace:
[   21.693925]  alg_test+0x92c/0x950 (P)
[   21.698952]  cryptomgr_test+0x2c/0x58
[   21.703972]  kthread+0x148/0x240
[   21.708535]  ret_from_fork+0x10/0x20
[   21.713440] ---[ end trace 0000000000000000 ]---
```

Hopefully this'll tell you where the (likely) problem is at.

Cheers,
  Diederik

*) Reading my own comment from that paste ... I possibly switched to an
'rkbin' based U-Boot and that's why I didn't see it anymore