[PATCH 00/17] Introduce and use generic parity32/64 helper · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 01/17] bitops: Add generic parity calculation for u32 · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 02/17] bitops: Add generic parity calculation for u64 · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Jiri Slaby <jirislaby@kernel.org> · 2025-02-24
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · David Laight <hidden> · 2025-02-24
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Yu-Chun Lin <hidden> · 2025-02-24
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · "H. Peter Anvin" <hpa@zytor.com> · 2025-02-25
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · "H. Peter Anvin" <hpa@zytor.com> · 2025-02-25
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Andrew Cooper <hidden> · 2025-02-25
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · "H. Peter Anvin" <hpa@zytor.com> · 2025-02-26
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Yury Norov <yury.norov@gmail.com> · 2025-02-24
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-25
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-25
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Jiri Slaby <jirislaby@kernel.org> · 2025-02-26
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-26
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Yury Norov <yury.norov@gmail.com> · 2025-02-26
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Jiri Slaby <jirislaby@kernel.org> · 2025-02-27
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Yury Norov <yury.norov@gmail.com> · 2025-02-27
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · David Laight <hidden> · 2025-02-26
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Yury Norov <yury.norov@gmail.com> · 2025-02-27
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · David Laight <hidden> · 2025-02-27
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · "H. Peter Anvin" <hpa@zytor.com> · 2025-02-28
Re: [PATCH 02/17] bitops: Add generic parity calculation for u64 · Yury Norov <yury.norov@gmail.com> · 2025-03-02
[PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · Uros Bizjak <hidden> · 2025-02-24
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · "H. Peter Anvin" <hpa@zytor.com> · 2025-02-24
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · Uros Bizjak <hidden> · 2025-02-24
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · "H. Peter Anvin" <hpa@zytor.com> · 2025-02-24
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · "H. Peter Anvin" <hpa@zytor.com> · 2025-02-25
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · Yury Norov <yury.norov@gmail.com> · 2025-02-24
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · "H. Peter Anvin" <hpa@zytor.com> · 2025-02-24
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · Yury Norov <yury.norov@gmail.com> · 2025-02-24
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · David Laight <hidden> · 2025-02-25
Re: [PATCH 03/17] x86: Replace open-coded parity calculation with parity8() · "H. Peter Anvin" <hpa@zytor.com> · 2025-02-26
[PATCH 04/17] media: media/test_drivers: Replace open-coded parity calculation with parity8() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 05/17] media: pci: cx18-av-vbi: Replace open-coded parity calculation with parity8() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 06/17] media: saa7115: Replace open-coded parity calculation with parity8() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 07/17] serial: max3100: Replace open-coded parity calculation with parity8() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
Re: [PATCH 07/17] serial: max3100: Replace open-coded parity calculation with parity8() · Jiri Slaby <jirislaby@kernel.org> · 2025-02-24
[PATCH 08/17] lib/bch: Replace open-coded parity calculation with parity32() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 09/17] Input: joystick - Replace open-coded parity calculation with parity32() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 10/17] net: ethernet: oa_tc6: Replace open-coded parity calculation with parity32() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 11/17] wifi: brcm80211: Replace open-coded parity calculation with parity32() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
Re: [PATCH 11/17] wifi: brcm80211: Replace open-coded parity calculation with parity32() · Arend Van Spriel <arend.vanspriel@broadcom.com> · 2025-02-25
[PATCH 12/17] drm/bridge: dw-hdmi: Replace open-coded parity calculation with parity32() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 13/17] mtd: ssfdc: Replace open-coded parity calculation with parity32() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 14/17] fsi: i2cr: Replace open-coded parity calculation with parity32() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 15/17] fsi: i2cr: Replace open-coded parity calculation with parity64() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 16/17] Input: joystick - Replace open-coded parity calculation with parity64() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
[PATCH 17/17] nfp: bpf: Replace open-coded parity calculation with parity64() · Kuan-Wei Chiu <visitorckw@gmail.com> · 2025-02-23
Re: [PATCH 00/17] Introduce and use generic parity32/64 helper · Uros Bizjak <hidden> · 2025-02-23
Re: [PATCH 00/17] Introduce and use generic parity32/64 helper · Yu-Chun Lin <hidden> · 2025-02-24
Re: [PATCH 00/17] Introduce and use generic parity32/64 helper · Jeremy Kerr <jk@ozlabs.org> · 2025-02-24
Re: [PATCH 00/17] Introduce and use generic parity32/64 helper · Yu-Chun Lin <hidden> · 2025-02-24

Re: [PATCH 02/17] bitops: Add generic parity calculation for u64

From: Andrew Cooper <hidden>
Date: 2025-02-25 21:43:32
Also in: bpf, dri-devel, linux-input, linux-media, linux-wireless, lkml, netdev

Incidentally, in all of this, didn't anyone notice __builtin_parity()?

Yes.  It it has done sane for a decade on x86, yet does things such as
emitting a library call on other architectures.

https://godbolt.org/z/6qG3noebq

~Andrew

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