Re: [PATCH 0/6] lib/crc32: treewide: Use existing define with polynomial

From: Herbert Xu
Date: Fri Jul 27 2018 - 12:06:07 EST


On Tue, Jul 17, 2018 at 06:05:35PM +0200, Krzysztof Kozlowski wrote:
> Hi,
>
> Kernel defines same polynomial for CRC-32 in few places.
> This is unnecessary duplication of the same value. Also this might
> be error-prone for future code - every driver will define the
> polynomial again.
>
> This is an attempt to unify definition of polynomial. Few obvious
> hard-coded locations are fixed with define.
>
> All series depend on each 1/6 and 2/6.
>
> This could be merged in two different merge windows (1st lib/crc and then
> the rest) or taken through one tree.
>
> It would be nice to get some testing. Only generic lib/crc, bunzip, xz_crc32
> and Freescale's Ethernet driver were tested on HW. Rest got just different
> builds.
>
> Best regards,
> Krzysztof
>
>
>
>
> Krzysztof Kozlowski (6):
> lib/crc: Move polynomial definition to separate header
> lib/crc: Use consistent naming for CRC-32 polynomials
> crypto: stm32_crc32 - Use existing define with polynomial
> net: ethernet: Use existing define with polynomial
> staging: rtl: Use existing define with polynomial
> lib: Use existing define with polynomial
>
> drivers/crypto/stm32/stm32_crc32.c | 11 ++++-------
> drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 4 ++--
> drivers/net/ethernet/apple/bmac.c | 8 ++------
> drivers/net/ethernet/broadcom/tg3.c | 3 ++-
> drivers/net/ethernet/freescale/fec_main.c | 4 ++--
> drivers/net/ethernet/freescale/fs_enet/fec.h | 3 ---
> drivers/net/ethernet/freescale/fs_enet/mac-fec.c | 3 ++-
> drivers/net/ethernet/micrel/ks8851_mll.c | 3 ++-
> drivers/net/ethernet/synopsys/dwc-xlgmac-hw.c | 4 ++--
> drivers/staging/rtl8712/rtl871x_security.c | 5 ++---
> drivers/staging/rtl8723bs/core/rtw_security.c | 5 ++---
> include/linux/crc32poly.h | 20 ++++++++++++++++++++
> lib/crc32.c | 11 ++++++-----
> lib/crc32defs.h | 14 --------------
> lib/decompress_bunzip2.c | 3 ++-
> lib/gen_crc32table.c | 5 +++--
> lib/xz/xz_crc32.c | 3 ++-
> 17 files changed, 55 insertions(+), 54 deletions(-)
> create mode 100644 include/linux/crc32poly.h

All applied. Thanks.
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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