linux-kernel - [PATCH v2 0/3] ghes_edac: refactor memory error reporting to avoid code duplication

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Date:   Fri, 10 Dec 2021 21:40:16 +0800
From:   Shuai Xue <xueshuai@...ux.alibaba.com>
To:     mchehab@...nel.org, bp@...en8.de, tony.luck@...el.com,
        james.morse@....com, rric@...nel.org, ardb@...nel.org,
        linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-efi@...r.kernel.org
Cc:     xueshuai@...ux.alibaba.com, zhangliguang@...ux.alibaba.com,
        zhuo.song@...ux.alibaba.com
Subject: [PATCH v2 0/3] ghes_edac: refactor memory error reporting to avoid code duplication

ghes_edac_report_mem_error() in ghes_edac.c is Long Method and have
Duplicated Code with cper_mem_err_location(), cper_dimm_err_location(), and
cper_mem_err_type_str() in drivers/firmware/efi/cper.c. In addition, the
cper_print_mem() in drivers/firmware/efi/cper.c only reports the error
status and misses its description.

This patch set is to refactor ghes_edac_report_mem_error with:

- Patch 01 is to unify memory error report format with cper;
- Patch 02 is to introduces cper_*(), into ghes_edac_report_mem_error(),
  this can avoid bunch of duplicate code lines;
- Patch 02 is to wrap up error status decoding logics and reuse it in
    cper_print_mem().

Changes since v1:
https://lore.kernel.org/all/20211207031905.61906-2-xueshuai@linux.alibaba.com/

- add a new patch to unify ghes and cper before removing duplication.
- document the changes in patch description
- add EXPORT_SYMBOL_GPL()s for cper_*()
- document and the dependency and add UEFI_CPER dependency explicitly
Thanks Robert Richter for review comments.

Shuai Xue (3):
  ghes_edac: unify memory error report format with cper
  ghes_edac: refactor memory error location processing
  ghes_edac: refactor error status fields decoding

 drivers/edac/Kconfig        |   1 +
 drivers/edac/ghes_edac.c    | 196 +++++++-----------------------------
 drivers/firmware/efi/cper.c |  86 ++++++++++++----
 include/linux/cper.h        |   3 +
 4 files changed, 105 insertions(+), 181 deletions(-)

-- 
2.20.1.12.g72788fdb