linux-kernel - [PATCH v5 0/2] EDAC/ghes: refactor memory error reporting to avoid code duplication

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Message-Id: <20220126081702.55167-1-xueshuai@linux.alibaba.com>
Date:   Wed, 26 Jan 2022 16:17:00 +0800
From:   Shuai Xue <xueshuai@...ux.alibaba.com>
To:     bp@...en8.de, rric@...nel.org
Cc:     mchehab@...nel.org, tony.luck@...el.com, james.morse@....com,
        ardb@...nel.org, linux-edac@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
        xueshuai@...ux.alibaba.com, zhangliguang@...ux.alibaba.com,
        zhuo.song@...ux.alibaba.com
Subject: [PATCH v5 0/2] EDAC/ghes: refactor memory error reporting to avoid code duplication

ghes_edac_report_mem_error() in ghes_edac.c is a 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 wrap up error status decoding logics and reuse it in
    cper_print_mem().
- Patch 02 is to introduces cper_*(), into ghes_edac_report_mem_error(),
  this can avoid bunch of duplicate code lines;

Changes since v4:
- Fix alignment and format problem
- Link: https://lore.kernel.org/all/20220125024939.30635-1-xueshuai@linux.alibaba.com/
- Thanks Borislav Petkov for review comments.

Changes since v3:

- make cper_mem_err_status_str table a lot more compact
- Fix alignment and format problem
- Link: https://lore.kernel.org/all/20220124024759.19176-1-xueshuai@linux.alibaba.com/
- Thanks Borislav Petkov for review comments.

Changes since v2:

- delete the unified patch
- adjusted the order of patches
- Link: https://lore.kernel.org/all/20211210134019.28536-1-xueshuai@linux.alibaba.com/
- Thanks Borislav Petkov for review comments.

Changes since v1:

- 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
- Link: https://lore.kernel.org/all/20211207031905.61906-2-xueshuai@linux.alibaba.com/
- Thanks Robert Richter for review comments.

Shuai Xue (2):
  efi/cper: add cper_mem_err_status_str to decode error description
  EDAC/ghes: use cper functions to avoid code duplication

 drivers/edac/Kconfig        |   1 +
 drivers/edac/ghes_edac.c    | 196 +++++++-----------------------------
 drivers/firmware/efi/cper.c |  66 ++++++++----
 include/linux/cper.h        |   3 +
 4 files changed, 86 insertions(+), 180 deletions(-)

-- 
2.20.1.12.g72788fdb