linux-kernel - [PATCH v2] docs: document python version used for compilation

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Date: Sun, 12 May 2024 01:32:45 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Jonathan Corbet <corbet@....net>, Rob Clark <robdclark@...il.com>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
 Marijn Suijten <marijn.suijten@...ainline.org>
Cc: workflows@...r.kernel.org, linux-doc@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Masahiro Yamada <masahiroy@...nel.org>, 
 linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 freedreno@...ts.freedesktop.org, Jon Hunter <jonathanh@...dia.com>
Subject: [PATCH v2] docs: document python version used for compilation

The drm/msm driver had adopted using Python3 script to generate register
header files instead of shipping pre-generated header files. Document
the minimal Python version supported by the script. Per request by Jon
Hunter, the script is required to be compatible with Python 3.5.

Python is documented as an optional dependency, as it is required only
in a limited set of kernel configurations (following the example of
other optional dependencies).

Cc: Jon Hunter <jonathanh@...dia.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
Depends: https://lore.kernel.org/dri-devel/20240507230440.3384949-1-quic_abhinavk@quicinc.com/
---
Changes in v2:
- Expanded documentation for the Python usage.
- Link to v1: https://lore.kernel.org/r/20240509-python-version-v1-1-a7dda3a95b5f@linaro.org
---
 Documentation/process/changes.rst | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index 5685d7bfe4d0..30f17e3f954f 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -63,6 +63,7 @@ cpio                   any              cpio --version
 GNU tar                1.28             tar --version
 gtags (optional)       6.6.5            gtags --version
 mkimage (optional)     2017.01          mkimage --version
+Python (optional)      3.5.x            python3 --version
 ====================== ===============  ========================================
 
 .. [#f1] Sphinx is needed only to build the Kernel documentation
@@ -198,6 +199,13 @@ platforms. The tool is available via the ``u-boot-tools`` package or can be
 built from the U-Boot source code. See the instructions at
 https://docs.u-boot.org/en/latest/build/tools.html#building-tools-for-linux
 
+Python
+------
+
+Python is required to generate register headers for the drm/msm driver or to
+build the linker script if the kernel is built using Clang compiler if LTO
+(Link Time Optimisation) is enabled.
+
 System utilities
 ****************
 

---
base-commit: e8bd80985f8ed4c04e36209228163fcf06496763
change-id: 20240509-python-version-a8b6ca2125ff

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>