linux-kernel - [RFC PATCH v2 0/2] staging: media: atomisp: Refactor bit logic helpers in vmem.c

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Message-ID: <20250903092754.2751556-1-abarnas@google.com>
Date: Wed,  3 Sep 2025 09:27:52 +0000
From: "Adrian Barnaś" <abarnas@...gle.com>
To: Hans de Goede <hansg@...nel.org>, Mauro Carvalho Chehab <mchehab@...nel.org>, 
	Sakari Ailus <sakari.ailus@...ux.intel.com>, Andy Shevchenko <andy@...nel.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Dan Carpenter <dan.carpenter@...aro.org>, 
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-staging@...ts.linux.dev
Cc: "Adrian Barnaś" <abarnas@...gle.com>
Subject: [RFC PATCH v2 0/2] staging: media: atomisp: Refactor bit logic
 helpers in vmem.c

Refactor proposition for bit operation in vmem.c.
* Previous name for function "inv_subword()" for me is not telling what
function acctualy does - it clears bit specified by subword, so renamed
to clear_subword()
* Added a helper to create a proper bitmask for a subword, without using
GENMASK(end-1, start) which was claimed to be unsafe
* Simplified subword() and clear_subword() to be more readable.

Continuation of https://lore.kernel.org/linux-staging/20250902073841.2338568-1-abarnas@google.com/ 

Adrian Barnaś (2):
  staging: media: atomisp: Change name to better follow its behavior
  staging: media: atomisp: Simplify logic in vmem.c

 .../pci/hive_isp_css_common/host/vmem.c       | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

-- 
2.51.0.355.g5224444f11-goog