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Date: Wed, 26 Jan 2022 01:39:40 -0800
From: Lucas De Marchi <lucas.demarchi@...el.com>
To: linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
linux-security-module@...r.kernel.org,
nouveau@...ts.freedesktop.org, netdev@...r.kernel.org
Cc: Alex Deucher <alexander.deucher@....com>,
Andrew Morton <akpm@...ux-foundation.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Andy Shevchenko <andy.shevchenko@...il.com>,
Ben Skeggs <bskeggs@...hat.com>,
Christian König <christian.koenig@....com>,
Chris Wilson <chris@...is-wilson.co.uk>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...ux.ie>,
"David S. Miller" <davem@...emloft.net>,
Emma Anholt <emma@...olt.net>,
Francis Laniel <laniel_francis@...vacyrequired.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Harry Wentland <harry.wentland@....com>,
Jakub Kicinski <kuba@...nel.org>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Julia Lawall <julia.lawall@...6.fr>,
Kentaro Takeda <takedakn@...data.co.jp>,
Leo Li <sunpeng.li@....com>, Petr Mladek <pmladek@...e.com>,
Rahul Lakkireddy <rahul.lakkireddy@...lsio.com>,
Raju Rangoju <rajur@...lsio.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
Steven Rostedt <rostedt@...dmis.org>,
Vishal Kulkarni <vishal@...lsio.com>
Subject: [PATCH v2 00/11] lib/string_helpers: Add a few string helpers
Add some helpers under lib/string_helpers.h so they can be used
throughout the kernel. When I started doing this there were 2 other
previous attempts I know of, not counting the iterations each of them
had:
1) https://lore.kernel.org/all/20191023131308.9420-1-jani.nikula@intel.com/
2) https://lore.kernel.org/all/20210215142137.64476-1-andriy.shevchenko@linux.intel.com/#t
Now there is also the v1 of this same patch series:
https://lore.kernel.org/all/20220119072450.2890107-1-lucas.demarchi@intel.com/
Going through the comments I tried to find some common ground and
justification for what is in here, addressing some of the concerns
raised.
a. This version should be a drop-in replacement for what is currently in
the tree, with no change in behavior or binary size. For binary
size what I checked was that the linked objects in the end have the
same size (gcc 11). From comments in the previous attempts this seems
also the case for earlier compiler versions
b. I didn't change the function name to choice_* as suggested by Andrew
Morton in 20191023155619.43e0013f0c8c673a5c508c1e@...ux-foundation.org
because other people argumented in favor of shorter names for these
simple helpers - if they are long and people simply not use due to
that, we failed. However as pointed out in v1 of this patchseries,
onoff(), yesno(), enabledisable(), enableddisabled() have some
issues: the last 2 are hard to read and for the first 2 it would not
be hard to have the symbol to clash with variable names.
From comments in v1, most people were in favor (or at least not
opposed) to using str_on_off(), str_yes_no(), str_enable_disable()
and str_enabled_disabled().
c. Use string_helper.h for these helpers - pulling string.h in the
compilations units was one of the concerns and I think re-using this
already existing header is better than creating a new string-choice.h
d. One alternative to all of this suggested by Christian König
(43456ba7-c372-84cc-4949-dcb817188e21@....com) would be to add a
printk format. But besides the comment, he also seemed to like
the common function. This brought the argument from others that the
simple yesno()/enabledisable() already used in the code (or new
renamed version) is easier to remember and use than e.g. %py[DOY]
Changes in v2:
- Use str_ prefix and separate other words with underscore: it's a
little bit longer, but should improve readability
- Patches we re-split due to the rename: first patch adds all the new
functions, then additional patches try to do one conversion at a
time. While doing so, there were some fixes for issues already
present along the way
- Style suggestions from v1 were adopted
In v1 it was suggested to apply this in drm-misc. I will leave this to
maintainers to decide: maybe it would be simpler to merge the first
patches on drm-intel-next, wait for the back merge and merge the rest
through drm-misc - my fear is a big conflict with other work going in
drm-intel-next since the bulk of the rename is there.
I tried to figure out acks and reviews from v1 and apply them to how the
patches are now split.
thanks
Lucas De Marchi
Lucas De Marchi (11):
lib/string_helpers: Consolidate string helpers implementation
drm/i915: Fix trailing semicolon
drm/i915: Use str_yes_no()
drm/i915: Use str_enable_disable()
drm/i915: Use str_enabled_disabled()
drm/i915: Use str_on_off()
drm/amd/display: Use str_yes_no()
drm/gem: Sort includes alphabetically
drm: Convert open-coded yes/no strings to yesno()
tomoyo: Use str_yes_no()
cxgb4: Use str_yes_no()
drivers/gpu/drm/amd/amdgpu/atom.c | 4 +-
.../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 14 +-
drivers/gpu/drm/dp/drm_dp.c | 3 +-
drivers/gpu/drm/drm_client_modeset.c | 3 +-
drivers/gpu/drm/drm_gem.c | 23 +-
drivers/gpu/drm/i915/display/g4x_dp.c | 6 +-
.../gpu/drm/i915/display/intel_backlight.c | 3 +-
drivers/gpu/drm/i915/display/intel_ddi.c | 4 +-
drivers/gpu/drm/i915/display/intel_display.c | 46 ++--
.../drm/i915/display/intel_display_debugfs.c | 74 +++---
.../drm/i915/display/intel_display_power.c | 4 +-
.../drm/i915/display/intel_display_trace.h | 9 +-
drivers/gpu/drm/i915/display/intel_dp.c | 20 +-
drivers/gpu/drm/i915/display/intel_dpll.c | 3 +-
drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 7 +-
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 7 +-
drivers/gpu/drm/i915/display/intel_fbc.c | 4 +-
drivers/gpu/drm/i915/display/intel_fdi.c | 8 +-
drivers/gpu/drm/i915/display/intel_hdmi.c | 3 +-
drivers/gpu/drm/i915/display/intel_sprite.c | 6 +-
drivers/gpu/drm/i915/display/vlv_dsi_pll.c | 3 +-
.../gpu/drm/i915/gem/selftests/huge_pages.c | 9 +-
.../drm/i915/gem/selftests/i915_gem_context.c | 7 +-
drivers/gpu/drm/i915/gt/intel_breadcrumbs.c | 3 +-
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 11 +-
.../drm/i915/gt/intel_execlists_submission.c | 7 +-
drivers/gpu/drm/i915/gt/intel_gt_pm.c | 3 +-
drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c | 52 ++--
drivers/gpu/drm/i915/gt/intel_rc6.c | 5 +-
drivers/gpu/drm/i915/gt/intel_reset.c | 3 +-
drivers/gpu/drm/i915/gt/intel_rps.c | 13 +-
drivers/gpu/drm/i915/gt/intel_sseu.c | 9 +-
drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c | 10 +-
drivers/gpu/drm/i915/gt/selftest_timeline.c | 3 +-
drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 5 +-
drivers/gpu/drm/i915/gt/uc/intel_guc_log.c | 5 +-
drivers/gpu/drm/i915/gt/uc/intel_guc_rc.c | 6 +-
drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c | 4 +-
drivers/gpu/drm/i915/gt/uc/intel_uc.c | 14 +-
drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c | 20 +-
drivers/gpu/drm/i915/i915_debugfs.c | 17 +-
drivers/gpu/drm/i915/i915_driver.c | 4 +-
drivers/gpu/drm/i915/i915_gpu_error.c | 9 +-
drivers/gpu/drm/i915/i915_params.c | 5 +-
drivers/gpu/drm/i915/i915_utils.h | 21 +-
drivers/gpu/drm/i915/intel_device_info.c | 8 +-
drivers/gpu/drm/i915/intel_dram.c | 10 +-
drivers/gpu/drm/i915/intel_pm.c | 14 +-
drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c | 4 +-
drivers/gpu/drm/i915/selftests/i915_active.c | 3 +-
drivers/gpu/drm/i915/vlv_suspend.c | 3 +-
drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c | 5 +-
drivers/gpu/drm/radeon/atom.c | 3 +-
drivers/gpu/drm/v3d/v3d_debugfs.c | 11 +-
drivers/gpu/drm/virtio/virtgpu_debugfs.c | 4 +-
.../ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 249 ++++++++++--------
include/linux/string_helpers.h | 20 ++
security/tomoyo/audit.c | 2 +-
security/tomoyo/common.c | 19 +-
security/tomoyo/common.h | 1 -
60 files changed, 482 insertions(+), 373 deletions(-)
--
2.34.1
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