linux-kernel - [PATCH 0/4] Use subdir-ccflags-* to inherit debug flag

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Date:   Fri, 5 Feb 2021 17:44:11 +0800
From:   Yicong Yang <yangyicong@...ilicon.com>
To:     <gregkh@...uxfoundation.org>, <jdelvare@...e.com>,
        <linux@...ck-us.net>, <giometti@...eenne.com>, <abbotti@....co.uk>,
        <hsweeten@...ionengravers.com>, <kw@...ux.com>,
        <helgaas@...nel.org>, <linux-kernel@...r.kernel.org>,
        <linux-pm@...r.kernel.org>, <linux-hwmon@...r.kernel.org>,
        <devel@...verdev.osuosl.org>, <linux-kbuild@...r.kernel.org>,
        <masahiroy@...nel.org>, <michal.lkml@...kovi.net>
CC:     <prime.zeng@...wei.com>, <yangyicong@...ilicon.com>,
        <linuxarm@...neuler.org>
Subject: [PATCH 0/4] Use subdir-ccflags-* to inherit debug flag

Few drivers use ccflags-* in their top directory to enable
-DDEBUG, but don't have config options to enable debug
in the sub-directories. They should want the subdirectories
inherit the debug flag from the top.

Use subdir-ccflags-* instead of ccflags-* to inherit the debug
settings from Kconfig when traversing subdirectories.

We primarily find this issue when debugging PCIe and other
drivers may also have this issues. Previous discussion can
be find at
https://lore.kernel.org/linux-pci/1612438215-33105-1-git-send-email-yangyicong@hisilicon.com/

Junhao He (4):
  driver core: Use subdir-ccflags-* to inherit debug flag
  hwmon: Use subdir-ccflags-* to inherit debug flag
  pps: Use subdir-ccflags-* to inherit debug flag
  staging: comedi: Use subdir-ccflags-* to inherit debug flag

 drivers/base/Makefile                         | 2 +-
 drivers/base/power/Makefile                   | 2 --
 drivers/hwmon/Makefile                        | 2 +-
 drivers/pps/Makefile                          | 2 +-
 drivers/staging/comedi/Makefile               | 2 +-
 drivers/staging/comedi/drivers/Makefile       | 1 -
 drivers/staging/comedi/drivers/tests/Makefile | 2 --
 drivers/staging/comedi/kcomedilib/Makefile    | 2 --
 8 files changed, 4 insertions(+), 11 deletions(-)

-- 
2.8.1