linux-kernel - next-20241015: drivers/of/address.c:244:31: error: passing 'const struct fwnode_handle *' to parameter of type 'struct fwnode_handle *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]

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Message-ID: <CA+G9fYuhS6Ltemvb_EZfq+j3PpTnmo4qb46Gu1s6L47wMsNO3g@mail.gmail.com>
Date: Tue, 15 Oct 2024 20:19:31 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: open list <linux-kernel@...r.kernel.org>, 
	Linux-Next Mailing List <linux-next@...r.kernel.org>, lkft-triage@...ts.linaro.org, 
	Linux Regressions <regressions@...ts.linux.dev>, 
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>, clang-built-linux <llvm@...ts.linux.dev>
Cc: Saravana Kannan <saravanak@...gle.com>, Rob Herring <robh@...nel.org>, 
	Anders Roxell <anders.roxell@...aro.org>, Dan Carpenter <dan.carpenter@...aro.org>, 
	Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>
Subject: next-20241015: drivers/of/address.c:244:31: error: passing 'const
 struct fwnode_handle *' to parameter of type 'struct fwnode_handle *'
 discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]

A larger set of clang-19 builds failed on arm, mips, riscv and powerpc due to
following Linux next-20241015 tag and these include tinyconfig, allnoconfig etc.

And gcc-13 and gcc-12 builds are passed.

First seen on next-20241014
  GOOD: next-20241014
  BAD: next-20241015

List of build regressions,
arm:
  build:
    * clang-19-sama5_defconfig
    * clang-nightly-mxs_defconfig
    * clang-nightly-exynos_defconfig
    * clang-19-at91_dt_defconfig
    * clang-19-pxa910_defconfig
    * clang-nightly-vexpress_defconfig
    * clang-19-vexpress_defconfig
    * clang-19-mxs_defconfig
    * clang-nightly-davinci_all_defconfig
    * clang-19-allnoconfig
...
powerpc:
  build:
    * clang-19-tqm8xx_defconfig
    * clang-19-tinyconfig
    * clang-nightly-tinyconfig
    * clang-nightly-tqm8xx_defconfig
    * clang-19-allnoconfig
    * clang-19-ppc64e_defconfig
    * clang-nightly-ppc64e_defconfig
    * clang-nightly-allnoconfig

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

Build log:
-----------
drivers/of/address.c:244:31: error: passing 'const struct
fwnode_handle *' to parameter of type 'struct fwnode_handle *'
discards qualifiers
[-Werror,-Wincompatible-pointer-types-discards-qualifiers]
  244 |                 err = pci_register_io_range(&np->fwnode,
range->cpu_addr,
      |                                             ^~~~~~~~~~~
include/linux/pci.h:2022:63: note: passing argument to parameter 'fwnode' here
 2022 | static inline int pci_register_io_range(struct fwnode_handle *fwnode,
      |                                                               ^
1 error generated


Build link,
-------
 - https://storage.tuxsuite.com/public/linaro/lkft/builds/2nShjJ9pOcjqxIXViYuRI5haZZP/
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241015/testrun/25441737/suite/build/test/clang-19-tinyconfig/log

Build history:
----------
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241015/testrun/25441737/suite/build/test/clang-19-tinyconfig/history/

metadata:
----
  git describe: next-20241015
  git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
  git sha: b852e1e7a0389ed6168ef1d38eb0bad71a6b11e8
  kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2nShjJ9pOcjqxIXViYuRI5haZZP/config
  build url: https://storage.tuxsuite.com/public/linaro/lkft/builds/2nShjJ9pOcjqxIXViYuRI5haZZP/
  toolchain: clang-19
  config: defconfig
  arch: arm, mips, riscv and powerpc

Steps to reproduce:
-------
# tuxmake --runtime podman --target-arch mips --toolchain clang-19
--kconfig tinyconfig LLVM=1 LLVM_IAS=1

--
Linaro LKFT
https://lkft.linaro.org