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Message-ID: <202111110610.YCUMggYM-lkp@intel.com>
Date: Thu, 11 Nov 2021 06:51:19 +0800
From: kernel test robot <lkp@...el.com>
To: Oliver O'Halloran <oohall@...il.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Michael Ellerman <mpe@...erman.id.au>,
Joel Stanley <joel@....id.au>
Subject: arch/powerpc/platforms/powernv/vas-window.c:91:13: sparse: sparse:
incorrect type in assignment (different address spaces)
Hi Oliver,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 881007522c8fcc3785c75432dbb149ca1b78e106
commit: 3b70464aa78917e88c1d4bfc2100c344c0eda8e0 powerpc/powernv: Staticify functions without prototypes
date: 1 year, 3 months ago
config: powerpc64-randconfig-s031-20211015 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b70464aa78917e88c1d4bfc2100c344c0eda8e0
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 3b70464aa78917e88c1d4bfc2100c344c0eda8e0
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
>> arch/powerpc/platforms/powernv/vas-window.c:91:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *map @@ got void [noderef] __iomem * @@
arch/powerpc/platforms/powernv/vas-window.c:91:13: sparse: expected void *map
arch/powerpc/platforms/powernv/vas-window.c:91:13: sparse: got void [noderef] __iomem *
arch/powerpc/platforms/powernv/vas-window.c:116:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *map @@ got void [noderef] __iomem * @@
arch/powerpc/platforms/powernv/vas-window.c:116:13: sparse: expected void *map
arch/powerpc/platforms/powernv/vas-window.c:116:13: sparse: got void [noderef] __iomem *
>> arch/powerpc/platforms/powernv/vas-window.c:128:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *addr @@
arch/powerpc/platforms/powernv/vas-window.c:128:17: sparse: expected void volatile [noderef] __iomem *addr
arch/powerpc/platforms/powernv/vas-window.c:128:17: sparse: got void *addr
arch/powerpc/platforms/powernv/vas-window.c: note: in included file:
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long const volatile [noderef] [usertype] __iomem *addr @@ got void * @@
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: expected unsigned long long const volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: got void *
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long const volatile [noderef] [usertype] __iomem *addr @@ got void * @@
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: expected unsigned long long const volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: got void *
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long const volatile [noderef] [usertype] __iomem *addr @@ got void * @@
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: expected unsigned long long const volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: got void *
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long const volatile [noderef] [usertype] __iomem *addr @@ got void * @@
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: expected unsigned long long const volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: got void *
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long const volatile [noderef] [usertype] __iomem *addr @@ got void * @@
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: expected unsigned long long const volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: got void *
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long const volatile [noderef] [usertype] __iomem *addr @@ got void * @@
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: expected unsigned long long const volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:482:37: sparse: got void *
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
>> arch/powerpc/platforms/powernv/vas.h:476:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long volatile [noderef] [usertype] __iomem *addr @@ got void *[assigned] regptr @@
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: expected unsigned long long volatile [noderef] [usertype] __iomem *addr
arch/powerpc/platforms/powernv/vas.h:476:18: sparse: got void *[assigned] regptr
vim +91 arch/powerpc/platforms/powernv/vas-window.c
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 64
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 65 /*
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 66 * Map the paste bus address of the given send window into kernel address
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 67 * space. Unlike MMIO regions (map_mmio_region() below), paste region must
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 68 * be mapped cache-able and is only applicable to send windows.
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 69 */
5239af679a0742 Sukadev Bhattiprolu 2017-08-28 70 static void *map_paste_region(struct vas_window *txwin)
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 71 {
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 72 int len;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 73 void *map;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 74 char *name;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 75 u64 start;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 76
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 77 name = kasprintf(GFP_KERNEL, "window-v%d-w%d", txwin->vinst->vas_id,
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 78 txwin->winid);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 79 if (!name)
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 80 goto free_name;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 81
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 82 txwin->paste_addr_name = name;
dda44eb29c2357 Haren Myneni 2020-04-17 83 vas_win_paste_addr(txwin, &start, &len);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 84
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 85 if (!request_mem_region(start, len, name)) {
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 86 pr_devel("%s(): request_mem_region(0x%llx, %d) failed\n",
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 87 __func__, start, len);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 88 goto free_name;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 89 }
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 90
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 @91 map = ioremap_cache(start, len);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 92 if (!map) {
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 93 pr_devel("%s(): ioremap_cache(0x%llx, %d) failed\n", __func__,
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 94 start, len);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 95 goto free_name;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 96 }
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 97
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 98 pr_devel("Mapped paste addr 0x%llx to kaddr 0x%p\n", start, map);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 99 return map;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 100
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 101 free_name:
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 102 kfree(name);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 103 return ERR_PTR(-ENOMEM);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 104 }
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 105
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 106 static void *map_mmio_region(char *name, u64 start, int len)
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 107 {
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 108 void *map;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 109
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 110 if (!request_mem_region(start, len, name)) {
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 111 pr_devel("%s(): request_mem_region(0x%llx, %d) failed\n",
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 112 __func__, start, len);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 113 return NULL;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 114 }
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 115
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 116 map = ioremap(start, len);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 117 if (!map) {
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 118 pr_devel("%s(): ioremap(0x%llx, %d) failed\n", __func__, start,
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 119 len);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 120 return NULL;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 121 }
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 122
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 123 return map;
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 124 }
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 125
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 126 static void unmap_region(void *addr, u64 start, int len)
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 127 {
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 @128 iounmap(addr);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 129 release_mem_region((phys_addr_t)start, len);
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 130 }
180fe15a8299c1 Sukadev Bhattiprolu 2017-08-28 131
:::::: The code at line 91 was first introduced by commit
:::::: 180fe15a8299c14f77347c5835c98c2446226ee6 powerpc/powernv/vas: Define helpers to access MMIO regions
:::::: TO: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
:::::: CC: Michael Ellerman <mpe@...erman.id.au>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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