linux-kernel - arch/powerpc/kexec/core.c:217:20: sparse: sparse: incorrect type in assignment (different base types)

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Message-ID: <202512221044.ZxX0SAof-lkp@intel.com>
Date: Mon, 22 Dec 2025 10:13:34 +0800
From: kernel test robot <lkp@...el.com>
To: Ben Collins <bcollins@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
 Madhavan Srinivasan <maddy@...ux.ibm.com>,
 Sourabh Jain <sourabhjain@...ux.ibm.com>
Subject: arch/powerpc/kexec/core.c:217:20: sparse: sparse: incorrect
 type in assignment (different base types)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   9448598b22c50c8a5bb77a9103e2d49f134c9578
commit: 38c64dfe0af12778953846df5f259e913275cfe5 kexec: Include kernel-end even without crashkernel
date:   6 weeks ago
config: powerpc-randconfig-r111-20251222 (https://download.01.org/0day-ci/archive/20251222/202512221044.ZxX0SAof-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 42b3483ac4987cae1bdb632398e8a3ce2dea6633)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251222/202512221044.ZxX0SAof-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512221044.ZxX0SAof-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> arch/powerpc/kexec/core.c:217:20: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int static [addressable] [toplevel] [usertype] kernel_end @@     got restricted __be32 [usertype] @@
   arch/powerpc/kexec/core.c:217:20: sparse:     expected unsigned int static [addressable] [toplevel] [usertype] kernel_end
   arch/powerpc/kexec/core.c:217:20: sparse:     got restricted __be32 [usertype]

vim +217 arch/powerpc/kexec/core.c

6f29c3298b1821 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-17  203  
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  204  static int __init kexec_setup(void)
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  205  {
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  206  	struct device_node *node;
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  207  
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  208  	node = of_find_node_by_path("/chosen");
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  209  	if (!node)
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  210  		return -ENOENT;
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  211  
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  212  	/* remove any stale properties so ours can be found */
38c64dfe0af127 arch/powerpc/kexec/core.c           Ben Collins     2025-04-21  213  	of_remove_property(node, of_find_property(node, kernel_end_prop.name,
38c64dfe0af127 arch/powerpc/kexec/core.c           Ben Collins     2025-04-21  214  						  NULL));
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  215  
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  216  	/* information needed by userspace when using default_machine_kexec */
ea961a828fe725 arch/powerpc/kernel/machine_kexec.c Anton Blanchard 2014-01-22 @217  	kernel_end = cpu_to_be_ulong(__pa(_end));
79d1c712958f94 arch/powerpc/kernel/machine_kexec.c Nathan Fontenot 2012-10-02  218  	of_add_property(node, &kernel_end_prop);
2e8e4f5b80e101 arch/powerpc/kernel/machine_kexec.c Dale Farnsworth 2008-12-16  219  

:::::: The code at line 217 was first introduced by commit
:::::: ea961a828fe7250e954f086d74d9323c3d44c3e4 powerpc: Fix endian issues in kexec and crash dump code

:::::: TO: Anton Blanchard <anton@...ba.org>
:::::: CC: Benjamin Herrenschmidt <benh@...nel.crashing.org>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki