Re: [PATCH v3 22/35] mm/slab: enable slab allocation tagging for kmalloc and friends

[kernel test robot <lkp@intel.com>]

Hi Suren,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-nonmm-unstable]
[also build test WARNING on linus/master v6.8-rc4]
[cannot apply to akpm-mm/mm-everything vbabka-slab/for-next next-20240216]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan/lib-string_helpers-Add-flags-param-to-string_get_size/20240213-054335
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
patch link:    https://lore.kernel.org/r/20240212213922.783301-23-surenb%40google.com
patch subject: [PATCH v3 22/35] mm/slab: enable slab allocation tagging for kmalloc and friends
config: x86_64-randconfig-121-20240214 (https://download.01.org/0day-ci/archive/20240217/202402171609.lm2hShEp-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240217/202402171609.lm2hShEp-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402171609.lm2hShEp-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   net/ipv6/seg6.c:254:15: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct in6_addr *t_old @@     got struct in6_addr [noderef] __rcu *tun_src @@
   net/ipv6/seg6.c:254:15: sparse:     expected struct in6_addr *t_old
   net/ipv6/seg6.c:254:15: sparse:     got struct in6_addr [noderef] __rcu *tun_src
>> net/ipv6/seg6.c:432:24: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct in6_addr [noderef] __rcu *tun_src @@     got void *[assigned] _res @@
   net/ipv6/seg6.c:432:24: sparse:     expected struct in6_addr [noderef] __rcu *tun_src
   net/ipv6/seg6.c:432:24: sparse:     got void *[assigned] _res

vim +432 net/ipv6/seg6.c

4f4853dc1c9c19 David Lebrun 2016-11-08  421  
915d7e5e5930b4 David Lebrun 2016-11-08  422  static int __net_init seg6_net_init(struct net *net)
915d7e5e5930b4 David Lebrun 2016-11-08  423  {
915d7e5e5930b4 David Lebrun 2016-11-08  424  	struct seg6_pernet_data *sdata;
915d7e5e5930b4 David Lebrun 2016-11-08  425  
915d7e5e5930b4 David Lebrun 2016-11-08  426  	sdata = kzalloc(sizeof(*sdata), GFP_KERNEL);
915d7e5e5930b4 David Lebrun 2016-11-08  427  	if (!sdata)
915d7e5e5930b4 David Lebrun 2016-11-08  428  		return -ENOMEM;
915d7e5e5930b4 David Lebrun 2016-11-08  429  
915d7e5e5930b4 David Lebrun 2016-11-08  430  	mutex_init(&sdata->lock);
915d7e5e5930b4 David Lebrun 2016-11-08  431  
915d7e5e5930b4 David Lebrun 2016-11-08 @432  	sdata->tun_src = kzalloc(sizeof(*sdata->tun_src), GFP_KERNEL);
915d7e5e5930b4 David Lebrun 2016-11-08  433  	if (!sdata->tun_src) {
915d7e5e5930b4 David Lebrun 2016-11-08  434  		kfree(sdata);
915d7e5e5930b4 David Lebrun 2016-11-08  435  		return -ENOMEM;
915d7e5e5930b4 David Lebrun 2016-11-08  436  	}
915d7e5e5930b4 David Lebrun 2016-11-08  437  
915d7e5e5930b4 David Lebrun 2016-11-08  438  	net->ipv6.seg6_data = sdata;
915d7e5e5930b4 David Lebrun 2016-11-08  439  

-- 
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