Re: [dm:for-next 29/30] drivers//md/dm-clone-target.c:563:14: error: implicit declaration of function 'vmalloc'; did you mean 'kmalloc'?

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I resolved this and pushed new code, thanks!

On Wed, Sep 11 2019 at 12:03pm -0400,
kbuild test robot <lkp@xxxxxxxxx> wrote:

> tree:   https://kernel.googlesource.com/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
> head:   509818079bf1fefff4ed02d6a1b994e20efc0480
> commit: 1529a543debdf75fb26e7ecd732da0cc36f78a36 [29/30] dm: add clone target
> config: sparc64-allmodconfig (attached as .config)
> compiler: sparc64-linux-gcc (GCC) 7.4.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout 1529a543debdf75fb26e7ecd732da0cc36f78a36
>         # save the attached .config to linux build tree
>         GCC_VERSION=7.4.0 make.cross ARCH=sparc64 
> 
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> 
> All error/warnings (new ones prefixed by >>):
> 
>    drivers//md/dm-clone-target.c: In function 'hash_table_init':
> >> drivers//md/dm-clone-target.c:563:14: error: implicit declaration of function 'vmalloc'; did you mean 'kmalloc'? [-Werror=implicit-function-declaration]
>      clone->ht = vmalloc(sz * sizeof(struct hash_table_bucket));
>                  ^~~~~~~
>                  kmalloc
> >> drivers//md/dm-clone-target.c:563:12: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
>      clone->ht = vmalloc(sz * sizeof(struct hash_table_bucket));
>                ^
>    drivers//md/dm-clone-target.c: In function 'hash_table_exit':
> >> drivers//md/dm-clone-target.c:579:2: error: implicit declaration of function 'vfree'; did you mean 'kfree'? [-Werror=implicit-function-declaration]
>      vfree(clone->ht);
>      ^~~~~
>      kfree
>    cc1: some warnings being treated as errors
> --
>    drivers//md/dm-clone-metadata.c: In function 'dirty_map_init':
> >> drivers//md/dm-clone-metadata.c:466:28: error: implicit declaration of function 'vzalloc'; did you mean 'kvzalloc'? [-Werror=implicit-function-declaration]
>      md->dmap[0].dirty_words = vzalloc(bitmap_size(md->nr_words));
>                                ^~~~~~~
>                                kvzalloc
> >> drivers//md/dm-clone-metadata.c:466:26: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
>      md->dmap[0].dirty_words = vzalloc(bitmap_size(md->nr_words));
>                              ^
>    drivers//md/dm-clone-metadata.c:474:26: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
>      md->dmap[1].dirty_words = vzalloc(bitmap_size(md->nr_words));
>                              ^
> >> drivers//md/dm-clone-metadata.c:478:3: error: implicit declaration of function 'vfree'; did you mean 'kvfree'? [-Werror=implicit-function-declaration]
>       vfree(md->dmap[0].dirty_words);
>       ^~~~~
>       kvfree
>    drivers//md/dm-clone-metadata.c: In function 'dm_clone_metadata_open':
> >> drivers//md/dm-clone-metadata.c:553:19: error: implicit declaration of function 'vmalloc'; did you mean 'kvmalloc'? [-Werror=implicit-function-declaration]
>      md->region_map = vmalloc(bitmap_size(md->nr_regions));
>                       ^~~~~~~
>                       kvmalloc
>    drivers//md/dm-clone-metadata.c:553:17: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
>      md->region_map = vmalloc(bitmap_size(md->nr_regions));
>                     ^
>    cc1: some warnings being treated as errors
> 
> vim +563 drivers//md/dm-clone-target.c
> 
>    549	
>    550	#define bucket_lock_irqsave(bucket, flags) \
>    551		spin_lock_irqsave(&(bucket)->lock, flags)
>    552	
>    553	#define bucket_unlock_irqrestore(bucket, flags) \
>    554		spin_unlock_irqrestore(&(bucket)->lock, flags)
>    555	
>    556	static int hash_table_init(struct clone *clone)
>    557	{
>    558		unsigned int i, sz;
>    559		struct hash_table_bucket *bucket;
>    560	
>    561		sz = 1 << HASH_TABLE_BITS;
>    562	
>  > 563		clone->ht = vmalloc(sz * sizeof(struct hash_table_bucket));
>    564		if (!clone->ht)
>    565			return -ENOMEM;
>    566	
>    567		for (i = 0; i < sz; i++) {
>    568			bucket = clone->ht + i;
>    569	
>    570			INIT_HLIST_HEAD(&bucket->head);
>    571			spin_lock_init(&bucket->lock);
>    572		}
>    573	
>    574		return 0;
>    575	}
>    576	
>    577	static void hash_table_exit(struct clone *clone)
>    578	{
>  > 579		vfree(clone->ht);
>    580	}
>    581	
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation


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