tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1b5044021070efa3259f3e9548dc35d1eb6aa844 commit: dbed452a078d56bc7f1abecc3edd6a75e8e4484e dma-pool: decouple DMA_REMAP from DMA_COHERENT_POOL date: 3 days ago config: x86_64-randconfig-s031-20200618 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-rc1-10-gc17b1b06-dirty git checkout dbed452a078d56bc7f1abecc3edd6a75e8e4484e # save the attached .config to linux build tree make W=1 C=1 ARCH=x86_64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
All errors (new ones prefixed by >>):
vim +104 include/linux/genalloc.h
b26981c8f743d3 Zhao Qiang 2015-11-30 95
929f97276bcf7f Dean Nelson 2006-06-23 96 extern struct
gen_pool *gen_pool_create(int, int);
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 97 extern
phys_addr_t gen_pool_virt_to_phys(struct gen_pool *pool, unsigned long);
795ee30648c708 Dan Williams 2019-06-13 98 extern int
gen_pool_add_owner(struct gen_pool *, unsigned long, phys_addr_t,
795ee30648c708 Dan Williams 2019-06-13 99
size_t, int, void *);
795ee30648c708 Dan Williams 2019-06-13 100
795ee30648c708 Dan Williams 2019-06-13 101 static inline
int gen_pool_add_virt(struct gen_pool *pool, unsigned long addr,
795ee30648c708 Dan Williams 2019-06-13 102
phys_addr_t phys, size_t size, int nid)
795ee30648c708 Dan Williams 2019-06-13 103 {
795ee30648c708 Dan Williams 2019-06-13 @104 return
gen_pool_add_owner(pool, addr, phys, size, nid, NULL);
795ee30648c708 Dan Williams 2019-06-13 105 }
795ee30648c708 Dan Williams 2019-06-13 106
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 107 /**
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 108 *
gen_pool_add - add a new chunk of special memory to the pool
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 109 * @pool: pool
to add new memory chunk to
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 110 * @addr:
starting address of memory chunk to add to pool
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 111 * @size: size
in bytes of the memory chunk to add to pool
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 112 * @nid: node
id of the node the chunk structure and bitmap should be
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 113 *
allocated on, or -1
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 114 *
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 115 * Add a new
chunk of special memory to the specified pool.
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 116 *
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 117 * Returns 0
on success or a -ve errno on failure.
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 118 */
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 119 static inline
int gen_pool_add(struct gen_pool *pool, unsigned long addr,
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 120
size_t size, int nid)
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 121 {
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 122 return
gen_pool_add_virt(pool, addr, -1, size, nid);
3c8f370ded3483 Jean-Christophe PLAGNIOL-VILLARD 2011-05-24 123 }
322acc96d4bd3d Steve Wise 2006-10-02 124 extern void
gen_pool_destroy(struct gen_pool *);
795ee30648c708 Dan Williams 2019-06-13 125 unsigned long
gen_pool_alloc_algo_owner(struct gen_pool *pool, size_t size,
795ee30648c708 Dan Williams 2019-06-13 126
genpool_algo_t algo, void *data, void **owner);
795ee30648c708 Dan Williams 2019-06-13 127
795ee30648c708 Dan Williams 2019-06-13 128 static inline
unsigned long gen_pool_alloc_owner(struct gen_pool *pool,
795ee30648c708 Dan Williams 2019-06-13 129
size_t size, void **owner)
795ee30648c708 Dan Williams 2019-06-13 130 {
795ee30648c708 Dan Williams 2019-06-13 131 return
gen_pool_alloc_algo_owner(pool, size, pool->algo, pool->data,
795ee30648c708 Dan Williams 2019-06-13 132
owner);
795ee30648c708 Dan Williams 2019-06-13 133 }
795ee30648c708 Dan Williams 2019-06-13 134
795ee30648c708 Dan Williams 2019-06-13 135 static inline
unsigned long gen_pool_alloc_algo(struct gen_pool *pool,
795ee30648c708 Dan Williams 2019-06-13 136
size_t size, genpool_algo_t algo, void *data)
795ee30648c708 Dan Williams 2019-06-13 137 {
795ee30648c708 Dan Williams 2019-06-13 @138 return
gen_pool_alloc_algo_owner(pool, size, algo, data, NULL);
795ee30648c708 Dan Williams 2019-06-13 139 }
795ee30648c708 Dan Williams 2019-06-13 140
795ee30648c708 Dan Williams 2019-06-13 141 /**
795ee30648c708 Dan Williams 2019-06-13 142 *
gen_pool_alloc - allocate special memory from the pool
795ee30648c708 Dan Williams 2019-06-13 143 * @pool: pool
to allocate from
795ee30648c708 Dan Williams 2019-06-13 144 * @size:
number of bytes to allocate from the pool
795ee30648c708 Dan Williams 2019-06-13 145 *
795ee30648c708 Dan Williams 2019-06-13 146 * Allocate
the requested number of bytes from the specified pool.
795ee30648c708 Dan Williams 2019-06-13 147 * Uses the
pool allocation function (with first-fit algorithm by default).
795ee30648c708 Dan Williams 2019-06-13 148 * Can not be
used in NMI handler on architectures without
795ee30648c708 Dan Williams 2019-06-13 149 * NMI-safe
cmpxchg implementation.
795ee30648c708 Dan Williams 2019-06-13 150 */
795ee30648c708 Dan Williams 2019-06-13 151 static inline
unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
795ee30648c708 Dan Williams 2019-06-13 152 {
795ee30648c708 Dan Williams 2019-06-13 153 return
gen_pool_alloc_algo(pool, size, pool->algo, pool->data);
795ee30648c708 Dan Williams 2019-06-13 154 }
795ee30648c708 Dan Williams 2019-06-13 155
684f0d3d14f274 Nicolin Chen 2013-11-12 156 extern void
*gen_pool_dma_alloc(struct gen_pool *pool, size_t size,
684f0d3d14f274 Nicolin Chen 2013-11-12 157
dma_addr_t *dma);
cf394fc5f7155c Fredrik Noring 2019-06-25 158 extern void
*gen_pool_dma_alloc_algo(struct gen_pool *pool, size_t size,
cf394fc5f7155c Fredrik Noring 2019-06-25 159
dma_addr_t *dma, genpool_algo_t algo, void *data);
cf394fc5f7155c Fredrik Noring 2019-06-25 160 extern void
*gen_pool_dma_alloc_align(struct gen_pool *pool, size_t size,
cf394fc5f7155c Fredrik Noring 2019-06-25 161
dma_addr_t *dma, int align);
cf394fc5f7155c Fredrik Noring 2019-06-25 162 extern void
*gen_pool_dma_zalloc(struct gen_pool *pool, size_t size, dma_addr_t *dma);
cf394fc5f7155c Fredrik Noring 2019-06-25 163 extern void
*gen_pool_dma_zalloc_algo(struct gen_pool *pool, size_t size,
cf394fc5f7155c Fredrik Noring 2019-06-25 164
dma_addr_t *dma, genpool_algo_t algo, void *data);
cf394fc5f7155c Fredrik Noring 2019-06-25 165 extern void
*gen_pool_dma_zalloc_align(struct gen_pool *pool, size_t size,
cf394fc5f7155c Fredrik Noring 2019-06-25 166
dma_addr_t *dma, int align);
795ee30648c708 Dan Williams 2019-06-13 167 extern void
gen_pool_free_owner(struct gen_pool *pool, unsigned long addr,
795ee30648c708 Dan Williams 2019-06-13 168
size_t size, void **owner);
795ee30648c708 Dan Williams 2019-06-13 169 static inline
void gen_pool_free(struct gen_pool *pool, unsigned long addr,
795ee30648c708 Dan Williams 2019-06-13 170
size_t size)
795ee30648c708 Dan Williams 2019-06-13 171 {
795ee30648c708 Dan Williams 2019-06-13 @172
gen_pool_free_owner(pool, addr, size, NULL);
795ee30648c708 Dan Williams 2019-06-13 173 }
795ee30648c708 Dan Williams 2019-06-13 174
:::::: The code at line 104 was first introduced by commit
:::::: 795ee30648c708502da9df637f83c33361d68dcc lib/genalloc: introduce chunk
owners
:::::: TO: Dan Williams <dan.j.willi...@intel.com>
:::::: CC: Linus Torvalds <torva...@linux-foundation.org>
---
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.config.gz
Description: application/gzip
