11:08 a.m.
Hi "Matthew,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linux/master]
[also build test WARNING on linus/master v5.12-rc7]
[cannot apply to hnaz-linux-mm/master next-20210416]
[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]
url:
https://github.com/0day-ci/linux/commits/Matthew-Wilcox-Oracle/Change-str...
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
5e46d1b78a03d52306f21f77a4e4a144b6d31486
config: parisc-randconfig-s031-20210416 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
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: v0.6.3-280-g2cd6d34e-dirty
#
https://github.com/0day-ci/linux/commit/898e155048088be20b2606575a24108ea...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Matthew-Wilcox-Oracle/Change-struct-page-layout-for-page_pool/20210417-070951
git checkout 898e155048088be20b2606575a24108eacc4c91b
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=parisc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
In file included from net/core/xdp.c:15:
include/net/page_pool.h: In function 'page_pool_get_dma_addr':
> include/net/page_pool.h:203:40: warning: left shift count >=
width of type [-Wshift-count-overflow]
203 | ret |=
(dma_addr_t)page->dma_addr[1] << 32;
| ^~
include/net/page_pool.h: In function 'page_pool_set_dma_addr':
> include/net/page_pool.h:211:28: warning: right shift count >=
width of type [-Wshift-count-overflow]
211 | page->dma_addr[1] = addr
>> 32;
| ^~
vim +203 include/net/page_pool.h
198
199 static inline dma_addr_t page_pool_get_dma_addr(struct page *page)
200 {
201 dma_addr_t ret = page->dma_addr[0];
202 if (sizeof(dma_addr_t) > sizeof(unsigned long))
203 ret |= (dma_addr_t)page->dma_addr[1] << 32;
204 return ret;
205 }
206
207 static inline void page_pool_set_dma_addr(struct page *page, dma_addr_t addr)
208 {
209 page->dma_addr[0] = addr;
210 if (sizeof(dma_addr_t) > sizeof(unsigned long))
211 page->dma_addr[1] = addr >> 32;
212 }
213
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org