lkml.org 
[lkml]   [2020]   [Dec]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subjectdrivers/media/pci/intel/ipu3/ipu3-cio2.h:22:28: warning: conversion from 'long unsigned int' to 'u16' {aka 'short unsigned int'} changes value from '131072' to '0'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: dea8dcf2a9fa8cc540136a6cd885c3beece16ec3
commit: 7b285f41f7376dc37e7fad1e803995fd39f42848 media: ipu3-cio2: Introduce CIO2_LOP_ENTRIES constant
date: 4 months ago
config: ia64-randconfig-r014-20201221 (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7b285f41f7376dc37e7fad1e803995fd39f42848
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 7b285f41f7376dc37e7fad1e803995fd39f42848
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

In file included from drivers/media/pci/intel/ipu3/ipu3-cio2.c:29:
drivers/media/pci/intel/ipu3/ipu3-cio2.c: In function 'cio2_fbpt_entry_init_dummy':
>> drivers/media/pci/intel/ipu3/ipu3-cio2.h:22:28: warning: conversion from 'long unsigned int' to 'u16' {aka 'short unsigned int'} changes value from '131072' to '0' [-Woverflow]
22 | #define CIO2_LOP_ENTRIES (PAGE_SIZE / sizeof(u32))
| ^
drivers/media/pci/intel/ipu3/ipu3-cio2.c:163:39: note: in expansion of macro 'CIO2_LOP_ENTRIES'
163 | entry[1].second_entry.num_of_pages = CIO2_LOP_ENTRIES * CIO2_MAX_LOPS;
| ^~~~~~~~~~~~~~~~


vim +22 drivers/media/pci/intel/ipu3/ipu3-cio2.h

18
19 /* 32MB = 8xFBPT_entry */
20 #define CIO2_MAX_LOPS 8
21 #define CIO2_MAX_BUFFERS (PAGE_SIZE / 16 / CIO2_MAX_LOPS)
> 22 #define CIO2_LOP_ENTRIES (PAGE_SIZE / sizeof(u32))
23

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[unhandled content-type:application/gzip]
\
 
 \ /
  Last update: 2020-12-29 05:43    [W:0.066 / U:1.036 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site