Hi Stephen, [auto build test WARNING on linus/master] [also build test WARNING on v4.11-rc2 next-20170310] [cannot apply to glikely/devicetree/next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Stephen-Boyd/of-Mark-property-value-as-const/20170317-143414 config: sparc64-allmodconfig (attached as .config) compiler: sparc64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=sparc64 All warnings (new ones prefixed by >>): fs/openpromfs/inode.c: In function 'property_show': >> fs/openpromfs/inode.c:74:16: warning: passing argument 1 of 'is_string' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] if (is_string(pval, len)) { ^~~~ fs/openpromfs/inode.c:48:12: note: expected 'unsigned char *' but argument is of type 'const void *' static int is_string(unsigned char *p, int len) ^~~~~~~~~ vim +74 fs/openpromfs/inode.c ^1da177e Linus Torvalds 2005-04-16 58 3d824a46 David S. Miller 2006-06-25 59 return 0; ^1da177e Linus Torvalds 2005-04-16 60 } ^1da177e Linus Torvalds 2005-04-16 61 3d824a46 David S. Miller 2006-06-25 62 return 1; 3d824a46 David S. Miller 2006-06-25 63 } ^1da177e Linus Torvalds 2005-04-16 64 3d824a46 David S. Miller 2006-06-25 65 static int property_show(struct seq_file *f, void *v) 3d824a46 David S. Miller 2006-06-25 66 { 3d824a46 David S. Miller 2006-06-25 67 struct property *prop = f->private; 755d4871 Stephen Boyd 2017-03-14 68 const void *pval; 3d824a46 David S. Miller 2006-06-25 69 int len; ^1da177e Linus Torvalds 2005-04-16 70 3d824a46 David S. Miller 2006-06-25 71 len = prop->length; 3d824a46 David S. Miller 2006-06-25 72 pval = prop->value; ^1da177e Linus Torvalds 2005-04-16 73 3d824a46 David S. Miller 2006-06-25 @74 if (is_string(pval, len)) { 3d824a46 David S. Miller 2006-06-25 75 while (len > 0) { 3d824a46 David S. Miller 2006-06-25 76 int n = strlen(pval); ^1da177e Linus Torvalds 2005-04-16 77 3d824a46 David S. Miller 2006-06-25 78 seq_printf(f, "%s", (char *) pval); ^1da177e Linus Torvalds 2005-04-16 79 3d824a46 David S. Miller 2006-06-25 80 /* Skip over the NULL byte too. */ 3d824a46 David S. Miller 2006-06-25 81 pval += n + 1; 3d824a46 David S. Miller 2006-06-25 82 len -= n + 1; :::::: The code at line 74 was first introduced by commit :::::: 3d824a46b7210ea3b0a13ab0d0fbd7f6e2e91ddf [OPENPROMFS]: Rewrite using in-kernel device tree and seq_file. :::::: TO: David S. Miller <davem@xxxxxxxxxxxxx> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
Attachment:
.config.gz
Description: application/gzip
