On Thu, Aug 29, 2013 at 08:09:24PM +0200, dl9pf@xxxxxx wrote: > From: Jan-Simon Möller <dl9pf@xxxxxx> > > v2: Fix bug in statement as pointed out by Herbert Xu. Kudos to pipacs. > > Author: PaX Team <pageexec at freemail.hu> > ML-Post: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20120507/142707.html > URL: http://llvm.linuxfoundation.org > > Merge: Jan-Simon Möller <dl9pf at gmx.de> > > Description: > > Fix for warning: > linux/crypto/fcrypt.c:143:47: warning: signed shift result (0x598000000) requires 36 bits to > represent, but 'int' only has 32 bits [-Wshift-overflow] > Z(0xef), Z(0x70), Z(0xcf), Z(0xc2), Z(0x2a), Z(0xb3), Z(0x61), Z(0xad), > ^~~~~~~ > linux/crypto/fcrypt.c:113:29: note: expanded from macro 'Z' > ^ ~~ > linux/include/uapi/linux/byteorder/little_endian.h:38:53: note: expanded from macro > '__cpu_to_be32' > ^ > linux/include/uapi/linux/swab.h:116:21: note: expanded from macro '__swab32' > ___constant_swab32(x) : \ > ^ > linux/include/uapi/linux/swab.h:18:12: note: expanded from macro '___constant_swab32' > (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \ > ^ > > Solution - make sure we don't exceed the 32 bit range. > #define Z(x) cpu_to_be32(((x & 0x1f) << 27) | (x >> 5)) > > Signed-off-by: Jan-Simon Möller <dl9pf@xxxxxx> Patch applied. -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
