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| author | eadler <eadler@FreeBSD.org> | 2014-02-04 03:36:42 +0000 |
|---|---|---|
| committer | eadler <eadler@FreeBSD.org> | 2014-02-04 03:36:42 +0000 |
| commit | ec294fd7f5fc5de11ed889d6c2d701f918d1ecfb (patch) | |
| tree | 7e76e370b9406b0383b17bd343084addb4ad6a25 /sys/arm/xscale/ixp425 | |
| parent | d374d7f398b846dc59d8a5ec3c7bfb318cf880af (diff) | |
| download | FreeBSD-src-ec294fd7f5fc5de11ed889d6c2d701f918d1ecfb.zip FreeBSD-src-ec294fd7f5fc5de11ed889d6c2d701f918d1ecfb.tar.gz | |
MFC r258779,r258780,r258787,r258822:
Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this
shifts into the sign bit. Instead use (1U << 31) which gets the
expected result.
Similar to the (1 << 31) case it is not defined to do (2 << 30).
This fix is not ideal as it assumes a 32 bit int, but does fix the issue
for most cases.
A similar change was made in OpenBSD.
Diffstat (limited to 'sys/arm/xscale/ixp425')
| -rw-r--r-- | sys/arm/xscale/ixp425/ixp425reg.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/arm/xscale/ixp425/ixp425reg.h b/sys/arm/xscale/ixp425/ixp425reg.h index a0d1472..f353d44 100644 --- a/sys/arm/xscale/ixp425/ixp425reg.h +++ b/sys/arm/xscale/ixp425/ixp425reg.h @@ -400,7 +400,7 @@ #define EXP_CNFG0_PCI_HOST (1 << 1) #define EXP_CNFG0_PCI_ARB (1 << 2) #define EXP_CNFG0_PCI_66MHZ (1 << 4) -#define EXP_CNFG0_MEM_MAP (1 << 31) +#define EXP_CNFG0_MEM_MAP (1U << 31) /* EXP_CNFG1 bits */ #define EXP_CNFG1_SW_INT0 (1 << 0) |
