[SPARC]: Fix _IOC_SIZE() macro when direction is _IOC_NONE.

28da9dc4 · Eric Brower · David S. Miller · a7fa6cb1 · 28da9dc4 · 28da9dc4
Commit 28da9dc4 authored Oct 28, 2003 by Eric Brower Committed by David S. Miller Oct 28, 2003
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Showing with 6 additions and 2 deletions

include/asm-sparc/ioctl.h include/asm-sparc/ioctl.h +3 -1

include/asm-sparc64/ioctl.h include/asm-sparc64/ioctl.h +3 -1

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--- a/include/asm-sparc/ioctl.h
+++ b/include/asm-sparc/ioctl.h
@@ -54,7 +54,9 @@
                            (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) )
 #define _IOC_TYPE(nr)       (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
 #define _IOC_NR(nr)         (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
-#define _IOC_SIZE(nr)       (((nr) >> _IOC_SIZESHIFT) & _IOC_XSIZEMASK)
+#define _IOC_SIZE(nr)   \
+ ((((((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) & (_IOC_WRITE|_IOC_READ)) == 0)?    \
+                         0: (((nr) >> _IOC_SIZESHIFT) & _IOC_XSIZEMASK))
 /* ...and for the PCMCIA and sound. */
 #define IOC_IN          (_IOC_WRITE << _IOC_DIRSHIFT)

--- a/include/asm-sparc64/ioctl.h
+++ b/include/asm-sparc64/ioctl.h
@@ -54,7 +54,9 @@
                            (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) )
 #define _IOC_TYPE(nr)       (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
 #define _IOC_NR(nr)         (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
-#define _IOC_SIZE(nr)       (((nr) >> _IOC_SIZESHIFT) & _IOC_XSIZEMASK)
+#define _IOC_SIZE(nr)   \
+ ((((((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) & (_IOC_WRITE|_IOC_READ)) == 0)?    \
+                         0: (((nr) >> _IOC_SIZESHIFT) & _IOC_XSIZEMASK))
 /* ...and for the PCMCIA and sound. */
 #define IOC_IN          (_IOC_WRITE << _IOC_DIRSHIFT)