sh: migrate to arch/sh/include/

2008-07-28T23:09:44Z

This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: Sam Ravnborg Signed-off-by: Paul Mundt

sh: fix miscompilation of ip_fast_csum with gcc >= 4.3

2008-06-02T03:40:14Z

As noted by Matthew Wilcox: Kyle McMartin just tracked down a bug on parisc to a missing "memory" clobber in the inline assembly implementation of ip_fast_csum. The FRV, SH and Xtensa ports are also missing a memory clobber, so I thought it would be polite to let you know. The bug manifests as dropped network packets (obviously they have the wrong checksum). It started appearing for parisc with GCC 4.3. The GCC manual says: If your assembler instructions access memory in an unpredictable fashion, add `memory' to the list of clobbered registers. This will cause GCC to not keep memory values cached in registers across the assembler instruction and not optimize stores or loads to that memory. I see that FRV has a 400 byte memory output which may prevent this problem from appearing, but SH and Xtensa have nothing to prevent this bug. Hope this saves you a few days of debugging. Signed-off-by: Paul Mundt

sh: Split out checksum.h in to _32 and _64 variants.

2008-01-28T04:18:45Z

Signed-off-by: Paul Mundt

linux-dev/include/asm-sh/checksum_32.h, branch master

sh: migrate to arch/sh/include/

sh: fix miscompilation of ip_fast_csum with gcc >= 4.3

sh: Split out checksum.h in to _32 and _64 variants.