diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-25 15:59:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-25 15:59:38 -0700 |
| commit | fa2af6e4fe0c4d2f8875d42625b25675e8584010 (patch) | |
| tree | ef9a92949858ab763aa1bfda7cb11a5f7b84d123 /arch/tile/kernel/single_step.c | |
| parent | 109b9b0408e5f1dd327a44f446841a9fbe0bcd83 (diff) | |
| parent | 1fcb78e9da714d96f65edd37b29dae3b1f7df508 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull tile updates from Chris Metcalf:
"These changes cover a range of new arch/tile features and
optimizations. They've been through LKML review and on linux-next for
a month or so. There's also one bug-fix that just missed 3.4, which
I've marked for stable."
Fixed up trivial conflict in arch/tile/Kconfig (new added tile Kconfig
entries clashing with the generic timer/clockevents changes).
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
tile: default to tilegx_defconfig for ARCH=tile
tile: fix bug where fls(0) was not returning 0
arch/tile: mark TILEGX as not EXPERIMENTAL
tile/mm/fault.c: Port OOM changes to handle_page_fault
arch/tile: add descriptive text if the kernel reports a bad trap
arch/tile: allow querying cpu module information from the hypervisor
arch/tile: fix hardwall for tilegx and generalize for idn and ipi
arch/tile: support multiple huge page sizes dynamically
mm: add new arch_make_huge_pte() method for tile support
arch/tile: support kexec() for tilegx
arch/tile: support <asm/cachectl.h> header for cacheflush() syscall
arch/tile: Allow tilegx to build with either 16K or 64K page size
arch/tile: optimize get_user/put_user and friends
arch/tile: support building big-endian kernel
arch/tile: allow building Linux with transparent huge pages enabled
arch/tile: use interrupt critical sections less
Diffstat (limited to 'arch/tile/kernel/single_step.c')
| -rw-r--r-- | arch/tile/kernel/single_step.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/tile/kernel/single_step.c b/arch/tile/kernel/single_step.c index 89529c9f060..27742e87e25 100644 --- a/arch/tile/kernel/single_step.c +++ b/arch/tile/kernel/single_step.c @@ -172,9 +172,6 @@ static tile_bundle_bits rewrite_load_store_unaligned( return (tilepro_bundle_bits) 0; } -#ifndef __LITTLE_ENDIAN -# error We assume little-endian representation with copy_xx_user size 2 here -#endif /* Handle unaligned load/store */ if (mem_op == MEMOP_LOAD || mem_op == MEMOP_LOAD_POSTINCR) { unsigned short val_16; @@ -195,8 +192,19 @@ static tile_bundle_bits rewrite_load_store_unaligned( state->update = 1; } } else { + unsigned short val_16; val = (val_reg == TREG_ZERO) ? 0 : regs->regs[val_reg]; - err = copy_to_user(addr, &val, size); + switch (size) { + case 2: + val_16 = val; + err = copy_to_user(addr, &val_16, sizeof(val_16)); + break; + case 4: + err = copy_to_user(addr, &val, sizeof(val)); + break; + default: + BUG(); + } } if (err) { |