diff options
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2013-10-01 16:54:05 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-13 18:14:28 -0700 |
| commit | 698dc640e9dc5722d8ce4bf34524986ef5236390 (patch) | |
| tree | 211163a8307919680301e443c170b4cf16a2e3e8 /mm | |
| parent | 6de61dfab8587ebe36be11150496ca76e1915e7e (diff) | |
powerpc: Fix parameter clobber in csum_partial_copy_generic()
commit d9813c3681a36774b254c0cdc9cce53c9e22c756 upstream.
The csum_partial_copy_generic() uses register r7 to adjust the remaining
bytes to process. Unfortunately, r7 also holds a parameter, namely the
address of the flag to set in case of access exceptions while reading
the source buffer. Lacking a quantum implementation of PowerPC, this
commit instead uses register r9 to do the adjusting, leaving r7's
pointer uncorrupted.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions