summaryrefslogtreecommitdiffstats
path: root/samples
diff options
context:
space:
mode:
authorGeert Uytterhoeven <geert@linux-m68k.org>2013-07-26 00:08:25 +0200
committerGeert Uytterhoeven <geert@linux-m68k.org>2013-08-14 11:46:30 +0200
commite8184e10f89736a23ea6eea8e24cd524c5c513d2 (patch)
treeebad6db137be91c88259ca21de265fd520126256 /samples
parentd4e4ab86bcba5a72779c43dc1459f71fea3d89c8 (diff)
downloadop-kernel-dev-e8184e10f89736a23ea6eea8e24cd524c5c513d2.zip
op-kernel-dev-e8184e10f89736a23ea6eea8e24cd524c5c513d2.tar.gz
m68k/atari: ARAnyM - Fix NatFeat module support
As pointed out by Andreas Schwab, pointers passed to ARAnyM NatFeat calls should be physical addresses, not virtual addresses. Fortunately on Atari, physical and virtual kernel addresses are the same, as long as normal kernel memory is concerned, so this usually worked fine without conversion. But for modules, pointers to literal strings are located in vmalloc()ed memory. Depending on the version of ARAnyM, this causes the nf_get_id() call to just fail, or worse, crash ARAnyM itself with e.g. Gotcha! Illegal memory access. Atari PC = $968c This is a big issue for distro kernels, who want to have all drivers as loadable modules in an initrd. Add a wrapper for nf_get_id() that copies the literal to the stack to work around this issue. Reported-by: Thorsten Glaser <tg@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: stable@vger.kernel.org
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud