diff options
| author | Corey Minyard <minyard@acm.org> | 2005-05-01 17:59:10 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-01 17:59:10 +0200 |
| commit | 9206880198589670dfc33feb9d2e903c3492701f (patch) | |
| tree | 3c9c15a6bca7c365fb64660cec4734b7cd3d1d3a /drivers/char | |
| parent | [PATCH] dontdiff file sorted in alphabet order (diff) | |
| download | linux-9206880198589670dfc33feb9d2e903c3492701f.tar.xz linux-9206880198589670dfc33feb9d2e903c3492701f.zip | |
[PATCH] IPMI: fix for handling bad IPMI DMI data
Ignore the bottom bit of the base address from the DMI data. It is
supposed to be set to 1 if it is I/O space. Few systems do this, but this
enables the ones that do set it to work properly.
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_intf.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 44a7f13c788b..3522723eb6b8 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -1623,7 +1623,13 @@ static int decode_dmi(dmi_header_t *dm, int intf_num) } } else { /* Old DMI spec. */ - ipmi_data->base_addr = base_addr; + /* Note that technically, the lower bit of the base + * address should be 1 if the address is I/O and 0 if + * the address is in memory. So many systems get that + * wrong (and all that I have seen are I/O) so we just + * ignore that bit and assume I/O. Systems that use + * memory should use the newer spec, anyway. */ + ipmi_data->base_addr = base_addr & 0xfffe; ipmi_data->addr_space = IPMI_IO_ADDR_SPACE; ipmi_data->offset = 1; } |