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author | Alex Chiang <achiang@hp.com> | 2008-08-21 15:13:47 -0600 |
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committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-08-21 15:15:31 -0700 |
commit | d6a9e9b40be7da84f82eb414c2ad98c5bb69986b (patch) | |
tree | 28737d4feaa4b16f63b498229ae13653947f7b36 /block/blk.h | |
parent | 167e782e301188c7c7e31e486bbeea5f918324c1 (diff) | |
download | linux-3.10-d6a9e9b40be7da84f82eb414c2ad98c5bb69986b.tar.gz linux-3.10-d6a9e9b40be7da84f82eb414c2ad98c5bb69986b.tar.bz2 linux-3.10-d6a9e9b40be7da84f82eb414c2ad98c5bb69986b.zip |
PCI: shpchp: Rename duplicate slot name N as N-1, N-2, N-M...
Commit ef0ff95f136f0f2d035667af5d18b824609de320 (shpchp: fix slot name)
introduces the shpchp_slot_with_bus module parameter, which was intended
to help work around broken firmware that assigns the same name to multiple
slots.
Commit b3bd307c628af2f0a581c42d5d7e4bcdbbf64b6a (shpchp: add message about
shpchp_slot_with_bus option) tells the user to use the above parameter
in the event of a name collision.
This approach is sub-optimal because it requires too much work from
the user.
Instead, let's rename the slot on behalf of the user. If firmware
assigns the name N to multiple slots, then:
The first registered slot is assigned N
The second registered slot is assigned N-1
The third registered slot is assigned N-2
The Mth registered slot becomes N-M
In the event we overflow the slot->name parameter, we report an
error to the user.
This is a temporary fix until the entire PCI core can be reworked
such that individual drivers no longer have to manage their own
slot names.
Tested-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'block/blk.h')
0 files changed, 0 insertions, 0 deletions