diff options
| author | Douglas Thompson <dougthompson@xmission.com> | 2007-07-19 01:49:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-19 10:04:53 -0700 |
| commit | 5da0831c598f94582bce6bb0a55b8de2f9897cb1 (patch) | |
| tree | 463ccd5d3c6c83eac8562610567c5f8bfede6a45 /drivers | |
| parent | 8ca47e00690914a9e5e6c734baa37c829a2f2fa1 (diff) | |
| download | linux-5da0831c598f94582bce6bb0a55b8de2f9897cb1.tar.bz2 | |
drivers/edac: add edac_mc_find API
This simple patch adds an important CORE API for EDAC that EDAC drivers can
use to find their edac_mc control structure by passing a mem_ctl_info
'instance' value
Needed for subsequent patches
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/edac/edac_mc.c | 28 | ||||
| -rw-r--r-- | drivers/edac/edac_mc.h | 1 |
2 files changed, 29 insertions, 0 deletions
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 804875de5801..c1a8bf2bfa57 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -1457,6 +1457,34 @@ static void del_mc_from_global_list(struct mem_ctl_info *mci) } /** + * edac_mc_find: Search for a mem_ctl_info structure whose index is 'idx'. + * + * If found, return a pointer to the structure. + * Else return NULL. + * + * Caller must hold mem_ctls_mutex. + */ +struct mem_ctl_info * edac_mc_find(int idx) +{ + struct list_head *item; + struct mem_ctl_info *mci; + + list_for_each(item, &mc_devices) { + mci = list_entry(item, struct mem_ctl_info, link); + + if (mci->mc_idx >= idx) { + if (mci->mc_idx == idx) + return mci; + + break; + } + } + + return NULL; +} +EXPORT_SYMBOL(edac_mc_find); + +/** * edac_mc_add_mc: Insert the 'mci' structure into the mci global list and * create sysfs entries associated with mci structure * @mci: pointer to the mci structure to be added to the list diff --git a/drivers/edac/edac_mc.h b/drivers/edac/edac_mc.h index 713444cc4105..9ad8a20a8de5 100644 --- a/drivers/edac/edac_mc.h +++ b/drivers/edac/edac_mc.h @@ -430,6 +430,7 @@ void edac_mc_dump_mci(struct mem_ctl_info *mci); void edac_mc_dump_csrow(struct csrow_info *csrow); #endif /* CONFIG_EDAC_DEBUG */ +extern struct mem_ctl_info * edac_mc_find(int idx); extern int edac_mc_add_mc(struct mem_ctl_info *mci,int mc_idx); extern struct mem_ctl_info * edac_mc_del_mc(struct device *dev); extern int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci, |