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aoe: update and specify AoE address guards and error messages

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In general, specific is better when it comes to messages about AoE usage
problems.  Also, explicit checks for the AoE broadcast addresses are
added.

Signed-off-by: Ed Cashin <ecashin@coraid.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ed Cashin 2012-10-04 17:16:44 -07:00 committed by Linus Torvalds
parent 4bcce1a355
commit 7159e969d1
2 changed files with 11 additions and 8 deletions
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2
drivers/block/aoe/aoe.h
View file

@ -49,8 +49,6 @@ struct aoe_hdr {
__be32 tag;
};
#define AOE_MAXSHELF (0xffff-1) /* one less than the broadcast shelf address */
struct aoe_atahdr {
unsigned char aflags;
unsigned char errfeat;

17
drivers/block/aoe/aoecmd.c
View file

@ -1349,15 +1349,14 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
"Check shelf dip switches.\n");
return;
}
if (aoemajor > AOE_MAXSHELF) {
pr_info("aoe: e%ld.%d: shelf number too large\n",
if (aoemajor == 0xffff) {
pr_info("aoe: e%ld.%d: broadcast shelf number invalid\n",
aoemajor, (int) h->minor);
return;
}
d = aoedev_by_aoeaddr(aoemajor, h->minor, 1);
if (d == NULL) {
pr_info("aoe: device allocation failure\n");
if (h->minor == 0xff) {
pr_info("aoe: e%ld.%d: broadcast slot number invalid\n",
aoemajor, (int) h->minor);
return;
}
@ -1365,6 +1364,12 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
if (n > aoe_maxout) /* keep it reasonable */
n = aoe_maxout;
d = aoedev_by_aoeaddr(aoemajor, h->minor, 1);
if (d == NULL) {
pr_info("aoe: device allocation failure\n");
return;
}
spin_lock_irqsave(&d->lock, flags);
t = gettgt(d, h->src);