On Fri, Jan 03, 2014 at 01:35:52PM +0000, Stefano Stabellini wrote:
> On Tue, 31 Dec 2013, Konrad Rzeszutek Wilk wrote:
> > There is no need for that so lets use ratelimiting.
> > Also add some extra information to be helpful.
> >
> > CC: Stefano Stabellini <stefano.stabell...@eu.citrix.com>
> > Signed-off-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
>
> lib/swiotlb.c: In function 'swiotlb_tbl_map_single':
> lib/swiotlb.c:509:3: warning: format '%ld' expects argument of type 'long
> int', but argument 3 has type 'size_t' [-Wformat=]
>
How about this:
>From c83a2ab5d5fbc502b4165262a2983c2ad646f061 Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Date: Mon, 16 Dec 2013 14:05:01 -0500
Subject: [PATCH] swiotlb: Don't DoS us with 'swiotlb buffer is full' (v2)
There is no need for that so lets use ratelimiting.
Also add some extra information to be helpful.
CC: Stefano Stabellini <stefano.stabell...@eu.citrix.com>
[v2: s/ld/zs on the printk]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
---
lib/swiotlb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index e4399fa..4634ac9 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -505,7 +505,8 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
not_found:
spin_unlock_irqrestore(&io_tlb_lock, flags);
- dev_warn(hwdev, "swiotlb buffer is full\n");
+ if (printk_ratelimit())
+ dev_warn(hwdev, "swiotlb buffer is full (sz: %zd bytes)\n",
size);
return SWIOTLB_MAP_ERROR;
found:
spin_unlock_irqrestore(&io_tlb_lock, flags);
--
1.8.3.1
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