From bd8c8ade6b6f109bc3dce14a8d12013f27f2a590 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Thu, 24 Mar 2011 23:14:46 +0530
Subject: [PATCH] 9p: Fix sparse error
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
---
net/9p/protocol.c | 3 ++-
net/9p/trans_common.c | 2 +-
net/9p/trans_virtio.c | 15 +++++++++++----
3 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index 8a4084fa8b5a..a7e899740041 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -468,7 +468,8 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt,
case 'E':{
int32_t cnt = va_arg(ap, int32_t);
const char *k = va_arg(ap, const void *);
- const char *u = va_arg(ap, const void *);
+ const char __user *u = va_arg(ap,
+ const void __user *);
errcode = p9pdu_writef(pdu, proto_version, "d",
cnt);
if (!errcode && pdu_write_urw(pdu, k, u, cnt))
diff --git a/net/9p/trans_common.c b/net/9p/trans_common.c
index d47880e971dd..e883172f9aa2 100644
--- a/net/9p/trans_common.c
+++ b/net/9p/trans_common.c
@@ -66,7 +66,7 @@ p9_payload_gup(struct p9_req_t *req, size_t *pdata_off, int *pdata_len,
uint32_t pdata_mapped_pages;
struct trans_rpage_info *rpinfo;
- *pdata_off = (size_t)req->tc->pubuf & (PAGE_SIZE-1);
+ *pdata_off = (__force size_t)req->tc->pubuf & (PAGE_SIZE-1);
if (*pdata_off)
first_page_bytes = min(((size_t)PAGE_SIZE - *pdata_off),
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index e8f046b07182..244e70742183 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -326,8 +326,11 @@ req_retry_pinned:
outp = pack_sg_list_p(chan->sg, out, VIRTQUEUE_NUM,
pdata_off, rpinfo->rp_data, pdata_len);
} else {
- char *pbuf = req->tc->pubuf ? req->tc->pubuf :
- req->tc->pkbuf;
+ char *pbuf;
+ if (req->tc->pubuf)
+ pbuf = (__force char *) req->tc->pubuf;
+ else
+ pbuf = req->tc->pkbuf;
outp = pack_sg_list(chan->sg, out, VIRTQUEUE_NUM, pbuf,
req->tc->pbuf_size);
}
@@ -352,8 +355,12 @@ req_retry_pinned:
in = pack_sg_list_p(chan->sg, out+inp, VIRTQUEUE_NUM,
pdata_off, rpinfo->rp_data, pdata_len);
} else {
- char *pbuf = req->tc->pubuf ? req->tc->pubuf :
- req->tc->pkbuf;
+ char *pbuf;
+ if (req->tc->pubuf)
+ pbuf = (__force char *) req->tc->pubuf;
+ else
+ pbuf = req->tc->pkbuf;
+
in = pack_sg_list(chan->sg, out+inp, VIRTQUEUE_NUM,
pbuf, req->tc->pbuf_size);
}
--
2.20.1