提交 f112be65 编写于 作者: A Arnd Bergmann 提交者: David S. Miller

xen-netback: fix type mismatch warning

Wiht the latest rework of the xen-netback driver, we get a warning
on ARM about the types passed into min():

drivers/net/xen-netback/rx.c: In function 'xenvif_rx_next_chunk':
include/linux/kernel.h:739:16: error: comparison of distinct pointer types lacks a cast [-Werror]

The reason is that XEN_PAGE_SIZE is not size_t here. There
is no actual bug, and we can easily avoid the warning using the
min_t() macro instead of min().

Fixes: eb1723a2 ("xen-netback: refactor guest rx")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NPaul Durrant <paul.durrant@citrix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 7086605a
......@@ -337,9 +337,9 @@ static void xenvif_rx_next_chunk(struct xenvif_queue *queue,
frag_data += pkt->frag_offset;
frag_len -= pkt->frag_offset;
chunk_len = min(frag_len, XEN_PAGE_SIZE - offset);
chunk_len = min(chunk_len,
XEN_PAGE_SIZE - xen_offset_in_page(frag_data));
chunk_len = min_t(size_t, frag_len, XEN_PAGE_SIZE - offset);
chunk_len = min_t(size_t, chunk_len, XEN_PAGE_SIZE -
xen_offset_in_page(frag_data));
pkt->frag_offset += chunk_len;
......
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