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    SubjectRe: linux-next: build failure after merge of the v9fs tree
    On 2/21/2011 9:30 PM, Stephen Rothwell wrote:
    > Hi,
    >
    > On Mon, 21 Feb 2011 21:20:31 -0800 "Venkateswararao Jujjuri (JV)" <jvrao@linux.vnet.ibm.com> wrote:
    >>
    >> On 2/21/2011 4:53 PM, Stephen Rothwell wrote:
    >>>
    >>> After merging the v9fs tree, today's linux-next build (x86_64
    >>> allmodconfig) failed like this:
    >>>
    >>> ERROR: "p9_payload_gup" [net/9p/9pnet_virtio.ko] undefined!
    >>> ERROR: "p9_nr_pages" [net/9p/9pnet_virtio.ko] undefined!
    >>> ERROR: "p9_release_req_pages" [net/9p/9pnet_virtio.ko] undefined!
    >>
    >> These functions are defined by commit 249951bf66816128a7698caa826425e299494c82
    >> ([net/9p] Preparation and helper functions for zero copy)
    >
    > Yes, they are - but they are not exported to modules.

    Thanks; Can you please check if this patch fixes your issue?

    diff --git a/net/9p/trans_common.c b/net/9p/trans_common.c
    index ca705f1..da7c2cd 100644
    --- a/net/9p/trans_common.c
    +++ b/net/9p/trans_common.c
    @@ -13,6 +13,7 @@
    */

    #include <linux/slab.h>
    + #include <linux/module.h>
    #include <net/9p/9p.h>
    #include <net/9p/client.h>
    #include <linux/scatterlist.h>
    @@ -32,6 +33,7 @@ p9_release_req_pages(struct trans_rpage_info *rpinfo)
    i++;
    }
    }
    +EXPORT_SYMBOL(p9_release_req_pages);

    /**
    * p9_nr_pages - Return number of pages needed to accomodate the payload.
    @@ -45,6 +47,7 @@ p9_nr_pages(struct p9_req_t *req)
    PAGE_SIZE - 1) >> PAGE_SHIFT;
    return end_page - start_page;
    }
    +EXPORT_SYMBOL(p9_nr_pages);

    /**
    * payload_gup - Translates user buffer into kernel pages and
    @@ -91,3 +94,4 @@ p9_payload_gup(struct p9_req_t *req, size_t *pdata_off, int *p
    }
    return 0;
    }
    +EXPORT_SYMBOL(p9_payload_gup);




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