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To: "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
 Pavel Begunkov <asml.silence@gmail.com>, Jens Axboe <axboe@kernel.dk>
From: Christophe Leroy <christophe.leroy@c-s.fr>
Subject: Build failure on latest powerpc/merge (311ae9e159d8 io_uring: fix
 dead-hung for non-iter fixed rw)
Message-ID: <71cf82d5-5986-43b7-cf1c-acba429a89d6@c-s.fr>
Date: Fri, 29 Nov 2019 14:53:10 +0000
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   CC      fs/io_uring.o
fs/io_uring.c: In function ‘loop_rw_iter’:
fs/io_uring.c:1628:21: error: implicit declaration of function ‘kmap’ 
[-Werror=implicit-function-declaration]
     iovec.iov_base = kmap(iter->bvec->bv_page)
                      ^
fs/io_uring.c:1628:19: warning: assignment makes pointer from integer 
without a cast [-Wint-conversion]
     iovec.iov_base = kmap(iter->bvec->bv_page)
                    ^
fs/io_uring.c:1643:4: error: implicit declaration of function ‘kunmap’ 
[-Werror=implicit-function-declaration]
     kunmap(iter->bvec->bv_page);
     ^


Reverting commit 311ae9e159d8 ("io_uring: fix dead-hung for non-iter 
fixed rw") clears the failure.

Most likely an #include is missing.


Christophe