Recent changes to use the builtin min functions [1] introduced type checking which wasn't present before. This resulted in "comparision of distinct pointer types lacks a cast" build warnings on non X86 architectures [2,3].
[1]: https://lkml.org/lkml/2014/12/25/145 [2]: https://lists.01.org/pipermail/kbuild-all/2015-January/008588.html [3]: https://lists.01.org/pipermail/kbuild-all/2015-January/008589.html The call to min() which resulted in this warning took the result of kiblnd_rd_frag_size(), which returned a __u32, and the variable 'resid', which is an int. 'resid' is inside a while loop which is only entered if it is positive. Casting it as a __u32 can be perormed without a loss of data or change in functionality. Fix the warning by casting 'resid' as a __u32. Reported-by: kbuild test robot <fengguang...@intel.com> Signed-off-by: Jeremiah Mahler <jmmah...@gmail.com> --- Notes: - Resend to fix wrong From: address. drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index 74df2af..d2e5667 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -1126,7 +1126,8 @@ kiblnd_init_rdma (kib_conn_t *conn, kib_tx_t *tx, int type, } wrknob = min(min(kiblnd_rd_frag_size(srcrd, srcidx), - kiblnd_rd_frag_size(dstrd, dstidx)), resid); + kiblnd_rd_frag_size(dstrd, dstidx)), + (__u32) resid); sge = &tx->tx_sge[tx->tx_nwrq]; sge->addr = kiblnd_rd_frag_addr(srcrd, srcidx); -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
