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Message-Id: <20180830142718.10850-1-colin.king@canonical.com> Date: Thu, 30 Aug 2018 15:27:18 +0100 From: Colin King <colin.king@...onical.com> To: "David S . Miller" <davem@...emloft.net>, Björn Töpel <bjorn.topel@...el.com>, Jesper Dangaard Brouer <brouer@...hat.com>, netdev@...r.kernel.org Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH][net-next] xdp: remove redundant variable 'headroom' From: Colin Ian King <colin.king@...onical.com> Variable 'headroom' is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: variable ‘headroom’ set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King <colin.king@...onical.com> --- net/core/xdp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/core/xdp.c b/net/core/xdp.c index 654dbb19707e..4b2b194f4f1f 100644 --- a/net/core/xdp.c +++ b/net/core/xdp.c @@ -412,7 +412,7 @@ EXPORT_SYMBOL_GPL(xdp_attachment_setup); struct xdp_frame *xdp_convert_zc_to_xdp_frame(struct xdp_buff *xdp) { - unsigned int metasize, headroom, totsize; + unsigned int metasize, totsize; void *addr, *data_to_copy; struct xdp_frame *xdpf; struct page *page; @@ -420,7 +420,6 @@ struct xdp_frame *xdp_convert_zc_to_xdp_frame(struct xdp_buff *xdp) /* Clone into a MEM_TYPE_PAGE_ORDER0 xdp_frame. */ metasize = xdp_data_meta_unsupported(xdp) ? 0 : xdp->data - xdp->data_meta; - headroom = xdp->data - xdp->data_hard_start; totsize = xdp->data_end - xdp->data + metasize; if (sizeof(*xdpf) + totsize > PAGE_SIZE) -- 2.17.1
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