[PATCH AUTOSEL 5.4 080/205] libbpf: Don't use kernel-side u32 type in xsk.c
From: Sasha Levin <sashal@kernel.org>
Date: 2020-01-16 16:49:17
Also in:
bpf, lkml, stable
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [library] (libbpf), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
From: Andrii Nakryiko <redacted>
[ Upstream commit a566e35f1e8b4b3be1e96a804d1cca38b578167c ]
u32 is a kernel-side typedef. User-space library is supposed to use __u32.
This breaks Github's projection of libbpf. Do u32 -> __u32 fix.
Fixes: 94ff9ebb49a5 ("libbpf: Fix compatibility for kernels without need_wakeup")
Signed-off-by: Andrii Nakryiko <redacted>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Björn Töpel <redacted>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/20191029055953.2461336-1-andriin@fb.com (local)
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/lib/bpf/xsk.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/lib/bpf/xsk.c b/tools/lib/bpf/xsk.c
index b29d37fba2b0..0c7386b0e42e 100644
--- a/tools/lib/bpf/xsk.c
+++ b/tools/lib/bpf/xsk.c@@ -161,22 +161,22 @@ static void xsk_mmap_offsets_v1(struct xdp_mmap_offsets *off) off->rx.producer = off_v1.rx.producer; off->rx.consumer = off_v1.rx.consumer; off->rx.desc = off_v1.rx.desc; - off->rx.flags = off_v1.rx.consumer + sizeof(u32); + off->rx.flags = off_v1.rx.consumer + sizeof(__u32); off->tx.producer = off_v1.tx.producer; off->tx.consumer = off_v1.tx.consumer; off->tx.desc = off_v1.tx.desc; - off->tx.flags = off_v1.tx.consumer + sizeof(u32); + off->tx.flags = off_v1.tx.consumer + sizeof(__u32); off->fr.producer = off_v1.fr.producer; off->fr.consumer = off_v1.fr.consumer; off->fr.desc = off_v1.fr.desc; - off->fr.flags = off_v1.fr.consumer + sizeof(u32); + off->fr.flags = off_v1.fr.consumer + sizeof(__u32); off->cr.producer = off_v1.cr.producer; off->cr.consumer = off_v1.cr.consumer; off->cr.desc = off_v1.cr.desc; - off->cr.flags = off_v1.cr.consumer + sizeof(u32); + off->cr.flags = off_v1.cr.consumer + sizeof(__u32); } static int xsk_get_mmap_offsets(int fd, struct xdp_mmap_offsets *off)
--
2.20.1