From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "Andrii Nakryiko" <andriin@fb.com>,
"Alexei Starovoitov" <ast@kernel.org>,
"Björn Töpel" <bjorn.topel@intel.com>,
"Magnus Karlsson" <magnus.karlsson@intel.com>,
"Sasha Levin" <sashal@kernel.org>,
netdev@vger.kernel.org, bpf@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 080/205] libbpf: Don't use kernel-side u32 type in xsk.c
Date: Thu, 16 Jan 2020 11:40:55 -0500
Message-ID: <20200116164300.6705-80-sashal@kernel.org> (raw)
In-Reply-To: <20200116164300.6705-1-sashal@kernel.org>
From: Andrii Nakryiko <andriin@fb.com>
[ 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 <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/20191029055953.2461336-1-andriin@fb.com
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
next prev parent reply index
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200116164300.6705-1-sashal@kernel.org>
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 049/205] net: netsec: Correct dma sync for XDP_TX frames Sasha Levin
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 077/205] libbpf: Fix compatibility for kernels without need_wakeup Sasha Levin
2020-01-16 16:40 ` Sasha Levin [this message]
2020-01-16 16:41 ` [PATCH AUTOSEL 5.4 111/205] libbpf: Fix memory leak/double free issue Sasha Levin
2020-01-16 16:41 ` [PATCH AUTOSEL 5.4 112/205] libbpf: Fix potential overflow issue Sasha Levin
2020-01-16 16:41 ` [PATCH AUTOSEL 5.4 113/205] libbpf: Fix another potential overflow issue in bpf_prog_linfo Sasha Levin
2020-01-16 16:41 ` [PATCH AUTOSEL 5.4 114/205] libbpf: Make btf__resolve_size logic always check size error condition Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 155/205] libbpf: Fix call relocation offset calculation bug Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 164/205] bpf: skmsg, fix potential psock NULL pointer dereference Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 172/205] xdp: Fix cleanup on map free for devmap_hash map type Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 179/205] bpf: Support pre-2.25-binutils objcopy for vmlinux BTF Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 180/205] libbpf: Fix Makefile' libbpf symbol mismatch diagnostic Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 186/205] bpf: Force .BTF section start to zero when dumping from vmlinux Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 191/205] samples/bpf: Fix broken xdp_rxq_info due to map order assumptions Sasha Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200116164300.6705-80-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=andriin@fb.com \
--cc=ast@kernel.org \
--cc=bjorn.topel@intel.com \
--cc=bpf@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=magnus.karlsson@intel.com \
--cc=netdev@vger.kernel.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
BPF Archive on lore.kernel.org
Archives are clonable:
git clone --mirror https://lore.kernel.org/bpf/0 bpf/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 bpf bpf/ https://lore.kernel.org/bpf \
bpf@vger.kernel.org
public-inbox-index bpf
Example config snippet for mirrors
Newsgroup available over NNTP:
nntp://nntp.lore.kernel.org/org.kernel.vger.bpf
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git