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authorAndrii Nakryiko <andrii@kernel.org>2024-03-19 14:51:43 -0700
committerAlexei Starovoitov <ast@kernel.org>2024-03-19 22:54:04 -0700
commit5ab8cb89dbb6f3e111c8b0a9a86496da23c94439 (patch)
treee39824b931c665dba7872599e8d7a3982292e036 /tools/lib/bpf
parent7ded842b356d151ece8ac4985940438e6d3998bb (diff)
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libbpf: fix u64-to-pointer cast on 32-bit arches
It's been reported that (void *)map->map_extra is causing compilation warnings on 32-bit architectures. It's easy enough to fix this by casting to long first. Fixes: 79ff13e99169 ("libbpf: Add support for bpf_arena.") Reported-by: Ryan Eatmon <reatmon@ti.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Message-ID: <20240319215143.1279312-1-andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib/bpf')
-rw-r--r--tools/lib/bpf/libbpf.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 36e26f4f5997..1e3e697b98bc 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -5352,8 +5352,8 @@ retry:
goto err_out;
}
if (map->def.type == BPF_MAP_TYPE_ARENA) {
- map->mmaped = mmap((void *)map->map_extra, bpf_map_mmap_sz(map),
- PROT_READ | PROT_WRITE,
+ map->mmaped = mmap((void *)(long)map->map_extra,
+ bpf_map_mmap_sz(map), PROT_READ | PROT_WRITE,
map->map_extra ? MAP_SHARED | MAP_FIXED : MAP_SHARED,
map->fd, 0);
if (map->mmaped == MAP_FAILED) {