diff options
author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-06-19 16:33:14 +0200 |
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committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-06-19 16:33:14 +0200 |
commit | de8a334f215c5a5c5bb070df4325af824d7eaaf1 (patch) | |
tree | b1106ab401a46ce66725f61a7d1b067e9a08f859 /tools/testing/selftests/bpf/progs/inner_array_lookup.c | |
parent | 0adec22702d497385dbdc52abb165f379a00efba (diff) | |
parent | 2222dcb0775d36de28992f56455ab3967b30d380 (diff) |
Merge drm/drm-next into drm-misc-next
Backmerging into drm-misc-next to get commit 2c1c7ba457d4
("drm/amdgpu: support partition drm devices"), which is required to fix
commit 0adec22702d4 ("drm: Remove struct drm_driver.gem_prime_mmap").
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/inner_array_lookup.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/inner_array_lookup.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/inner_array_lookup.c b/tools/testing/selftests/bpf/progs/inner_array_lookup.c new file mode 100644 index 000000000000..c2c8f2fa451d --- /dev/null +++ b/tools/testing/selftests/bpf/progs/inner_array_lookup.c @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +struct inner_map { + __uint(type, BPF_MAP_TYPE_ARRAY); + __uint(max_entries, 5); + __type(key, int); + __type(value, int); +} inner_map1 SEC(".maps"); + +struct outer_map { + __uint(type, BPF_MAP_TYPE_HASH_OF_MAPS); + __uint(max_entries, 3); + __type(key, int); + __array(values, struct inner_map); +} outer_map1 SEC(".maps") = { + .values = { + [2] = &inner_map1, + }, +}; + +SEC("raw_tp/sys_enter") +int handle__sys_enter(void *ctx) +{ + int outer_key = 2, inner_key = 3; + int *val; + void *map; + + map = bpf_map_lookup_elem(&outer_map1, &outer_key); + if (!map) + return 1; + + val = bpf_map_lookup_elem(map, &inner_key); + if (!val) + return 1; + + if (*val == 1) + *val = 2; + + return 0; +} + +char _license[] SEC("license") = "GPL"; |