Alexei Starovoitov ec2c00f846 selftests/bpf: Fix map_kptr test. ...

[ Upstream commit 62d101d5f4 ]

The compiler is optimizing out majority of unref_ptr read/writes, so the test
wasn't testing much. For example, one could delete '__kptr' tag from
'struct prog_test_ref_kfunc __kptr *unref_ptr;' and the test would still "pass".

Convert it to volatile stores. Confirmed by comparing bpf asm before/after.

Fixes: 2cbc469a6f ("selftests/bpf: Add C tests for kptr")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20230214235051.22938-1-alexei.starovoitov@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-03-10 09:33:05 +01:00

..

crypto/chacha20-s390

tools/testing/crypto: Use vzalloc instead of vmalloc+memset

2022-07-05 14:46:36 +02:00

cxl

tools/testing/cxl: Add a single-port host-bridge regression config

2022-11-04 16:01:24 -07:00

fault-injection

…

ktest

ktest.pl minconfig: Unset configs instead of just removing them

2023-01-07 11:11:37 +01:00

kunit

kunit: tool: Don't download risc-v opensbi firmware with wget

2022-10-07 10:16:28 -06:00

memblock

Revert "mm: Always release pages to the buddy allocator in memblock_free_late()."

2023-02-22 12:59:50 +01:00

nvdimm

ndtest: Cleanup all of blk namespace specific code

2022-07-12 17:57:55 -07:00

radix-tree

maple_tree: reorganize testing to restore module testing

2022-11-08 15:57:22 -08:00

scatterlist

tools/testing/scatterlist: add missing defines

2022-01-30 09:56:58 +02:00

selftests

selftests/bpf: Fix map_kptr test.

2023-03-10 09:33:05 +01:00

vsock

vsock_test: POLLIN + SO_RCVLOWAT test

2022-08-23 10:43:12 +02:00