linux-kernel - [PATCH 6.7 198/713] selftests/bpf: trace

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Date: Sun, 24 Mar 2024 18:38:44 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Shung-Hsi Yu <shung-hsi.yu@...e.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Martin KaFai Lau <martin.lau@...nel.org>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.7 198/713] selftests/bpf: trace_helpers.c: do not use poisoned type

From: Shung-Hsi Yu <shung-hsi.yu@...e.com>

[ Upstream commit a68b50f47bec8bd6a33b07b7e1562db2553981a7 ]

After commit c698eaebdf47 ("selftests/bpf: trace_helpers.c: Optimize
kallsyms cache") trace_helpers.c now includes libbpf_internal.h, and
thus can no longer use the u32 type (among others) since they are poison
in libbpf_internal.h. Replace u32 with __u32 to fix the following error
when building trace_helpers.c on powerpc:

  error: attempt to use poisoned "u32"

Fixes: c698eaebdf47 ("selftests/bpf: trace_helpers.c: Optimize kallsyms cache")
Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@...e.com>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Link: https://lore.kernel.org/r/20240202095559.12900-1-shung-hsi.yu@suse.com
Signed-off-by: Martin KaFai Lau <martin.lau@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/bpf/trace_helpers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/trace_helpers.c b/tools/testing/selftests/bpf/trace_helpers.c
index 4faa898ff7fc4..27fd7ed3e4b0c 100644
--- a/tools/testing/selftests/bpf/trace_helpers.c
+++ b/tools/testing/selftests/bpf/trace_helpers.c
@@ -271,7 +271,7 @@ ssize_t get_uprobe_offset(const void *addr)
 	 * addi  r2,r2,XXXX
 	 */
 	{
-		const u32 *insn = (const u32 *)(uintptr_t)addr;
+		const __u32 *insn = (const __u32 *)(uintptr_t)addr;
 
 		if ((((*insn & OP_RT_RA_MASK) == ADDIS_R2_R12) ||
 		     ((*insn & OP_RT_RA_MASK) == LIS_R2)) &&
-- 
2.43.0