linux-kernel - [PATCH AUTOSEL 6.1 07/34] zstd: Fix definition of assert()

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Date:   Wed, 22 Mar 2023 15:58:59 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Jonathan Neuschäfer <j.neuschaefer@....net>,
        Nick Terrell <terrelln@...com>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 6.1 07/34] zstd: Fix definition of assert()

From: Jonathan Neuschäfer <j.neuschaefer@....net>

[ Upstream commit 6906598f1ce93761716d780b6e3f171e13f0f4ce ]

assert(x) should emit a warning if x is false. WARN_ON(x) emits a
warning if x is true. Thus, assert(x) should be defined as WARN_ON(!x)
rather than WARN_ON(x).

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@....net>
Signed-off-by: Nick Terrell <terrelln@...com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 lib/zstd/common/zstd_deps.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/zstd/common/zstd_deps.h b/lib/zstd/common/zstd_deps.h
index 7a5bf44839c9c..f06df065dec01 100644
--- a/lib/zstd/common/zstd_deps.h
+++ b/lib/zstd/common/zstd_deps.h
@@ -84,7 +84,7 @@ static uint64_t ZSTD_div64(uint64_t dividend, uint32_t divisor) {
 
 #include <linux/kernel.h>
 
-#define assert(x) WARN_ON((x))
+#define assert(x) WARN_ON(!(x))
 
 #endif /* ZSTD_DEPS_ASSERT */
 #endif /* ZSTD_DEPS_NEED_ASSERT */
-- 
2.39.2