linux-kernel - [PATCH] proc: /proc filesystem check error message

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Message-ID: <20250819124923.9094-1-mallikarjunst09@gmail.com>
Date: Tue, 19 Aug 2025 12:49:23 +0000
From: Mallikarjun Thammanavar <mallikarjunst09@...il.com>
To: shuah@...nel.org
Cc: linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	Mallikarjun Thammanavar <mallikarjunst09@...il.com>
Subject: [PATCH] proc: /proc filesystem check error message

Improve /proc filesystem check error message when filesystem type
is unexpected

Signed-off-by: Mallikarjun Thammanavar <mallikarjunst09@...il.com>
---
 tools/testing/selftests/proc/read.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/proc/read.c b/tools/testing/selftests/proc/read.c
index 35ee78dff144..c0f44ee71e79 100644
--- a/tools/testing/selftests/proc/read.c
+++ b/tools/testing/selftests/proc/read.c
@@ -138,7 +138,7 @@ int main(void)
 		return 1;
 	}
 	if (sfs.f_type != 0x9fa0) {
-		fprintf(stderr, "error: unexpected f_type %lx\n", (long)sfs.f_type);
+		fprintf(stderr, "error: /proc is not procfs (f_type = %lx)\n", (long)sfs.f_type);
 		return 2;
 	}
 
-- 
2.43.0