From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3C48446B5 for ; Mon, 16 Jan 2023 16:11:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B5CEFC433D2; Mon, 16 Jan 2023 16:11:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673885478; bh=l4mdijT3DXLoB3FEQAQQT3XWHgMtUjdefbiHKLqvrG4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mBm87mI6N4i12Br9W4HFrtgS4pRXsRif99O9TJGUpXOVRd6Mxt1H3DeucPr/L3ZIK LBKan9i0ewuSzvrtgUW/djd7lg/q5/a0w/cd4EGq7ayAv+1O6a8ERQG8GAVArn2ea8 WN7I38ln5HIiBwoH4/7zEDTWWC3mYGjQIklibqr0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Alexey Dobriyan , Andrew Morton , Sasha Levin Subject: [PATCH 5.4 059/658] proc: fixup uptime selftest Date: Mon, 16 Jan 2023 16:42:27 +0100 Message-Id: <20230116154912.378055748@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154909.645460653@linuxfoundation.org> References: <20230116154909.645460653@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Alexey Dobriyan [ Upstream commit 5cc81d5c81af0dee54da9a67a3ebe4be076a13db ] syscall(3) returns -1 and sets errno on error, unlike "syscall" instruction. Systems which have <= 32/64 CPUs are unaffected. Test won't bounce to all CPUs before completing if there are more of them. Link: https://lkml.kernel.org/r/Y1bUiT7VRXlXPQa1@p183 Fixes: 1f5bd0547654 ("proc: selftests: test /proc/uptime") Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Sasha Levin --- tools/testing/selftests/proc/proc-uptime-002.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/proc/proc-uptime-002.c b/tools/testing/selftests/proc/proc-uptime-002.c index e7ceabed7f51..7d0aa22bdc12 100644 --- a/tools/testing/selftests/proc/proc-uptime-002.c +++ b/tools/testing/selftests/proc/proc-uptime-002.c @@ -17,6 +17,7 @@ // while shifting across CPUs. #undef NDEBUG #include +#include #include #include #include @@ -54,7 +55,7 @@ int main(void) len += sizeof(unsigned long); free(m); m = malloc(len); - } while (sys_sched_getaffinity(0, len, m) == -EINVAL); + } while (sys_sched_getaffinity(0, len, m) == -1 && errno == EINVAL); fd = open("/proc/uptime", O_RDONLY); assert(fd >= 0); -- 2.35.1