From patchwork Tue Apr 30 01:06:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Edward Liaw X-Patchwork-Id: 13647912 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 73BD51113 for ; Tue, 30 Apr 2024 01:06:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714439193; cv=none; b=ZwX78JNYSyg3FTDl+FR1DGBsZJNeX6FrUZdY8iaBxs9uRi/mliha1SuNuLGOsx5d0Ca/QnvCP5FielAQmEF9Z66ZKKHLl4FsEbj7wP8KDxPFrYeEy5tNz5a08lygthsZcfhNjx3feTr2Rj+3qbkFUQ2lcG4EJWDVE4IuR07HfAQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714439193; c=relaxed/simple; bh=CQZ+rutb34tlCcqKjJD9BEd+5QtdQSwRC5IuvL3355o=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=YHdBvaoR77kmEYhTNXBDS9WRr3mp7lhdu9vuh/WY3DCNoQHIoYl83HWPcnfFnz4HVcI+b/sJljEpwCsTEf4ObIc2s+6lYtQjR/JD1pNu6IXzV5DmrFIY1c5q3Q5MTIQFGSsOFm5JIqSFqLL2tRq4bnRkbbmODbSVb5QT4vB/KeI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--edliaw.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=pIUnrvPu; arc=none smtp.client-ip=209.85.215.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--edliaw.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="pIUnrvPu" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-60361c6fa70so5076841a12.3 for ; Mon, 29 Apr 2024 18:06:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1714439192; x=1715043992; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=o1ppiacHBGt4deDldEbdpGFMwipyVa+kEjFesHxd+4M=; b=pIUnrvPu19HKo6KofwgjMrtkwNpbkF3GtTZC7LSI0Om2iqrAKRwaSaKeS6iw3h9UMV ZdMho5vD2PhzadZJAxpE6ayXw1XlXLRsMNaxMSlGjHUfExHrEeg2fHjwScmIDonSCXH5 uhEydjFRqeuauhJZV2SZWAPL+tLh/TDI3sj8Oe0fbCy+wN5eQeciKbcvhhLBX20/q8Fz OGa03/tm23pzRyVtNSL2kJtBf5nReYZMmgMw5j5TZZbGKEwaMYS6Lb2SIW+JIWjT/TzY zNkIIM1KBvItOnmFkiYt64OsREUPs9D9bXObKwV394b6NiRULc5/huPoCimnwff1BUUv eTfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714439192; x=1715043992; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=o1ppiacHBGt4deDldEbdpGFMwipyVa+kEjFesHxd+4M=; b=stEN0UKl3wTXt2V68KHiu5OpUcWI0t9rAE/bod3vOEeJBEqKX2PtePNAe+S+aQUwLr Hc4b7/W/wX0LOmuXu7Svz9O/y31z3XUcN1ZVURdn7dZISzgSTYTVb/3y/vXS2vziS/rI D/ztltAm6Loc+Md5D09qK3mt4PKiulqlYfRHKkZXi3xeriVP8lKP3O5V+kcTM/dddLpZ iPjrHeCN7NpL/OppEeG3kWTXl2FStNXgfoBR87L7mB+B6tXY0rdphL9NV/UEscb1XbRJ O1VFJprnm61pFqLo7BGWr9Xb4Ou89wT8zR86WVIB0iTBiNsLtkeeoKmSvkMdEJgIQDm7 8c+g== X-Forwarded-Encrypted: i=1; AJvYcCWApJNv++aDfnXfvaI8+EWlV/h6NoBPoWG/Jf5AfFCT4izXjN3nN6xPjVl3sjt/RfySBfhmCQIrHMPp7l/7C4JpA4VusFGo4ox935IO0eGw X-Gm-Message-State: AOJu0YwAJozH0GEOFHD6y5Z2kRHHCOtWBlGZB3gYuoffUm4lV0dweu98 vZSejtasSYvJyqyD/bBtl1cFsKkHqR60aFS5hQfdmAnVzVORZQZITDPUQfuk/xt20CRN7kRyxtD Jvg== X-Google-Smtp-Source: AGHT+IH3du7DU4SSas1waSsGTfaKPkaIxmUOV3AAlzhPD+DO0cmHY4Fhz82mZzN9VrX9rQfmrW+YUUXg57Q= X-Received: from edliaw.c.googlers.com ([fda3:e722:ac3:cc00:24:72f4:c0a8:305d]) (user=edliaw job=sendgmr) by 2002:a63:33c4:0:b0:60a:869f:3a6c with SMTP id z187-20020a6333c4000000b0060a869f3a6cmr2542pgz.5.1714439191602; Mon, 29 Apr 2024 18:06:31 -0700 (PDT) Date: Tue, 30 Apr 2024 01:06:27 +0000 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.44.0.769.g3c40516874-goog Message-ID: <20240430010628.430427-1-edliaw@google.com> Subject: [PATCH 6.6.y] kselftest: Add a ksft_perror() helper From: Edward Liaw To: stable@vger.kernel.org, Shuah Khan Cc: kernel-team@android.com, Mark Brown , Kees Cook , Shuah Khan , Edward Liaw , linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org From: Mark Brown [ Upstream commit 907f33028871fa7c9a3db1efd467b78ef82cce20 ] The standard library perror() function provides a convenient way to print an error message based on the current errno but this doesn't play nicely with KTAP output. Provide a helper which does an equivalent thing in a KTAP compatible format. nolibc doesn't have a strerror() and adding the table of strings required doesn't seem like a good fit for what it's trying to do so when we're using that only print the errno. Signed-off-by: Mark Brown Reviewed-by: Kees Cook Signed-off-by: Shuah Khan Stable-dep-of: 071af0c9e582 ("selftests: timers: Convert posix_timers test to generate KTAP output") Signed-off-by: Edward Liaw --- tools/testing/selftests/kselftest.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index e8eecbc83a60..ad7b97e16f37 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -48,6 +48,7 @@ #include #include #include +#include #include #include #endif @@ -156,6 +157,19 @@ static inline void ksft_print_msg(const char *msg, ...) va_end(args); } +static inline void ksft_perror(const char *msg) +{ +#ifndef NOLIBC + ksft_print_msg("%s: %s (%d)\n", msg, strerror(errno), errno); +#else + /* + * nolibc doesn't provide strerror() and it seems + * inappropriate to add one, just print the errno. + */ + ksft_print_msg("%s: %d)\n", msg, errno); +#endif +} + static inline void ksft_test_result_pass(const char *msg, ...) { int saved_errno = errno;