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Tue, 18 Jun 2024 13:17:45 -0700 Message-ID: <01685978-f6b1-4c24-8397-22cd3c24b91a@nvidia.com> Date: Tue, 18 Jun 2024 13:17:45 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/6] selftests/mm: mseal, self_elf: factor out test macros and other duplicated items To: Andrew Morton , Jeff Xu , Shuah Khan CC: Andrei Vagin , Axel Rasmussen , Christian Brauner , "David Hildenbrand" , Kees Cook , Kent Overstreet , "Liam R . 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Jun 2024 20:18:08.0193 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c627987e-0283-4c9b-d14b-08dc8fd3c4c7 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000E9D7.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB6012 X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: D62C120008 X-Stat-Signature: 1u4nfsjtz3hh916zzw6w9yq6d3fpysqe X-Rspam-User: X-HE-Tag: 1718741895-255945 X-HE-Meta: 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 dRRPrrqM EdkTcKA5lPBtaxN3NxdtIy6sP+Yd5DnbMGhOtl7ileyY4Vk34Fz7ZN7uK7SQ7GUaSorVE6nSXTVSrb0xLYtvBaEim0fMUVwIVKXHBJ54zeoHIItuZdQBaD1b/slIITA2tPRLzfhXslVPmhI7ulnqF6qziRxCQRx/GFhfxvVkQXQEQupJbQds+3bytrlHy/XDXk3l+A/IEFBWRko+B/N+b84OLOkz58LBPwzaVRRFZR+nphKYpgvrHSH5+2dlpSPIXNb3Np/7S6PwBublemMlQvOjHBslASaJzsG+rVlMU8Q6YntWqP8TVCaCYRM1CKOZNWNmzeIlRTAd4hAb0p1XmEapTU0A4pePGtJ0qVAVqJsQdWNWcJfFuHwKEvDyXBDSi3PEbyC2BkNELB6EwfQjBEoTHd7ZZAHCQWMCBgZR+awN/vyzBK9eL8qYQxvp0Yh8UgeYhCA/ho9e5Kj88RdPS+zCzV6iBgBPdnLjJGTfS3KMSvyYF0wjlI12xww== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000002, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 6/17/24 7:24 PM, John Hubbard wrote: > Clean up and move some copy-pasted items into a new mseal_helpers.h. > > 1. The test macros can be made safer and simpler, by observing that they > are invariably called when about to return. This means that the macros > do not need an intrusive label to goto; they can simply return. > > 2. PKEY* items. We cannot, unfortunately use pkey-helpers.h. The best we > can do is to factor out these few items into mseal_helpers.h. > > 3. These tests still need their own definition of u64, so also move that > to the header file. And I just noticed that I left out this one: 4. Be sure to include the new mseal_helpers.h in the Makefile dependencies. In other words, this hunk is also needed: diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile index 3b49bc3d0a3b..23daa097d5b7 100644 --- a/tools/testing/selftests/mm/Makefile +++ b/tools/testing/selftests/mm/Makefile @@ -2,6 +2,7 @@ # Makefile for mm selftests LOCAL_HDRS += $(selfdir)/mm/local_config.h $(top_srcdir)/mm/gup_test.h +LOCAL_HDRS += $(selfdir)/mm/mseal_helpers.h include local_config.mk I'll send out a v4 with that, once we resolve the discussion around patch 1/6. thanks, -- John Hubbard NVIDIA > > Cc: Jeff Xu > Acked-by: David Hildenbrand > Signed-off-by: John Hubbard > --- > tools/testing/selftests/mm/mseal_helpers.h | 41 ++++++++++++++++++ > tools/testing/selftests/mm/mseal_test.c | 49 +--------------------- > tools/testing/selftests/mm/seal_elf.c | 33 +-------------- > 3 files changed, 43 insertions(+), 80 deletions(-) > create mode 100644 tools/testing/selftests/mm/mseal_helpers.h > > diff --git a/tools/testing/selftests/mm/mseal_helpers.h b/tools/testing/selftests/mm/mseal_helpers.h > new file mode 100644 > index 000000000000..108d3fd0becb > --- /dev/null > +++ b/tools/testing/selftests/mm/mseal_helpers.h > @@ -0,0 +1,41 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > + > +#define FAIL_TEST_IF_FALSE(test_passed) \ > + do { \ > + if (!(test_passed)) { \ > + ksft_test_result_fail("%s: line:%d\n", \ > + __func__, __LINE__); \ > + return; \ > + } \ > + } while (0) > + > +#define SKIP_TEST_IF_FALSE(test_passed) \ > + do { \ > + if (!(test_passed)) { \ > + ksft_test_result_skip("%s: line:%d\n", \ > + __func__, __LINE__); \ > + return; \ > + } \ > + } while (0) > + > +#define TEST_END_CHECK() ksft_test_result_pass("%s\n", __func__) > + > +#ifndef PKEY_DISABLE_ACCESS > +#define PKEY_DISABLE_ACCESS 0x1 > +#endif > + > +#ifndef PKEY_DISABLE_WRITE > +#define PKEY_DISABLE_WRITE 0x2 > +#endif > + > +#ifndef PKEY_BITS_PER_PKEY > +#define PKEY_BITS_PER_PKEY 2 > +#endif > + > +#ifndef PKEY_MASK > +#define PKEY_MASK (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE) > +#endif > + > +#ifndef u64 > +#define u64 unsigned long long > +#endif > diff --git a/tools/testing/selftests/mm/mseal_test.c b/tools/testing/selftests/mm/mseal_test.c > index 58c888529f42..d4d6ae42f502 100644 > --- a/tools/testing/selftests/mm/mseal_test.c > +++ b/tools/testing/selftests/mm/mseal_test.c > @@ -17,54 +17,7 @@ > #include > #include > #include > - > -/* > - * need those definition for manually build using gcc. > - * gcc -I ../../../../usr/include -DDEBUG -O3 -DDEBUG -O3 mseal_test.c -o mseal_test > - */ > -#ifndef PKEY_DISABLE_ACCESS > -# define PKEY_DISABLE_ACCESS 0x1 > -#endif > - > -#ifndef PKEY_DISABLE_WRITE > -# define PKEY_DISABLE_WRITE 0x2 > -#endif > - > -#ifndef PKEY_BITS_PER_PKEY > -#define PKEY_BITS_PER_PKEY 2 > -#endif > - > -#ifndef PKEY_MASK > -#define PKEY_MASK (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE) > -#endif > - > -#define FAIL_TEST_IF_FALSE(c) do {\ > - if (!(c)) {\ > - ksft_test_result_fail("%s, line:%d\n", __func__, __LINE__);\ > - goto test_end;\ > - } \ > - } \ > - while (0) > - > -#define SKIP_TEST_IF_FALSE(c) do {\ > - if (!(c)) {\ > - ksft_test_result_skip("%s, line:%d\n", __func__, __LINE__);\ > - goto test_end;\ > - } \ > - } \ > - while (0) > - > - > -#define TEST_END_CHECK() {\ > - ksft_test_result_pass("%s\n", __func__);\ > - return;\ > -test_end:\ > - return;\ > -} > - > -#ifndef u64 > -#define u64 unsigned long long > -#endif > +#include "mseal_helpers.h" > > static unsigned long get_vma_size(void *addr, int *prot) > { > diff --git a/tools/testing/selftests/mm/seal_elf.c b/tools/testing/selftests/mm/seal_elf.c > index 27bf2f84231d..45c73213775b 100644 > --- a/tools/testing/selftests/mm/seal_elf.c > +++ b/tools/testing/selftests/mm/seal_elf.c > @@ -16,38 +16,7 @@ > #include > #include > #include > - > -/* > - * need those definition for manually build using gcc. > - * gcc -I ../../../../usr/include -DDEBUG -O3 -DDEBUG -O3 seal_elf.c -o seal_elf > - */ > -#define FAIL_TEST_IF_FALSE(c) do {\ > - if (!(c)) {\ > - ksft_test_result_fail("%s, line:%d\n", __func__, __LINE__);\ > - goto test_end;\ > - } \ > - } \ > - while (0) > - > -#define SKIP_TEST_IF_FALSE(c) do {\ > - if (!(c)) {\ > - ksft_test_result_skip("%s, line:%d\n", __func__, __LINE__);\ > - goto test_end;\ > - } \ > - } \ > - while (0) > - > - > -#define TEST_END_CHECK() {\ > - ksft_test_result_pass("%s\n", __func__);\ > - return;\ > -test_end:\ > - return;\ > -} > - > -#ifndef u64 > -#define u64 unsigned long long > -#endif > +#include "mseal_helpers.h" > > /* > * define sys_xyx to call syscall directly.