November 2017 - Linux-kselftest-mirror

Re: [Linux-kselftest-mirror] [PATCH v9 44/51] selftest/vm: powerpc implementation for generic abstraction

by Breno Leitao

Hi Ram, On Mon, Nov 06, 2017 at 12:57:36AM -0800, Ram Pai wrote: > @@ -206,12 +209,14 @@ void signal_handler(int signum, siginfo_t *si, void *vucontext) > > trapno = uctxt->uc_mcontext.gregs[REG_TRAPNO]; > ip = uctxt->uc_mcontext.gregs[REG_IP_IDX]; > - fpregset = uctxt->uc_mcontext.fpregs; > - fpregs = (void *)fpregset; Since you removed all references for fpregset now, you probably want to remove the declaration of the variable above. > @@ -219,20 +224,21 @@ void signal_handler(int signum, siginfo_t *si, void *vucontext) > * state. We just assume that it is here. > */ > fpregs += 0x70; > -#endif > - pkey_reg_offset = pkey_reg_xstate_offset(); With this code, you removed all the reference for variable pkey_reg_offset, thus, its declaration could be removed also. > - *(u64 *)pkey_reg_ptr = 0x00000000; > + dprintf1("si_pkey from siginfo: %lx\n", si_pkey); > +#if defined(__i386__) || defined(__x86_64__) /* arch */ > + dprintf1("signal pkey_reg from xsave: %016lx\n", *pkey_reg_ptr); > + *(u64 *)pkey_reg_ptr &= reset_bits(si_pkey, PKEY_DISABLE_ACCESS); > +#elif __powerpc64__ Since the variable pkey_reg_ptr is only used for Intel code (inside #ifdefs), you probably want to #ifdef the variable declaration also, avoid triggering "unused variable" warning on non-Intel machines. -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

7 years, 1 month

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Re: [Linux-kselftest-mirror] [PATCH v9 00/51] powerpc, mm: Memory Protection Keys

by Ram Pai

On Mon, Nov 06, 2017 at 05:22:18PM -0800, Ram Pai wrote: > On Mon, Nov 06, 2017 at 10:28:41PM +0100, Florian Weimer wrote: > > * Ram Pai: > > > > > Testing: > > > ------- > > > This patch series has passed all the protection key > > > tests available in the selftest directory.The > > > tests are updated to work on both x86 and powerpc. > > > The selftests have passed on x86 and powerpc hardware. > > ....snip.... > > What about siglongjmp from a signal handler? > > On powerpc there is some relief. the permissions on a key can be > modified from anywhere, including from the signal handler, and the > effect will be immediate. You dont have to wait till the > signal handler returns for the key permissions to be restore. > > also after return from the sigsetjmp(); > possibly caused by siglongjmp(), the program can restore the permission > on any key. > > Atleast that is my theory. Can you give me a testcase; if you have one > handy. > > > > > <https://sourceware.org/bugzilla/show_bug.cgi?id=22396> > > reading through the bug report, you mention that the following "The application may not be able to save and restore the protection bits for all keys because the kernel API does not actually specify that the set of keys is a small, fixed set." What exact kernel API do you need? This patch set exposes the total number of keys and max keys, through sysfs. https://marc.info/?l=linux-kernel&m=150995950219669&w=2 Is this sufficient? or do you need something else? RP -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

7 years, 1 month

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Re: [Linux-kselftest-mirror] [PATCH] selftests: memfd_test.c: fix compilation warning.

by Shuah Khan

On 11/05/2017 03:56 AM, Lei Yang wrote: > Replace '%d' by '%zu' to fix the following compilation warning. > > memfd_test.c:517:3: warning: format ‘%d’ expects argument of > type ‘int’,but argument 2 has type ‘size_t’ [-Wformat=] > printf("malloc(%d) failed: %m\n", mfd_def_size * 8); > ^ > memfd_test.c: In function ‘mfd_fail_grow_write’: > memfd_test.c:537:3: warning: format ‘%d’ expects argument > of type ‘int’,but argument 2 has type ‘size_t’ [-Wformat=] > printf("malloc(%d) failed: %m\n", mfd_def_size * 8); > > Signed-off-by: Lei Yang <Lei.Yang(a)windriver.com> Thanks for the patch. Applied to linux-kselftest next for 4.15-rc1 -- Shuah -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

7 years, 1 month

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[Linux-kselftest-mirror] [PATCH v2 0/2] selftests: firmware: skip testing unsupported features

by Amit Pundir

Hi, At Linaro we run mainline/linux-next selftests on LTS releases and run into few test failures due to kernel mismatch or missing upstream functionality in older kernels. Discussed at length here: https://lkml.org/lkml/2017/6/15/652 This patch series is an attempt to modify selftest firmware test scripts. The proposed changes skip/ignore testing the upstream functionality missing in the older kernel releases. v2: Changed the display message to make it consistent across all the firmware test scripts. Added Fixes tag. Regards, Amit Pundir Amit Pundir (2): selftests: firmware: skip unsupported async loading tests selftests: firmware: skip unsupported custom firmware fallback tests tools/testing/selftests/firmware/fw_fallback.sh | 38 ++++++++++++++++------- tools/testing/selftests/firmware/fw_filesystem.sh | 34 ++++++++++++-------- 2 files changed, 47 insertions(+), 25 deletions(-) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

7 years, 1 month

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[Linux-kselftest-mirror] [RFC PATCH for 4.15 6/6] membarrier: selftest: Test private expedited sync core cmd

by Mathieu Desnoyers

Test the new MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE and MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE commands. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> CC: Shuah Khan <shuahkh(a)osg.samsung.com> CC: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> CC: Peter Zijlstra <peterz(a)infradead.org> CC: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> CC: Boqun Feng <boqun.feng(a)gmail.com> CC: Andrew Hunter <ahh(a)google.com> CC: Maged Michael <maged.michael(a)gmail.com> CC: gromer(a)google.com CC: Avi Kivity <avi(a)scylladb.com> CC: Benjamin Herrenschmidt <benh(a)kernel.crashing.org> CC: Paul Mackerras <paulus(a)samba.org> CC: Michael Ellerman <mpe(a)ellerman.id.au> CC: Dave Watson <davejwatson(a)fb.com> CC: Alan Stern <stern(a)rowland.harvard.edu> CC: Will Deacon <will.deacon(a)arm.com> CC: Andy Lutomirski <luto(a)kernel.org> CC: Alice Ferrazzi <alice.ferrazzi(a)gmail.com> CC: Paul Elder <paul.elder(a)pitt.edu> CC: linux-kselftest(a)vger.kernel.org CC: linux-arch(a)vger.kernel.org --- .../testing/selftests/membarrier/membarrier_test.c | 77 +++++++++++++++++++++- 1 file changed, 76 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/membarrier/membarrier_test.c b/tools/testing/selftests/membarrier/membarrier_test.c index d7543a6d9030..a0eae8d51e72 100644 --- a/tools/testing/selftests/membarrier/membarrier_test.c +++ b/tools/testing/selftests/membarrier/membarrier_test.c @@ -132,6 +132,63 @@ static int test_membarrier_private_expedited_success(void) return 0; } +static int test_membarrier_private_expedited_sync_core_fail(void) +{ + int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE not registered failure"; + + if (sys_membarrier(cmd, flags) != -1) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should fail, but passed\n", + test_name, flags); + } + if (errno != EPERM) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n", + test_name, flags, EPERM, strerror(EPERM), + errno, strerror(errno)); + } + + ksft_test_result_pass( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + return 0; +} + +static int test_membarrier_register_private_expedited_sync_core_success(void) +{ + int cmd = MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE"; + + if (sys_membarrier(cmd, flags) != 0) { + ksft_exit_fail_msg( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + } + + ksft_test_result_pass( + "%s test: flags = %d\n", + test_name, flags); + return 0; +} + +static int test_membarrier_private_expedited_sync_core_success(void) +{ + int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE"; + + if (sys_membarrier(cmd, flags) != 0) { + ksft_exit_fail_msg( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + } + + ksft_test_result_pass( + "%s test: flags = %d\n", + test_name, flags); + return 0; +} + static int test_membarrier(void) { int status; @@ -154,6 +211,22 @@ static int test_membarrier(void) status = test_membarrier_private_expedited_success(); if (status) return status; + status = sys_membarrier(MEMBARRIER_CMD_QUERY, 0); + if (status < 0) { + ksft_test_result_fail("sys_membarrier() failed\n"); + return status; + } + if (status & MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE) { + status = test_membarrier_private_expedited_sync_core_fail(); + if (status) + return status; + status = test_membarrier_register_private_expedited_sync_core_success(); + if (status) + return status; + status = test_membarrier_private_expedited_sync_core_success(); + if (status) + return status; + } return 0; } @@ -173,8 +246,10 @@ static int test_membarrier_query(void) } ksft_exit_fail_msg("sys_membarrier() failed\n"); } - if (!(ret & MEMBARRIER_CMD_SHARED)) + if (!(ret & MEMBARRIER_CMD_SHARED)) { + ksft_test_result_fail("sys_membarrier() CMD_SHARED query failed\n"); ksft_exit_fail_msg("sys_membarrier is not supported.\n"); + } ksft_test_result_pass("sys_membarrier available\n"); return 0; -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

7 years, 1 month

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[Linux-kselftest-mirror] [RFC PATCH for 4.15 1/6] membarrier: selftest: Test private expedited cmd

by Mathieu Desnoyers

Test the new MEMBARRIER_CMD_PRIVATE_EXPEDITED and MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED commands. Add checks expecting specific error values on system calls expected to fail. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Acked-by: Shuah Khan <shuahkh(a)osg.samsung.com> Acked-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> CC: Peter Zijlstra <peterz(a)infradead.org> CC: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> CC: Boqun Feng <boqun.feng(a)gmail.com> CC: Andrew Hunter <ahh(a)google.com> CC: Maged Michael <maged.michael(a)gmail.com> CC: gromer(a)google.com CC: Avi Kivity <avi(a)scylladb.com> CC: Benjamin Herrenschmidt <benh(a)kernel.crashing.org> CC: Paul Mackerras <paulus(a)samba.org> CC: Michael Ellerman <mpe(a)ellerman.id.au> CC: Dave Watson <davejwatson(a)fb.com> CC: Alan Stern <stern(a)rowland.harvard.edu> CC: Will Deacon <will.deacon(a)arm.com> CC: Andy Lutomirski <luto(a)kernel.org> CC: Alice Ferrazzi <alice.ferrazzi(a)gmail.com> CC: Paul Elder <paul.elder(a)pitt.edu> CC: linux-kselftest(a)vger.kernel.org CC: linux-arch(a)vger.kernel.org --- .../testing/selftests/membarrier/membarrier_test.c | 109 ++++++++++++++++++--- 1 file changed, 94 insertions(+), 15 deletions(-) diff --git a/tools/testing/selftests/membarrier/membarrier_test.c b/tools/testing/selftests/membarrier/membarrier_test.c index 9e674d9514d1..d7543a6d9030 100644 --- a/tools/testing/selftests/membarrier/membarrier_test.c +++ b/tools/testing/selftests/membarrier/membarrier_test.c @@ -16,49 +16,119 @@ static int sys_membarrier(int cmd, int flags) static int test_membarrier_cmd_fail(void) { int cmd = -1, flags = 0; + const char *test_name = "sys membarrier invalid command"; if (sys_membarrier(cmd, flags) != -1) { ksft_exit_fail_msg( - "sys membarrier invalid command test: command = %d, flags = %d. Should fail, but passed\n", - cmd, flags); + "%s test: command = %d, flags = %d. Should fail, but passed\n", + test_name, cmd, flags); + } + if (errno != EINVAL) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n", + test_name, flags, EINVAL, strerror(EINVAL), + errno, strerror(errno)); } ksft_test_result_pass( - "sys membarrier invalid command test: command = %d, flags = %d. Failed as expected\n", - cmd, flags); + "%s test: command = %d, flags = %d, errno = %d. Failed as expected\n", + test_name, cmd, flags, errno); return 0; } static int test_membarrier_flags_fail(void) { int cmd = MEMBARRIER_CMD_QUERY, flags = 1; + const char *test_name = "sys membarrier MEMBARRIER_CMD_QUERY invalid flags"; if (sys_membarrier(cmd, flags) != -1) { ksft_exit_fail_msg( - "sys membarrier MEMBARRIER_CMD_QUERY invalid flags test: flags = %d. Should fail, but passed\n", - flags); + "%s test: flags = %d. Should fail, but passed\n", + test_name, flags); + } + if (errno != EINVAL) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n", + test_name, flags, EINVAL, strerror(EINVAL), + errno, strerror(errno)); } ksft_test_result_pass( - "sys membarrier MEMBARRIER_CMD_QUERY invalid flags test: flags = %d. Failed as expected\n", - flags); + "%s test: flags = %d, errno = %d. Failed as expected\n", + test_name, flags, errno); return 0; } -static int test_membarrier_success(void) +static int test_membarrier_shared_success(void) { int cmd = MEMBARRIER_CMD_SHARED, flags = 0; - const char *test_name = "sys membarrier MEMBARRIER_CMD_SHARED\n"; + const char *test_name = "sys membarrier MEMBARRIER_CMD_SHARED"; + + if (sys_membarrier(cmd, flags) != 0) { + ksft_exit_fail_msg( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + } + + ksft_test_result_pass( + "%s test: flags = %d\n", test_name, flags); + return 0; +} + +static int test_membarrier_private_expedited_fail(void) +{ + int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED not registered failure"; + + if (sys_membarrier(cmd, flags) != -1) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should fail, but passed\n", + test_name, flags); + } + if (errno != EPERM) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n", + test_name, flags, EPERM, strerror(EPERM), + errno, strerror(errno)); + } + + ksft_test_result_pass( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + return 0; +} + +static int test_membarrier_register_private_expedited_success(void) +{ + int cmd = MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED"; if (sys_membarrier(cmd, flags) != 0) { ksft_exit_fail_msg( - "sys membarrier MEMBARRIER_CMD_SHARED test: flags = %d\n", - flags); + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); } ksft_test_result_pass( - "sys membarrier MEMBARRIER_CMD_SHARED test: flags = %d\n", - flags); + "%s test: flags = %d\n", + test_name, flags); + return 0; +} + +static int test_membarrier_private_expedited_success(void) +{ + int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED"; + + if (sys_membarrier(cmd, flags) != 0) { + ksft_exit_fail_msg( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + } + + ksft_test_result_pass( + "%s test: flags = %d\n", + test_name, flags); return 0; } @@ -72,7 +142,16 @@ static int test_membarrier(void) status = test_membarrier_flags_fail(); if (status) return status; - status = test_membarrier_success(); + status = test_membarrier_shared_success(); + if (status) + return status; + status = test_membarrier_private_expedited_fail(); + if (status) + return status; + status = test_membarrier_register_private_expedited_success(); + if (status) + return status; + status = test_membarrier_private_expedited_success(); if (status) return status; return 0; -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

7 years, 1 month

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[Linux-kselftest-mirror] [PATCH 0/2] selftests: firmware: skip testing unsupported features

by Amit Pundir

Hi, At Linaro we run mainline/linux-next selftests on LTS releases and run into few test failures due to kernel mismatch or missing upstream functionality in older kernels. Discussed at length here: https://lkml.org/lkml/2017/6/15/652 This patch series is an attempt to modify selftest firmware test scripts. The proposed changes skip/ignore testing the upstream functionality missing in the older kernel releases. Regards, Amit Pundir Amit Pundir (2): selftests: firmware: skip unsupported async loading tests selftests: firmware: skip unsupported custom firmware fallback tests tools/testing/selftests/firmware/fw_fallback.sh | 38 ++++++++++++++++------- tools/testing/selftests/firmware/fw_filesystem.sh | 34 ++++++++++++-------- 2 files changed, 47 insertions(+), 25 deletions(-) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

7 years, 1 month

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Re: [Linux-kselftest-mirror] [PATCH] selftests: futex: fix compilation error

by Shuah Khan

On 11/06/2017 06:18 PM, lei yang wrote: > > > On 2017年11月07日 07:48, Shuah Khan wrote: >> On 11/06/2017 04:45 PM, Shuah Khan wrote: >>> On 11/05/2017 09:03 PM, Lei Yang wrote: >>>> I run into below error when building futext >>>> /bin/sh: -c: line 5: syntax error: unexpected end of file >>>> >>>> the closing ";" and "\" are necessary. >>>> My OS is "Ubuntu 14.04.5 LTS" >>>> >>>> Signed-off-by: Lei Yang <Lei.Yang(a)windriver.com> >>>> --- >>>> tools/testing/selftests/futex/Makefile | 6 +++--- >>>> 1 file changed, 3 insertions(+), 3 deletions(-) >>>> >>>> diff --git a/tools/testing/selftests/futex/Makefile b/tools/testing/selftests/futex/Makefile >>>> index f0c0369..943f3a2 100644 >>>> --- a/tools/testing/selftests/futex/Makefile >>>> +++ b/tools/testing/selftests/futex/Makefile >>>> @@ -11,9 +11,9 @@ all: >>>> BUILD_TARGET=$(OUTPUT)/$$DIR; \ >>>> mkdir $$BUILD_TARGET -p; \ >>>> make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\ >>>> - if [ -e $$DIR/$(TEST_PROGS) ]; then >>>> - rsync -a $$DIR/$(TEST_PROGS) $$BUILD_TARGET/; >>>> - fi >>>> + if [ -e $$DIR/$(TEST_PROGS) ]; then \ >>>> + rsync -a $$DIR/$(TEST_PROGS) $$BUILD_TARGET/; \ >>>> + fi \ >>>> done >>>> override define RUN_TESTS >>>> >>> Hmm. I don't see this error on linux_4.14-rc8? >>> >>> Can you give more details on the gcc version you are using? >> >> I meant gnumake version? I am not seeing the failure with what I am >> using > > $ make -v > GNU Make 3.81 > Copyright (C) 2006 Free Software Foundation, Inc. > This is free software; see the source for copying conditions. > There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A > PARTICULAR PURPOSE. > > This program built for x86_64-pc-linux-gnu > > > Lei > I can't take patches that aren't tested on the latest kernel release. 3.16 is very old. I am not going reply to other patches you sent. Please make sure the patches are based on the latest release and tested on it as well. thanks, -- Shuah -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

7 years, 1 month

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[Linux-kselftest-mirror] [PATCH] selftests: kselftest.h: fix compilation errors

by Lei Yang

In next branch, Various build failed with: In file included from membarrier_test.c:8:0: ../kselftest.h: In function ‘ksft_print_header’: ../kselftest.h:61:3: error: expected ‘)’ before ‘printf’ printf("TAP version 13\n"); ^ ../kselftest.h:62:1: error: expected expression before ‘}’ token } ^ Signed-off-by: Lei Yang <Lei.Yang(a)windriver.com> --- tools/testing/selftests/kselftest.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index d6732ba312ef..acc98a5c3d73 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -57,7 +57,7 @@ static inline int ksft_get_error_cnt(void) { return ksft_cnt.ksft_error; } static inline void ksft_print_header(void) { - if (!(getenv("KSFT_TAP_LEVEL")) + if (!(getenv("KSFT_TAP_LEVEL"))) printf("TAP version 13\n"); } -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

7 years, 1 month

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Re: [Linux-kselftest-mirror] [PATCH] selftests: memfd_test.c: fix compilation warning.

by lei yang

I got the same warning even with ubuntu new distro, this patch fixed this issue. $ gcc --version gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406 Copyright (C) 2016 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $ make -v GNU Make 4.1 Built for x86_64-pc-linux-gnu Copyright (C) 1988-2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. $ uname -a Linux pek-lyang0-u17 4.10.0-38-generic #42-Ubuntu SMP Tue Oct 10 13:24:27 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux --------------------- memfd_test.c: In function mfd_assert_grow_write: memfd_test.c:517:19: warning: format %d expects argument of type int, but argument 2 has type size_t {aka long unsigned int} [-Wformat=] printf("malloc(%d) failed: %m\n", mfd_def_size * 8); ^ memfd_test.c: In function mfd_fail_grow_write: memfd_test.c:537:19: warning: format %d expects argument of type int, but argument 2 has type size_t {aka long unsigned int} [-Wformat=] printf("malloc(%d) failed: %m\n", mfd_def_size * 8); Lei On 2017年11月07日 07:46, Shuah Khan wrote: > On 11/05/2017 03:56 AM, Lei Yang wrote: >> Replace '%d' by '%zu' to fix the following compilation warning. >> >> memfd_test.c:517:3: warning: format ‘%d’ expects argument of >> type ‘int’,but argument 2 has type ‘size_t’ [-Wformat=] >> printf("malloc(%d) failed: %m\n", mfd_def_size * 8); >> ^ >> memfd_test.c: In function ‘mfd_fail_grow_write’: >> memfd_test.c:537:3: warning: format ‘%d’ expects argument >> of type ‘int’,but argument 2 has type ‘size_t’ [-Wformat=] >> printf("malloc(%d) failed: %m\n", mfd_def_size * 8); >> >> Signed-off-by: Lei Yang <Lei.Yang(a)windriver.com> >> --- >> tools/testing/selftests/memfd/memfd_test.c | 4 ++-- >> 1 file changed, 2 insertions(+), 2 deletions(-) >> >> diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c >> index f94c6d1..95df9e6 100644 >> --- a/tools/testing/selftests/memfd/memfd_test.c >> +++ b/tools/testing/selftests/memfd/memfd_test.c >> @@ -514,7 +514,7 @@ static void mfd_assert_grow_write(int fd) >> >> buf = malloc(mfd_def_size * 8); >> if (!buf) { >> - printf("malloc(%d) failed: %m\n", mfd_def_size * 8); >> + printf("malloc(%zu) failed: %m\n", mfd_def_size * 8); >> abort(); >> } >> >> @@ -534,7 +534,7 @@ static void mfd_fail_grow_write(int fd) >> >> buf = malloc(mfd_def_size * 8); >> if (!buf) { >> - printf("malloc(%d) failed: %m\n", mfd_def_size * 8); >> + printf("malloc(%zu) failed: %m\n", mfd_def_size * 8); >> abort(); >> } >> >> > Relates to gcc version perhaps. What's your gcc version? > > thanks, > -- Shuah -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

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Linux-kselftest-mirror November 2017