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[PATCH AUTOSEL 4.19 148/172] selftests/vm/pkeys: fix alloc_random_pkey() to make it really random
by Sasha Levin
From: Ram Pai <linuxram(a)us.ibm.com> [ Upstream commit 6e373263ce07eeaa6410843179535fbdf561fc31 ] alloc_random_pkey() was allocating the same pkey every time. Not all pkeys were geting tested. This fixes it. Signed-off-by: Ram Pai <linuxram(a)us.ibm.com> Signed-off-by: Sandipan Das <sandipan(a)linux.ibm.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Acked-by: Dave Hansen <dave.hansen(a)intel.com> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: Florian Weimer <fweimer(a)redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn(a)linux.vnet.ibm.com> Cc: Ingo Molnar <mingo(a)kernel.org> Cc: Thiago Jung Bauermann <bauerman(a)linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)linux.ibm.com> Cc: Michael Ellerman <mpe(a)ellerman.id.au> Cc: Michal Hocko <mhocko(a)kernel.org> Cc: Michal Suchanek <msuchanek(a)suse.de> Cc: Shuah Khan <shuah(a)kernel.org> Link:
http://lkml.kernel.org/r/0162f55816d4e783a0d6e49e554d0ab9a3c9a23b.158564652…
Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/x86/protection_keys.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c index 5d546dcdbc80..b8778960da10 100644 --- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -24,6 +24,7 @@ #define _GNU_SOURCE #include <errno.h> #include <linux/futex.h> +#include <time.h> #include <sys/time.h> #include <sys/syscall.h> #include <string.h> @@ -612,10 +613,10 @@ int alloc_random_pkey(void) int nr_alloced = 0; int random_index; memset(alloced_pkeys, 0, sizeof(alloced_pkeys)); + srand((unsigned int)time(NULL)); /* allocate every possible key and make a note of which ones we got */ max_nr_pkey_allocs = NR_PKEYS; - max_nr_pkey_allocs = 1; for (i = 0; i < max_nr_pkey_allocs; i++) { int new_pkey = alloc_pkey(); if (new_pkey < 0) -- 2.25.1
4 years, 5 months
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[PATCH AUTOSEL 5.4 247/266] selftests/net: in timestamping, strncpy needs to preserve null byte
by Sasha Levin
From: tannerlove <tannerlove(a)google.com> [ Upstream commit 8027bc0307ce59759b90679fa5d8b22949586d20 ] If user passed an interface option longer than 15 characters, then device.ifr_name and hwtstamp.ifr_name became non-null-terminated strings. The compiler warned about this: timestamping.c:353:2: warning: ‘strncpy’ specified bound 16 equals \ destination size [-Wstringop-truncation] 353 | strncpy(device.ifr_name, interface, sizeof(device.ifr_name)); Fixes: cb9eff097831 ("net: new user space API for time stamping of incoming and outgoing packets") Signed-off-by: Tanner Love <tannerlove(a)google.com> Acked-by: Willem de Bruijn <willemb(a)google.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/networking/timestamping/timestamping.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/networking/timestamping/timestamping.c b/tools/testing/selftests/networking/timestamping/timestamping.c index aca3491174a1..f4bb4fef0f39 100644 --- a/tools/testing/selftests/networking/timestamping/timestamping.c +++ b/tools/testing/selftests/networking/timestamping/timestamping.c @@ -313,10 +313,16 @@ int main(int argc, char **argv) int val; socklen_t len; struct timeval next; + size_t if_len; if (argc < 2) usage(0); interface = argv[1]; + if_len = strlen(interface); + if (if_len >= IFNAMSIZ) { + printf("interface name exceeds IFNAMSIZ\n"); + exit(1); + } for (i = 2; i < argc; i++) { if (!strcasecmp(argv[i], "SO_TIMESTAMP")) @@ -350,12 +356,12 @@ int main(int argc, char **argv) bail("socket"); memset(&device, 0, sizeof(device)); - strncpy(device.ifr_name, interface, sizeof(device.ifr_name)); + memcpy(device.ifr_name, interface, if_len + 1); if (ioctl(sock, SIOCGIFADDR, &device) < 0) bail("getting interface IP address"); memset(&hwtstamp, 0, sizeof(hwtstamp)); - strncpy(hwtstamp.ifr_name, interface, sizeof(hwtstamp.ifr_name)); + memcpy(hwtstamp.ifr_name, interface, if_len + 1); hwtstamp.ifr_data = (void *)&hwconfig; memset(&hwconfig, 0, sizeof(hwconfig)); hwconfig.tx_type = -- 2.25.1
4 years, 5 months
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[PATCH AUTOSEL 5.4 244/266] NTB: ntb_test: Fix bug when counting remote files
by Sasha Levin
From: Logan Gunthorpe <logang(a)deltatee.com> [ Upstream commit 2130c0ba69d69bb21f5c52787f2587db00d13d8a ] When remote files are counted in get_files_count, without using SSH, the code returns 0 because there is a colon prepended to $LOC. $VPATH should have been used instead of $LOC. Fixes: 06bd0407d06c ("NTB: ntb_test: Update ntb_tool Scratchpad tests") Signed-off-by: Logan Gunthorpe <logang(a)deltatee.com> Acked-by: Allen Hubbe <allenbh(a)gmail.com> Tested-by: Alexander Fomichev <fomichev.ru(a)gmail.com> Signed-off-by: Jon Mason <jdmason(a)kudzu.us> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/ntb/ntb_test.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh index 9c60337317c6..020137b61407 100755 --- a/tools/testing/selftests/ntb/ntb_test.sh +++ b/tools/testing/selftests/ntb/ntb_test.sh @@ -241,7 +241,7 @@ function get_files_count() split_remote $LOC if [[ "$REMOTE" == "" ]]; then - echo $(ls -1 "$LOC"/${NAME}* 2>/dev/null | wc -l) + echo $(ls -1 "$VPATH"/${NAME}* 2>/dev/null | wc -l) else echo $(ssh "$REMOTE" "ls -1 \"$VPATH\"/${NAME}* | \ wc -l" 2> /dev/null) -- 2.25.1
4 years, 5 months
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[PATCH AUTOSEL 5.4 231/266] selftests/vm/pkeys: fix alloc_random_pkey() to make it really random
by Sasha Levin
From: Ram Pai <linuxram(a)us.ibm.com> [ Upstream commit 6e373263ce07eeaa6410843179535fbdf561fc31 ] alloc_random_pkey() was allocating the same pkey every time. Not all pkeys were geting tested. This fixes it. Signed-off-by: Ram Pai <linuxram(a)us.ibm.com> Signed-off-by: Sandipan Das <sandipan(a)linux.ibm.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Acked-by: Dave Hansen <dave.hansen(a)intel.com> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: Florian Weimer <fweimer(a)redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn(a)linux.vnet.ibm.com> Cc: Ingo Molnar <mingo(a)kernel.org> Cc: Thiago Jung Bauermann <bauerman(a)linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)linux.ibm.com> Cc: Michael Ellerman <mpe(a)ellerman.id.au> Cc: Michal Hocko <mhocko(a)kernel.org> Cc: Michal Suchanek <msuchanek(a)suse.de> Cc: Shuah Khan <shuah(a)kernel.org> Link:
http://lkml.kernel.org/r/0162f55816d4e783a0d6e49e554d0ab9a3c9a23b.158564652…
Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/x86/protection_keys.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c index 480995bceefa..47191af46617 100644 --- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -24,6 +24,7 @@ #define _GNU_SOURCE #include <errno.h> #include <linux/futex.h> +#include <time.h> #include <sys/time.h> #include <sys/syscall.h> #include <string.h> @@ -612,10 +613,10 @@ int alloc_random_pkey(void) int nr_alloced = 0; int random_index; memset(alloced_pkeys, 0, sizeof(alloced_pkeys)); + srand((unsigned int)time(NULL)); /* allocate every possible key and make a note of which ones we got */ max_nr_pkey_allocs = NR_PKEYS; - max_nr_pkey_allocs = 1; for (i = 0; i < max_nr_pkey_allocs; i++) { int new_pkey = alloc_pkey(); if (new_pkey < 0) -- 2.25.1
4 years, 5 months
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[PATCH AUTOSEL 5.7 387/388] libbpf: Support pre-initializing .bss global variables
by Sasha Levin
From: Andrii Nakryiko <andriin(a)fb.com> [ Upstream commit caf62492f479585296e9d636c798d5ac256b7b04 ] Remove invalid assumption in libbpf that .bss map doesn't have to be updated in kernel. With addition of skeleton and memory-mapped initialization image, .bss doesn't have to be all zeroes when BPF map is created, because user-code might have initialized those variables from user-space. Fixes: eba9c5f498a1 ("libbpf: Refactor global data map initialization") Signed-off-by: Andrii Nakryiko <andriin(a)fb.com> Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Link:
https://lore.kernel.org/bpf/20200612194504.557844-1-andriin@fb.com
Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/lib/bpf/libbpf.c | 4 -- .../selftests/bpf/prog_tests/skeleton.c | 45 ++++++++++++++++--- .../selftests/bpf/progs/test_skeleton.c | 19 ++++++-- 3 files changed, 55 insertions(+), 13 deletions(-) diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 8f480e29a6b0..7d80bb1fea4c 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -3455,10 +3455,6 @@ bpf_object__populate_internal_map(struct bpf_object *obj, struct bpf_map *map) char *cp, errmsg[STRERR_BUFSIZE]; int err, zero = 0; - /* kernel already zero-initializes .bss map. */ - if (map_type == LIBBPF_MAP_BSS) - return 0; - err = bpf_map_update_elem(map->fd, &zero, map->mmaped, 0); if (err) { err = -errno; diff --git a/tools/testing/selftests/bpf/prog_tests/skeleton.c b/tools/testing/selftests/bpf/prog_tests/skeleton.c index 9264a2736018..fa153cf67b1b 100644 --- a/tools/testing/selftests/bpf/prog_tests/skeleton.c +++ b/tools/testing/selftests/bpf/prog_tests/skeleton.c @@ -15,6 +15,8 @@ void test_skeleton(void) int duration = 0, err; struct test_skeleton* skel; struct test_skeleton__bss *bss; + struct test_skeleton__data *data; + struct test_skeleton__rodata *rodata; struct test_skeleton__kconfig *kcfg; skel = test_skeleton__open(); @@ -24,13 +26,45 @@ void test_skeleton(void) if (CHECK(skel->kconfig, "skel_kconfig", "kconfig is mmaped()!\n")) goto cleanup; + bss = skel->bss; + data = skel->data; + rodata = skel->rodata; + + /* validate values are pre-initialized correctly */ + CHECK(data->in1 != -1, "in1", "got %d != exp %d\n", data->in1, -1); + CHECK(data->out1 != -1, "out1", "got %d != exp %d\n", data->out1, -1); + CHECK(data->in2 != -1, "in2", "got %lld != exp %lld\n", data->in2, -1LL); + CHECK(data->out2 != -1, "out2", "got %lld != exp %lld\n", data->out2, -1LL); + + CHECK(bss->in3 != 0, "in3", "got %d != exp %d\n", bss->in3, 0); + CHECK(bss->out3 != 0, "out3", "got %d != exp %d\n", bss->out3, 0); + CHECK(bss->in4 != 0, "in4", "got %lld != exp %lld\n", bss->in4, 0LL); + CHECK(bss->out4 != 0, "out4", "got %lld != exp %lld\n", bss->out4, 0LL); + + CHECK(rodata->in6 != 0, "in6", "got %d != exp %d\n", rodata->in6, 0); + CHECK(bss->out6 != 0, "out6", "got %d != exp %d\n", bss->out6, 0); + + /* validate we can pre-setup global variables, even in .bss */ + data->in1 = 10; + data->in2 = 11; + bss->in3 = 12; + bss->in4 = 13; + rodata->in6 = 14; + err = test_skeleton__load(skel); if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err)) goto cleanup; - bss = skel->bss; - bss->in1 = 1; - bss->in2 = 2; + /* validate pre-setup values are still there */ + CHECK(data->in1 != 10, "in1", "got %d != exp %d\n", data->in1, 10); + CHECK(data->in2 != 11, "in2", "got %lld != exp %lld\n", data->in2, 11LL); + CHECK(bss->in3 != 12, "in3", "got %d != exp %d\n", bss->in3, 12); + CHECK(bss->in4 != 13, "in4", "got %lld != exp %lld\n", bss->in4, 13LL); + CHECK(rodata->in6 != 14, "in6", "got %d != exp %d\n", rodata->in6, 14); + + /* now set new values and attach to get them into outX variables */ + data->in1 = 1; + data->in2 = 2; bss->in3 = 3; bss->in4 = 4; bss->in5.a = 5; @@ -44,14 +78,15 @@ void test_skeleton(void) /* trigger tracepoint */ usleep(1); - CHECK(bss->out1 != 1, "res1", "got %d != exp %d\n", bss->out1, 1); - CHECK(bss->out2 != 2, "res2", "got %lld != exp %d\n", bss->out2, 2); + CHECK(data->out1 != 1, "res1", "got %d != exp %d\n", data->out1, 1); + CHECK(data->out2 != 2, "res2", "got %lld != exp %d\n", data->out2, 2); CHECK(bss->out3 != 3, "res3", "got %d != exp %d\n", (int)bss->out3, 3); CHECK(bss->out4 != 4, "res4", "got %lld != exp %d\n", bss->out4, 4); CHECK(bss->handler_out5.a != 5, "res5", "got %d != exp %d\n", bss->handler_out5.a, 5); CHECK(bss->handler_out5.b != 6, "res6", "got %lld != exp %d\n", bss->handler_out5.b, 6); + CHECK(bss->out6 != 14, "res7", "got %d != exp %d\n", bss->out6, 14); CHECK(bss->bpf_syscall != kcfg->CONFIG_BPF_SYSCALL, "ext1", "got %d != exp %d\n", bss->bpf_syscall, kcfg->CONFIG_BPF_SYSCALL); diff --git a/tools/testing/selftests/bpf/progs/test_skeleton.c b/tools/testing/selftests/bpf/progs/test_skeleton.c index de03a90f78ca..77ae86f44db5 100644 --- a/tools/testing/selftests/bpf/progs/test_skeleton.c +++ b/tools/testing/selftests/bpf/progs/test_skeleton.c @@ -10,16 +10,26 @@ struct s { long long b; } __attribute__((packed)); -int in1 = 0; -long long in2 = 0; +/* .data section */ +int in1 = -1; +long long in2 = -1; + +/* .bss section */ char in3 = '\0'; long long in4 __attribute__((aligned(64))) = 0; struct s in5 = {}; -long long out2 = 0; +/* .rodata section */ +const volatile int in6 = 0; + +/* .data section */ +int out1 = -1; +long long out2 = -1; + +/* .bss section */ char out3 = 0; long long out4 = 0; -int out1 = 0; +int out6 = 0; extern bool CONFIG_BPF_SYSCALL __kconfig; extern int LINUX_KERNEL_VERSION __kconfig; @@ -36,6 +46,7 @@ int handler(const void *ctx) out3 = in3; out4 = in4; out5 = in5; + out6 = in6; bpf_syscall = CONFIG_BPF_SYSCALL; kern_ver = LINUX_KERNEL_VERSION; -- 2.25.1
4 years, 5 months
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[PATCH AUTOSEL 5.7 359/388] selftests/net: in timestamping, strncpy needs to preserve null byte
by Sasha Levin
From: tannerlove <tannerlove(a)google.com> [ Upstream commit 8027bc0307ce59759b90679fa5d8b22949586d20 ] If user passed an interface option longer than 15 characters, then device.ifr_name and hwtstamp.ifr_name became non-null-terminated strings. The compiler warned about this: timestamping.c:353:2: warning: ‘strncpy’ specified bound 16 equals \ destination size [-Wstringop-truncation] 353 | strncpy(device.ifr_name, interface, sizeof(device.ifr_name)); Fixes: cb9eff097831 ("net: new user space API for time stamping of incoming and outgoing packets") Signed-off-by: Tanner Love <tannerlove(a)google.com> Acked-by: Willem de Bruijn <willemb(a)google.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/net/timestamping.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/timestamping.c b/tools/testing/selftests/net/timestamping.c index aca3491174a1..f4bb4fef0f39 100644 --- a/tools/testing/selftests/net/timestamping.c +++ b/tools/testing/selftests/net/timestamping.c @@ -313,10 +313,16 @@ int main(int argc, char **argv) int val; socklen_t len; struct timeval next; + size_t if_len; if (argc < 2) usage(0); interface = argv[1]; + if_len = strlen(interface); + if (if_len >= IFNAMSIZ) { + printf("interface name exceeds IFNAMSIZ\n"); + exit(1); + } for (i = 2; i < argc; i++) { if (!strcasecmp(argv[i], "SO_TIMESTAMP")) @@ -350,12 +356,12 @@ int main(int argc, char **argv) bail("socket"); memset(&device, 0, sizeof(device)); - strncpy(device.ifr_name, interface, sizeof(device.ifr_name)); + memcpy(device.ifr_name, interface, if_len + 1); if (ioctl(sock, SIOCGIFADDR, &device) < 0) bail("getting interface IP address"); memset(&hwtstamp, 0, sizeof(hwtstamp)); - strncpy(hwtstamp.ifr_name, interface, sizeof(hwtstamp.ifr_name)); + memcpy(hwtstamp.ifr_name, interface, if_len + 1); hwtstamp.ifr_data = (void *)&hwconfig; memset(&hwconfig, 0, sizeof(hwconfig)); hwconfig.tx_type = -- 2.25.1
4 years, 5 months
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[PATCH AUTOSEL 5.7 354/388] NTB: ntb_test: Fix bug when counting remote files
by Sasha Levin
From: Logan Gunthorpe <logang(a)deltatee.com> [ Upstream commit 2130c0ba69d69bb21f5c52787f2587db00d13d8a ] When remote files are counted in get_files_count, without using SSH, the code returns 0 because there is a colon prepended to $LOC. $VPATH should have been used instead of $LOC. Fixes: 06bd0407d06c ("NTB: ntb_test: Update ntb_tool Scratchpad tests") Signed-off-by: Logan Gunthorpe <logang(a)deltatee.com> Acked-by: Allen Hubbe <allenbh(a)gmail.com> Tested-by: Alexander Fomichev <fomichev.ru(a)gmail.com> Signed-off-by: Jon Mason <jdmason(a)kudzu.us> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/ntb/ntb_test.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh index 9c60337317c6..020137b61407 100755 --- a/tools/testing/selftests/ntb/ntb_test.sh +++ b/tools/testing/selftests/ntb/ntb_test.sh @@ -241,7 +241,7 @@ function get_files_count() split_remote $LOC if [[ "$REMOTE" == "" ]]; then - echo $(ls -1 "$LOC"/${NAME}* 2>/dev/null | wc -l) + echo $(ls -1 "$VPATH"/${NAME}* 2>/dev/null | wc -l) else echo $(ssh "$REMOTE" "ls -1 \"$VPATH\"/${NAME}* | \ wc -l" 2> /dev/null) -- 2.25.1
4 years, 5 months
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[PATCH AUTOSEL 5.7 342/388] KVM: selftests: Fix build with "make ARCH=x86_64"
by Sasha Levin
From: Vitaly Kuznetsov <vkuznets(a)redhat.com> [ Upstream commit b80db73dc8be7022adae1b4414a1bebce50fe915 ] Marcelo reports that kvm selftests fail to build with "make ARCH=x86_64": gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../tools/arch/x86_64/include -I../../../../usr/include/ -Iinclude -Ilib -Iinclude/x86_64 -I.. -c lib/kvm_util.c -o /var/tmp/20200604202744-bin/lib/kvm_util.o In file included from lib/kvm_util.c:11: include/x86_64/processor.h:14:10: fatal error: asm/msr-index.h: No such file or directory #include <asm/msr-index.h> ^~~~~~~~~~~~~~~~~ compilation terminated. "make ARCH=x86", however, works. The problem is that arch specific headers for x86_64 live in 'tools/arch/x86/include', not in 'tools/arch/x86_64/include'. Fixes: 66d69e081b52 ("selftests: fix kvm relocatable native/cross builds and installs") Reported-by: Marcelo Bandeira Condotta <mcondotta(a)redhat.com> Signed-off-by: Vitaly Kuznetsov <vkuznets(a)redhat.com> Message-Id: <20200605142028.550068-1-vkuznets(a)redhat.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/Makefile | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index 42f4f49f2a48..2c85b9dd86f5 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -80,7 +80,11 @@ LIBKVM += $(LIBKVM_$(UNAME_M)) INSTALL_HDR_PATH = $(top_srcdir)/usr LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/ LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include +ifeq ($(ARCH),x86_64) +LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/x86/include +else LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include +endif CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \ -fno-stack-protector -fno-PIE -I$(LINUX_TOOL_INCLUDE) \ -I$(LINUX_TOOL_ARCH_INCLUDE) -I$(LINUX_HDR_PATH) -Iinclude \ -- 2.25.1
4 years, 5 months
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[PATCH AUTOSEL 5.7 338/388] selftests/vm/pkeys: fix alloc_random_pkey() to make it really random
by Sasha Levin
From: Ram Pai <linuxram(a)us.ibm.com> [ Upstream commit 6e373263ce07eeaa6410843179535fbdf561fc31 ] alloc_random_pkey() was allocating the same pkey every time. Not all pkeys were geting tested. This fixes it. Signed-off-by: Ram Pai <linuxram(a)us.ibm.com> Signed-off-by: Sandipan Das <sandipan(a)linux.ibm.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Acked-by: Dave Hansen <dave.hansen(a)intel.com> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: Florian Weimer <fweimer(a)redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn(a)linux.vnet.ibm.com> Cc: Ingo Molnar <mingo(a)kernel.org> Cc: Thiago Jung Bauermann <bauerman(a)linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar(a)linux.ibm.com> Cc: Michael Ellerman <mpe(a)ellerman.id.au> Cc: Michal Hocko <mhocko(a)kernel.org> Cc: Michal Suchanek <msuchanek(a)suse.de> Cc: Shuah Khan <shuah(a)kernel.org> Link:
http://lkml.kernel.org/r/0162f55816d4e783a0d6e49e554d0ab9a3c9a23b.158564652…
Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/x86/protection_keys.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c index 480995bceefa..47191af46617 100644 --- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -24,6 +24,7 @@ #define _GNU_SOURCE #include <errno.h> #include <linux/futex.h> +#include <time.h> #include <sys/time.h> #include <sys/syscall.h> #include <string.h> @@ -612,10 +613,10 @@ int alloc_random_pkey(void) int nr_alloced = 0; int random_index; memset(alloced_pkeys, 0, sizeof(alloced_pkeys)); + srand((unsigned int)time(NULL)); /* allocate every possible key and make a note of which ones we got */ max_nr_pkey_allocs = NR_PKEYS; - max_nr_pkey_allocs = 1; for (i = 0; i < max_nr_pkey_allocs; i++) { int new_pkey = alloc_pkey(); if (new_pkey < 0) -- 2.25.1
4 years, 5 months
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[PATCH AUTOSEL 5.7 262/388] selftests/timens: handle a case when alarm clocks are not supported
by Sasha Levin
From: Andrei Vagin <avagin(a)gmail.com> [ Upstream commit 558ae0355a91c7d28fdf4c0011bee6ebb5118632 ] This can happen if a testing node doesn't have RTC (real time clock) hardware or it doesn't support alarms. Fixes: 61c57676035d ("selftests/timens: Add Time Namespace test for supported clocks") Acked-by: Vincenzo Frascino <vincenzo.frascino(a)arm.com> Reported-by: Vincenzo Frascino <vincenzo.frascino(a)arm.com> Signed-off-by: Andrei Vagin <avagin(a)gmail.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/timens/clock_nanosleep.c | 2 +- tools/testing/selftests/timens/timens.c | 2 +- tools/testing/selftests/timens/timens.h | 13 ++++++++++++- tools/testing/selftests/timens/timer.c | 5 +++++ tools/testing/selftests/timens/timerfd.c | 5 +++++ 5 files changed, 24 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/timens/clock_nanosleep.c b/tools/testing/selftests/timens/clock_nanosleep.c index 8e7b7c72ef65..72d41b955fb2 100644 --- a/tools/testing/selftests/timens/clock_nanosleep.c +++ b/tools/testing/selftests/timens/clock_nanosleep.c @@ -119,7 +119,7 @@ int main(int argc, char *argv[]) ksft_set_plan(4); - check_config_posix_timers(); + check_supported_timers(); if (unshare_timens()) return 1; diff --git a/tools/testing/selftests/timens/timens.c b/tools/testing/selftests/timens/timens.c index 098be7c83be3..52b6a1185f52 100644 --- a/tools/testing/selftests/timens/timens.c +++ b/tools/testing/selftests/timens/timens.c @@ -155,7 +155,7 @@ int main(int argc, char *argv[]) nscheck(); - check_config_posix_timers(); + check_supported_timers(); ksft_set_plan(ARRAY_SIZE(clocks) * 2); diff --git a/tools/testing/selftests/timens/timens.h b/tools/testing/selftests/timens/timens.h index e09e7e39bc52..d4fc52d47146 100644 --- a/tools/testing/selftests/timens/timens.h +++ b/tools/testing/selftests/timens/timens.h @@ -14,15 +14,26 @@ #endif static int config_posix_timers = true; +static int config_alarm_timers = true; -static inline void check_config_posix_timers(void) +static inline void check_supported_timers(void) { + struct timespec ts; + if (timer_create(-1, 0, 0) == -1 && errno == ENOSYS) config_posix_timers = false; + + if (clock_gettime(CLOCK_BOOTTIME_ALARM, &ts) == -1 && errno == EINVAL) + config_alarm_timers = false; } static inline bool check_skip(int clockid) { + if (!config_alarm_timers && clockid == CLOCK_BOOTTIME_ALARM) { + ksft_test_result_skip("CLOCK_BOOTTIME_ALARM isn't supported\n"); + return true; + } + if (config_posix_timers) return false; diff --git a/tools/testing/selftests/timens/timer.c b/tools/testing/selftests/timens/timer.c index 96dba11ebe44..5e7f0051bd7b 100644 --- a/tools/testing/selftests/timens/timer.c +++ b/tools/testing/selftests/timens/timer.c @@ -22,6 +22,9 @@ int run_test(int clockid, struct timespec now) timer_t fd; int i; + if (check_skip(clockid)) + return 0; + for (i = 0; i < 2; i++) { struct sigevent sevp = {.sigev_notify = SIGEV_NONE}; int flags = 0; @@ -74,6 +77,8 @@ int main(int argc, char *argv[]) nscheck(); + check_supported_timers(); + ksft_set_plan(3); clock_gettime(CLOCK_MONOTONIC, &mtime_now); diff --git a/tools/testing/selftests/timens/timerfd.c b/tools/testing/selftests/timens/timerfd.c index eff1ec5ff215..9edd43d6b2c1 100644 --- a/tools/testing/selftests/timens/timerfd.c +++ b/tools/testing/selftests/timens/timerfd.c @@ -28,6 +28,9 @@ int run_test(int clockid, struct timespec now) long long elapsed; int fd, i; + if (check_skip(clockid)) + return 0; + if (tclock_gettime(clockid, &now)) return pr_perror("clock_gettime(%d)", clockid); @@ -81,6 +84,8 @@ int main(int argc, char *argv[]) nscheck(); + check_supported_timers(); + ksft_set_plan(3); clock_gettime(CLOCK_MONOTONIC, &mtime_now); -- 2.25.1
4 years, 5 months
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