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[PATCH] selftests/mm: centralize the __always_unused macro

by Muhammad Usama Anjum

This macro gets used in different tests. Add it to kselftest.h which is central location and tests use this header. Then use this new macro. Signed-off-by: Muhammad Usama Anjum <usama.anjum(a)collabora.com> --- tools/testing/selftests/kselftest.h | 4 ++++ tools/testing/selftests/mm/protection_keys.c | 2 +- tools/testing/selftests/net/ovpn/ovpn-cli.c | 3 ++- 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index 661d31c4b558c..274480e3573ab 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -92,6 +92,10 @@ #endif #define __printf(a, b) __attribute__((format(printf, a, b))) +#ifndef __always_unused +#define __always_unused __attribute__((__unused__)) +#endif + #ifndef __maybe_unused #define __maybe_unused __attribute__((__unused__)) #endif diff --git a/tools/testing/selftests/mm/protection_keys.c b/tools/testing/selftests/mm/protection_keys.c index 6281d4c61b50e..2085982dba696 100644 --- a/tools/testing/selftests/mm/protection_keys.c +++ b/tools/testing/selftests/mm/protection_keys.c @@ -1302,7 +1302,7 @@ static void test_mprotect_with_pkey_0(int *ptr, u16 pkey) static void test_ptrace_of_child(int *ptr, u16 pkey) { - __attribute__((__unused__)) int peek_result; + __always_unused int peek_result; pid_t child_pid; void *ignored = 0; long ret; diff --git a/tools/testing/selftests/net/ovpn/ovpn-cli.c b/tools/testing/selftests/net/ovpn/ovpn-cli.c index 9201f2905f2ce..688a5fa6fdacd 100644 --- a/tools/testing/selftests/net/ovpn/ovpn-cli.c +++ b/tools/testing/selftests/net/ovpn/ovpn-cli.c @@ -32,9 +32,10 @@ #include <sys/socket.h> +#include "../../kselftest.h" + /* defines to make checkpatch happy */ #define strscpy strncpy -#define __always_unused __attribute__((__unused__)) /* libnl < 3.5.0 does not set the NLA_F_NESTED on its own, therefore we * have to explicitly do it to prevent the kernel from failing upon -- 2.47.3

3 months, 2 weeks

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[PATCH v3 0/3] Fix va_high_addr_switch.sh test failure

by Chunyu Hu

The three patches fix the va_high_addr_switch.sh test failure on x86_64. Patch 1 fixes the hugepage setup issue that nr_hugepages is reset too early in run_vmtests.sh and break the later va_high_addr_switch testing. Patch 2 adds hugepage setup in va_high_addr_switch test, so that it can still work if vm_runtests.sh changes the hugepage setup someday. Patch 3 fixes the test failure caused by the hint addr align method change in hugetlb_get_unmapped_area(). Changes in v3: - patch 1 adds the Acked-by from David - patch 3 changes the mmap hint addr to hugepage aligned from page aligned Changes in v2: - patch 1 renames nr_hugepgs_origin to orig_nr_hugepgs - add a patch 2 to setup hugeapges in va_high_addr_switch test Chunyu Hu (3): selftests/mm: fix hugepages cleanup too early selftests/mm: alloc hugepages in va_high_addr_switch test selftests/mm: fix va_high_addr_switch.sh failure on x86_64 tools/testing/selftests/mm/run_vmtests.sh | 9 ++++- .../selftests/mm/va_high_addr_switch.c | 4 +- .../selftests/mm/va_high_addr_switch.sh | 37 +++++++++++++++++++ 3 files changed, 46 insertions(+), 4 deletions(-) -- 2.49.0

3 months, 2 weeks

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[PATCH] mm: transhuge-stress: fix potential memory leak on realloc failure

by Haofeng Li

From: Haofeng Li <lihaofeng(a)kylinos.cn> When realloc() fails in transhuge-stress test, the original code exits immediately without freeing the previously allocated memory, causing a memory leak. This patch introduces a temporary pointer to hold the realloc result, ensuring proper cleanup by freeing the original map before exiting on allocation failure. Signed-off-by: Haofeng Li <lihaofeng(a)kylinos.cn> --- tools/testing/selftests/mm/transhuge-stress.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/mm/transhuge-stress.c b/tools/testing/selftests/mm/transhuge-stress.c index 68201192e37c..cbe86c5b8de0 100644 --- a/tools/testing/selftests/mm/transhuge-stress.c +++ b/tools/testing/selftests/mm/transhuge-stress.c @@ -30,7 +30,7 @@ int main(int argc, char **argv) int i = 0; char *name = NULL; double s; - uint8_t *map; + uint8_t *map, *map_tmp; size_t map_len; int pagemap_fd; int duration = 0; @@ -107,9 +107,12 @@ int main(int argc, char **argv) nr_succeed++; if (idx >= map_len) { - map = realloc(map, idx + 1); - if (!map) + map_tmp = realloc(map, idx + 1); + if (!map_tmp) { + free(map); ksft_exit_fail_msg("map realloc\n"); + } + map = map_tmp; memset(map + map_len, 0, idx + 1 - map_len); map_len = idx + 1; } -- 2.25.1

3 months, 2 weeks

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New September Order. 93035 Friday, September 12, 2025 at 12:16:14 PM

by Info - Albinayah 868

Hi Linux-kselftest, Please provide a quote for your products: Include: 1.Pricing (per unit) 2.Delivery cost & timeline 3.Quote expiry date Deadline: September Thanks! Kamal Prasad Albinayah Trading

3 months, 2 weeks

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[PATCHv3 net-next 0/5] net: common feature compute for upper interface

by Hangbin Liu

Some high-level virtual drivers need to compute features from their lower devices, but each currently has its own implementation and may miss some feature computations. This patch set introduces a common function to compute features for such devices. Currently, bonding, team, and bridge have been updated to use the new helper. v3: a) fix hw_enc_features asign order (Sabrina Dubroca) b) set virtual dev feature defination in netdev_features.h (Jakub Kicinski) c) remove unneeded err in team_del_slave (Stanislav Fomichev) d) remove NETIF_F_HW_ESP test as it needs to be test with GSO pkts (Sabrina Dubroca) v2: a) remove hard_header_len setting. I will set needed_headroom for bond/team in a separate patch as bridge has it's own ways. (Ido Schimmel) b) Add test file to Makefile, set RET=0 to a proper location. (Ido Schimmel) Hangbin Liu (5): net: add a common function to compute features from lowers devices bonding: use common function to compute the features team: use common function to compute the features net: bridge: use common function to compute the features selftests/net: add offload checking test for virtual interface drivers/net/bonding/bond_main.c | 99 +------------- drivers/net/team/team_core.c | 78 +---------- include/linux/netdev_features.h | 18 +++ include/linux/netdevice.h | 1 + net/bridge/br_if.c | 22 +--- net/core/dev.c | 76 +++++++++++ tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/config | 1 + tools/testing/selftests/net/vdev_offload.sh | 137 ++++++++++++++++++++ 9 files changed, 246 insertions(+), 187 deletions(-) create mode 100755 tools/testing/selftests/net/vdev_offload.sh -- 2.50.1

3 months, 2 weeks

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[PATCH bpf-next v3 0/4] powerpc64/bpf: Add support for bpf arena and arena atomics

by Saket Kumar Bhaskar

This patch series introduces support for the PROBE_MEM32, bpf_addr_space_cast and PROBE_ATOMIC instructions in the powerpc BPF JIT, facilitating the implementation of BPF arena and arena atomics. All selftests related to bpf_arena, bpf_arena_atomic(except load_acquire/store_release) enablement are passing: # ./test_progs -t arena_list #5/1 arena_list/arena_list_1:OK #5/2 arena_list/arena_list_1000:OK #5 arena_list:OK Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED # ./test_progs -t arena_htab #4/1 arena_htab/arena_htab_llvm:OK #4/2 arena_htab/arena_htab_asm:OK #4 arena_htab:OK Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED # ./test_progs -t verifier_arena #464/1 verifier_arena/basic_alloc1:OK #464/2 verifier_arena/basic_alloc2:OK #464/3 verifier_arena/basic_alloc3:OK #464/4 verifier_arena/iter_maps1:OK #464/5 verifier_arena/iter_maps2:OK #464/6 verifier_arena/iter_maps3:OK #464 verifier_arena:OK #465/1 verifier_arena_large/big_alloc1:OK #465/2 verifier_arena_large/big_alloc2:OK #465 verifier_arena_large:OK Summary: 2/8 PASSED, 0 SKIPPED, 0 FAILED # ./test_progs -t arena_atomics #3/1 arena_atomics/add:OK #3/2 arena_atomics/sub:OK #3/3 arena_atomics/and:OK #3/4 arena_atomics/or:OK #3/5 arena_atomics/xor:OK #3/6 arena_atomics/cmpxchg:OK #3/7 arena_atomics/xchg:OK #3/8 arena_atomics/uaf:OK #3/9 arena_atomics/load_acquire:SKIP #3/10 arena_atomics/store_release:SKIP #3 arena_atomics:OK (SKIP: 2/10) Summary: 1/8 PASSED, 2 SKIPPED, 0 FAILED Changes since v2: * Dropped arena_spin_lock selftest fix patch from the patchset as it has to go via bpf-next while these changes will go via powerpc tree. v2:https://lore.kernel.org/all/20250829165135.1273071-1-skb99@linux.ibm.com/ Changes since v1: Addressed comments from Chris: * Squashed introduction of bpf_jit_emit_probe_mem_store() and its usage in one patch. * Defined and used PPC_RAW_RLDICL_DOT to avoid the CMPDI. * Removed conditional statement for fixup[0] = PPC_RAW_LI(dst_reg, 0); * Indicated this change is limited to powerpc64 in subject. Addressed comments from Alexei: * Removed skel->rodata->nr_cpus = get_nprocs() and its usage to get currently online cpus(as it needs to be updated from userspace). Addressed comments from Hari: * Updated the bpf jit stack layout and associated macros to accommodate new NVR. v1:https://lore.kernel.org/all/20250805062747.3479221-1-skb99@linux.ibm.com/ Saket Kumar Bhaskar (4): powerpc64/bpf: Implement PROBE_MEM32 pseudo instructions powerpc64/bpf: Implement bpf_addr_space_cast instruction powerpc64/bpf: Introduce bpf_jit_emit_atomic_ops() to emit atomic instructions powerpc64/bpf: Implement PROBE_ATOMIC instructions arch/powerpc/include/asm/ppc-opcode.h | 1 + arch/powerpc/net/bpf_jit.h | 6 +- arch/powerpc/net/bpf_jit_comp.c | 32 +- arch/powerpc/net/bpf_jit_comp32.c | 2 +- arch/powerpc/net/bpf_jit_comp64.c | 401 +++++++++++++++++++------- 5 files changed, 330 insertions(+), 112 deletions(-) -- 2.43.5

3 months, 2 weeks

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[PATCH net-next 1/2] selftests: Disable dad for ipv6 in fcnal-test.sh

by David Ahern

Constrained test environment; duplicate address detection is not needed and causes races so disable it. Signed-off-by: David Ahern <dsahern(a)kernel.org> --- tools/testing/selftests/net/fcnal-test.sh | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh index 69941520e8e5..068379a79651 100755 --- a/tools/testing/selftests/net/fcnal-test.sh +++ b/tools/testing/selftests/net/fcnal-test.sh @@ -424,6 +424,8 @@ create_ns() ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1 ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1 ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1 + ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0 + ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.accept_dad=0 } # create veth pair to connect namespaces and apply addresses. -- 2.43.0

3 months, 2 weeks

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[PATCH net-next 0/5] net: common feature compute for upper interface

by Hangbin Liu

Some high-level virtual drivers need to compute features from their lower devices, but each currently has its own implementation and may miss some feature computations. This patch set introduces a common function to compute features for such devices. Currently, bonding, team, and bridge have been updated to use the new helper. Hangbin Liu (5): net: add a common function to compute features from lowers devices bonding: use common function to compute the features team: use common function to compute the features net: bridge: use common function to compute the features selftests/net: add offload checking test for virtual interface drivers/net/bonding/bond_main.c | 99 +---------- drivers/net/team/team_core.c | 73 +------- include/linux/netdevice.h | 19 +++ net/bridge/br_if.c | 22 +-- net/core/dev.c | 79 +++++++++ tools/testing/selftests/net/config | 2 + tools/testing/selftests/net/vdev_offload.sh | 174 ++++++++++++++++++++ 7 files changed, 285 insertions(+), 183 deletions(-) create mode 100755 tools/testing/selftests/net/vdev_offload.sh -- 2.50.1

3 months, 2 weeks

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[PATCHv5 iproute2-next] iplink: bond_slave: add support for actor_port_prio

by Hangbin Liu

Add support for the actor_port_prio option for bond slaves. This per-port priority can be used by the bonding driver in ad_select to choose the higher-priority aggregator during failover. Signed-off-by: Hangbin Liu <liuhangbin(a)gmail.com> --- v5: rename port in ad_select_tbl to actor_port_prio v4: no update v3: rename ad_actor_port_prio to actor_port_prio v2: no update --- ip/iplink_bond.c | 1 + ip/iplink_bond_slave.c | 18 ++++++++++++++++-- man/man8/ip-link.8.in | 6 ++++++ 3 files changed, 23 insertions(+), 2 deletions(-) diff --git a/ip/iplink_bond.c b/ip/iplink_bond.c index d6960f6d9b03..3ae626a03e6e 100644 --- a/ip/iplink_bond.c +++ b/ip/iplink_bond.c @@ -91,6 +91,7 @@ static const char *ad_select_tbl[] = { "stable", "bandwidth", "count", + "actor_port_prio", NULL, }; diff --git a/ip/iplink_bond_slave.c b/ip/iplink_bond_slave.c index ad6875006950..c88100e248dd 100644 --- a/ip/iplink_bond_slave.c +++ b/ip/iplink_bond_slave.c @@ -15,7 +15,9 @@ static void print_explain(FILE *f) { - fprintf(f, "Usage: ... bond_slave [ queue_id ID ] [ prio PRIORITY ]\n"); + fprintf(f, "Usage: ... bond_slave [ queue_id ID ] [ prio PRIORITY ]\n" + " [ actor_port_prio PRIORITY ]\n" + ); } static void explain(void) @@ -145,12 +147,18 @@ static void bond_slave_print_opt(struct link_util *lu, FILE *f, struct rtattr *t state); print_slave_oper_state(f, "ad_partner_oper_port_state_str", state); } + + if (tb[IFLA_BOND_SLAVE_ACTOR_PORT_PRIO]) + print_int(PRINT_ANY, + "actor_port_prio", + "actor_port_prio %d ", + rta_getattr_u16(tb[IFLA_BOND_SLAVE_ACTOR_PORT_PRIO])); } static int bond_slave_parse_opt(struct link_util *lu, int argc, char **argv, struct nlmsghdr *n) { - __u16 queue_id; + __u16 queue_id, actor_port_prio; int prio; while (argc > 0) { @@ -164,6 +172,12 @@ static int bond_slave_parse_opt(struct link_util *lu, int argc, char **argv, if (get_s32(&prio, *argv, 0)) invarg("prio is invalid", *argv); addattr32(n, 1024, IFLA_BOND_SLAVE_PRIO, prio); + } else if (strcmp(*argv, "actor_port_prio") == 0) { + NEXT_ARG(); + if (get_u16(&actor_port_prio, *argv, 0)) + invarg("actor prio is invalid", *argv); + addattr16(n, 1024, IFLA_BOND_SLAVE_ACTOR_PORT_PRIO, + actor_port_prio); } else { if (matches(*argv, "help") != 0) fprintf(stderr, diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in index e3297c577152..7995943ab11f 100644 --- a/man/man8/ip-link.8.in +++ b/man/man8/ip-link.8.in @@ -2846,6 +2846,12 @@ the following additional arguments are supported: (a 32bit signed value). This option only valid for active-backup(1), balance-tlb (5) and balance-alb (6) mode. +.sp +.BI actor_port_prio " PRIORITY" +- set the slave's ad actor port priority for 802.3ad aggregation selection +logic during failover (a 16bit unsigned value). This option only valid for +802.3ad (4) mode. + .in -8 .TP -- 2.50.1

3 months, 2 weeks

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[PATCH v2 0/1] seccomp: Add SECCOMP_CLONE_FILTER operation

by Tom Hromatka

Add an operation, SECCOMP_CLONE_FILTER, that can copy the seccomp filters from another process to the current process. Changes from v1 to v2: * Fixed locking issues. Thanks Al, Alexei, and Kees :) * Allow filters to be cloned if CAP_SYS_ADMIN or no new privs is set * I initially had only CAP_SYS_ADMIN, but I can't think of a way no new privs is harmful here, so I added it. Thanks, Kees * Switch to passing in pidfd directly rather than a pointer to a pidfd * This more closely aligns with other pidfd syscalls * Fixed warning in the sample code reported by the test robot * Various cleanups and improvements in the selftest Note that I left in the restriction that the target process has no seccomp filters already loaded. I could see this limitation being removed in a later patchset, but there are requests for this feature at present. Finally, I re-ran the performance numbers and updated the patch with the latest numbers. The locking changes significantly sped up the clone operation, and it's now ~1900x faster than the current method. Tom Hromatka (1): seccomp: Add SECCOMP_CLONE_FILTER operation .../userspace-api/seccomp_filter.rst | 10 ++ include/uapi/linux/seccomp.h | 1 + kernel/seccomp.c | 48 ++++++ samples/seccomp/.gitignore | 1 + samples/seccomp/Makefile | 2 +- samples/seccomp/clone-filter.c | 150 ++++++++++++++++++ tools/include/uapi/linux/seccomp.h | 1 + tools/testing/selftests/seccomp/seccomp_bpf.c | 114 +++++++++++++ 8 files changed, 326 insertions(+), 1 deletion(-) create mode 100644 samples/seccomp/clone-filter.c -- 2.47.3

3 months, 2 weeks

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