diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cpu.c | 6 | ||||
| -rw-r--r-- | kernel/irq/affinity.c | 6 | ||||
| -rw-r--r-- | kernel/kcov.c | 8 | ||||
| -rw-r--r-- | kernel/kexec_file.c | 4 | ||||
| -rw-r--r-- | kernel/time/tick-broadcast.c | 3 |
5 files changed, 22 insertions, 5 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 217fd2e7f435..5339aca811d2 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -1586,7 +1586,11 @@ EXPORT_SYMBOL_GPL(__cpuhp_state_add_instance); * @startup: startup callback function * @teardown: teardown callback function * - * Returns 0 if successful, otherwise a proper error code + * Returns: + * On success: + * Positive state number if @state is CPUHP_AP_ONLINE_DYN + * 0 for all other states + * On failure: proper (negative) error code */ int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke, diff --git a/kernel/irq/affinity.c b/kernel/irq/affinity.c index 9be9bda7c1f9..4544b115f5eb 100644 --- a/kernel/irq/affinity.c +++ b/kernel/irq/affinity.c @@ -37,10 +37,10 @@ static void irq_spread_init_one(struct cpumask *irqmsk, struct cpumask *nmsk, static int get_nodes_in_cpumask(const struct cpumask *mask, nodemask_t *nodemsk) { - int n, nodes; + int n, nodes = 0; /* Calculate the number of nodes in the supplied affinity mask */ - for (n = 0, nodes = 0; n < num_online_nodes(); n++) { + for_each_online_node(n) { if (cpumask_intersects(mask, cpumask_of_node(n))) { node_set(n, *nodemsk); nodes++; @@ -82,7 +82,7 @@ irq_create_affinity_masks(int nvecs, const struct irq_affinity *affd) nodes = get_nodes_in_cpumask(cpu_online_mask, &nodemsk); /* - * If the number of nodes in the mask is less than or equal the + * If the number of nodes in the mask is greater than or equal the * number of vectors we just spread the vectors across the nodes. */ if (affv <= nodes) { diff --git a/kernel/kcov.c b/kernel/kcov.c index cc2fa35ca480..85e5546cd791 100644 --- a/kernel/kcov.c +++ b/kernel/kcov.c @@ -19,6 +19,7 @@ #include <linux/debugfs.h> #include <linux/uaccess.h> #include <linux/kcov.h> +#include <asm/setup.h> /* * kcov descriptor (one per opened debugfs file). @@ -73,6 +74,11 @@ void notrace __sanitizer_cov_trace_pc(void) if (mode == KCOV_MODE_TRACE) { unsigned long *area; unsigned long pos; + unsigned long ip = _RET_IP_; + +#ifdef CONFIG_RANDOMIZE_BASE + ip -= kaslr_offset(); +#endif /* * There is some code that runs in interrupts but for which @@ -86,7 +92,7 @@ void notrace __sanitizer_cov_trace_pc(void) /* The first word is number of subsequent PCs. */ pos = READ_ONCE(area[0]) + 1; if (likely(pos < t->kcov_size)) { - area[pos] = _RET_IP_; + area[pos] = ip; WRITE_ONCE(area[0], pos); } } diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c index 0c2df7f73792..b56a558e406d 100644 --- a/kernel/kexec_file.c +++ b/kernel/kexec_file.c @@ -19,6 +19,7 @@ #include <linux/mutex.h> #include <linux/list.h> #include <linux/fs.h> +#include <linux/ima.h> #include <crypto/hash.h> #include <crypto/sha.h> #include <linux/syscalls.h> @@ -132,6 +133,9 @@ kimage_file_prepare_segments(struct kimage *image, int kernel_fd, int initrd_fd, return ret; image->kernel_buf_len = size; + /* IMA needs to pass the measurement list to the next kernel. */ + ima_add_kexec_buffer(image); + /* Call arch image probe handlers */ ret = arch_kexec_kernel_image_probe(image, image->kernel_buf, image->kernel_buf_len); diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index f6aae7977824..d2a20e83ebae 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -871,6 +871,9 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) { int cpu = smp_processor_id(); + if (!bc) + return; + /* Set it up only once ! */ if (bc->event_handler != tick_handle_oneshot_broadcast) { int was_periodic = clockevent_state_periodic(bc); |