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-rw-r--r--arch/ia64/Kconfig3
-rw-r--r--arch/ia64/include/asm/bugs.h20
-rw-r--r--arch/ia64/include/asm/processor.h2
-rw-r--r--arch/ia64/include/asm/timex.h1
-rw-r--r--arch/ia64/kernel/acpi.c7
-rw-r--r--arch/ia64/kernel/kprobes.c78
-rw-r--r--arch/ia64/kernel/mca_drv.c3
-rw-r--r--arch/ia64/kernel/process.c2
-rw-r--r--arch/ia64/kernel/salinfo.c2
-rw-r--r--arch/ia64/kernel/setup.c3
-rw-r--r--arch/ia64/kernel/traps.c2
-rw-r--r--arch/ia64/mm/contig.c2
-rw-r--r--arch/ia64/mm/discontig.c2
-rw-r--r--arch/ia64/mm/fault.c2
-rw-r--r--arch/ia64/mm/tlb.c2
15 files changed, 94 insertions, 37 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 8b4a0c1748c0..58f63446c657 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -8,6 +8,7 @@ menu "Processor type and features"
config IA64
bool
+ select ARCH_HAS_CPU_FINALIZE_INIT
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select PCI if (!IA64_HP_SIM)
@@ -445,7 +446,7 @@ config ARCH_PROC_KCORE_TEXT
depends on PROC_KCORE
config IA64_MCA_RECOVERY
- tristate "MCA recovery from errors other than TLB."
+ bool "MCA recovery from errors other than TLB."
config PERFMON
bool "Performance monitor support"
diff --git a/arch/ia64/include/asm/bugs.h b/arch/ia64/include/asm/bugs.h
deleted file mode 100644
index 0d6b9bded56c..000000000000
--- a/arch/ia64/include/asm/bugs.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * This is included by init/main.c to check for architecture-dependent bugs.
- *
- * Needs:
- * void check_bugs(void);
- *
- * Based on <asm-alpha/bugs.h>.
- *
- * Modified 1998, 1999, 2003
- * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co.
- */
-#ifndef _ASM_IA64_BUGS_H
-#define _ASM_IA64_BUGS_H
-
-#include <asm/processor.h>
-
-extern void check_bugs (void);
-
-#endif /* _ASM_IA64_BUGS_H */
diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index 10061ccf0440..bbbdeeed702c 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -552,7 +552,7 @@ ia64_get_irr(unsigned int vector)
{
unsigned int reg = vector / 64;
unsigned int bit = vector % 64;
- u64 irr;
+ unsigned long irr;
switch (reg) {
case 0: irr = ia64_getreg(_IA64_REG_CR_IRR0); break;
diff --git a/arch/ia64/include/asm/timex.h b/arch/ia64/include/asm/timex.h
index 869a3ac6bf23..7ccc077a60be 100644
--- a/arch/ia64/include/asm/timex.h
+++ b/arch/ia64/include/asm/timex.h
@@ -39,6 +39,7 @@ get_cycles (void)
ret = ia64_getreg(_IA64_REG_AR_ITC);
return ret;
}
+#define get_cycles get_cycles
extern void ia64_cpu_local_tick (void);
extern unsigned long long ia64_native_sched_clock (void);
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 1dacbf5e9e09..0c1dac64e77b 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -537,7 +537,8 @@ void __init acpi_numa_fixup(void)
if (srat_num_cpus == 0) {
node_set_online(0);
node_cpuid[0].phys_id = hard_smp_processor_id();
- return;
+ node_distance(0, 0) = LOCAL_DISTANCE;
+ goto out;
}
/*
@@ -580,7 +581,7 @@ void __init acpi_numa_fixup(void)
for (j = 0; j < MAX_NUMNODES; j++)
node_distance(i, j) = i == j ? LOCAL_DISTANCE :
REMOTE_DISTANCE;
- return;
+ goto out;
}
memset(numa_slit, -1, sizeof(numa_slit));
@@ -605,6 +606,8 @@ void __init acpi_numa_fixup(void)
printk("\n");
}
#endif
+out:
+ node_possible_map = node_online_map;
}
#endif /* CONFIG_ACPI_NUMA */
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c
index 9cfd3ac027b7..7fc0806bbdc9 100644
--- a/arch/ia64/kernel/kprobes.c
+++ b/arch/ia64/kernel/kprobes.c
@@ -409,10 +409,83 @@ static void kretprobe_trampoline(void)
{
}
+/*
+ * At this point the target function has been tricked into
+ * returning into our trampoline. Lookup the associated instance
+ * and then:
+ * - call the handler function
+ * - cleanup by marking the instance as unused
+ * - long jump back to the original return address
+ */
int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
- regs->cr_iip = __kretprobe_trampoline_handler(regs,
- dereference_function_descriptor(kretprobe_trampoline), NULL);
+ struct kretprobe_instance *ri = NULL;
+ struct hlist_head *head, empty_rp;
+ struct hlist_node *tmp;
+ unsigned long flags, orig_ret_address = 0;
+ unsigned long trampoline_address =
+ (unsigned long)dereference_function_descriptor(kretprobe_trampoline);
+
+ INIT_HLIST_HEAD(&empty_rp);
+ kretprobe_hash_lock(current, &head, &flags);
+
+ /*
+ * It is possible to have multiple instances associated with a given
+ * task either because an multiple functions in the call path
+ * have a return probe installed on them, and/or more than one return
+ * return probe was registered for a target function.
+ *
+ * We can handle this because:
+ * - instances are always inserted at the head of the list
+ * - when multiple return probes are registered for the same
+ * function, the first instance's ret_addr will point to the
+ * real return address, and all the rest will point to
+ * kretprobe_trampoline
+ */
+ hlist_for_each_entry_safe(ri, tmp, head, hlist) {
+ if (ri->task != current)
+ /* another task is sharing our hash bucket */
+ continue;
+
+ orig_ret_address = (unsigned long)ri->ret_addr;
+ if (orig_ret_address != trampoline_address)
+ /*
+ * This is the real return address. Any other
+ * instances associated with this task are for
+ * other calls deeper on the call stack
+ */
+ break;
+ }
+
+ regs->cr_iip = orig_ret_address;
+
+ hlist_for_each_entry_safe(ri, tmp, head, hlist) {
+ if (ri->task != current)
+ /* another task is sharing our hash bucket */
+ continue;
+
+ if (ri->rp && ri->rp->handler)
+ ri->rp->handler(ri, regs);
+
+ orig_ret_address = (unsigned long)ri->ret_addr;
+ recycle_rp_inst(ri, &empty_rp);
+
+ if (orig_ret_address != trampoline_address)
+ /*
+ * This is the real return address. Any other
+ * instances associated with this task are for
+ * other calls deeper on the call stack
+ */
+ break;
+ }
+ kretprobe_assert(ri, orig_ret_address, trampoline_address);
+
+ kretprobe_hash_unlock(current, &flags);
+
+ hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
+ hlist_del(&ri->hlist);
+ kfree(ri);
+ }
/*
* By returning a non-zero value, we are telling
* kprobe_handler() that we don't want the post_handler
@@ -425,7 +498,6 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
struct pt_regs *regs)
{
ri->ret_addr = (kprobe_opcode_t *)regs->b0;
- ri->fp = NULL;
/* Replace the return addr with trampoline addr */
regs->b0 = (unsigned long)dereference_function_descriptor(kretprobe_trampoline);
diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c
index 06419a95af30..07353029b003 100644
--- a/arch/ia64/kernel/mca_drv.c
+++ b/arch/ia64/kernel/mca_drv.c
@@ -11,6 +11,7 @@
#include <linux/types.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kallsyms.h>
@@ -176,7 +177,7 @@ mca_handler_bh(unsigned long paddr, void *iip, unsigned long ipsr)
spin_unlock(&mca_bh_lock);
/* This process is about to be killed itself */
- do_exit(SIGKILL);
+ make_task_dead(SIGKILL);
}
/**
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 968b5f33e725..1a8e20652e7c 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -444,7 +444,7 @@ static void
do_copy_task_regs (struct task_struct *task, struct unw_frame_info *info, void *arg)
{
unsigned long mask, sp, nat_bits = 0, ar_rnat, urbs_end, cfm;
- unsigned long uninitialized_var(ip); /* GCC be quiet */
+ unsigned long ip;
elf_greg_t *dst = arg;
struct pt_regs *pt;
char nat;
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index aba1f463a8dd..b889db4492c8 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -580,7 +580,7 @@ static int salinfo_cpu_pre_down(unsigned int cpu)
* 'data' contains an integer that corresponds to the feature we're
* testing
*/
-static int proc_salinfo_show(struct seq_file *m, void *v)
+static int __maybe_unused proc_salinfo_show(struct seq_file *m, void *v)
{
unsigned long data = (unsigned long)v;
seq_puts(m, (sal_platform_features & data) ? "1\n" : "0\n");
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 0e6c2d9fb498..41af687bc1dc 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -1050,8 +1050,7 @@ cpu_init (void)
platform_cpu_init();
}
-void __init
-check_bugs (void)
+void __init arch_cpu_finalize_init(void)
{
ia64_patch_mckinley_e9((unsigned long) __start___mckinley_e9_bundles,
(unsigned long) __end___mckinley_e9_bundles);
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index c6f4932073a1..32c2877b3c0a 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -85,7 +85,7 @@ die (const char *str, struct pt_regs *regs, long err)
if (panic_on_oops)
panic("Fatal exception");
- do_exit(SIGSEGV);
+ make_task_dead(SIGSEGV);
return 0;
}
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index e2e40bbd391c..18a2b105f7f3 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -82,7 +82,7 @@ skip:
return __per_cpu_start + __per_cpu_offset[smp_processor_id()];
}
-static inline void
+static inline __init void
alloc_per_cpu_data(void)
{
cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * num_possible_cpus(),
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index db3104c9fac5..33f68be018a2 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -181,7 +181,7 @@ static void *per_cpu_node_setup(void *cpu_data, int node)
void __init setup_per_cpu_areas(void)
{
struct pcpu_alloc_info *ai;
- struct pcpu_group_info *uninitialized_var(gi);
+ struct pcpu_group_info *gi;
unsigned int *cpu_map;
void *base;
unsigned long base_offset;
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index a9d55ad8d67b..0b072af7e20d 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -302,7 +302,7 @@ retry:
regs = NULL;
bust_spinlocks(0);
if (regs)
- do_exit(SIGKILL);
+ make_task_dead(SIGKILL);
return;
out_of_memory:
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index acf10eb9da15..02470929fb39 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -339,7 +339,7 @@ EXPORT_SYMBOL(flush_tlb_range);
void ia64_tlb_init(void)
{
- ia64_ptce_info_t uninitialized_var(ptce_info); /* GCC be quiet */
+ ia64_ptce_info_t ptce_info;
u64 tr_pgbits;
long status;
pal_vm_info_1_u_t vm_info_1;
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-04 16:02:51 +0000