Merge tag 'riscv-mw1-6.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/alexghiti/linux into for-next

riscv patches for 6.15-rc1

* A bunch of fixes:
  - We were missing a secondary mmu notifier call when flushing the tlb which is required for IOMMU
  - Fix ftrace panics by saving the registers as expected by ftrace
  - Fix a couple of stimecmp usage related to cpu hotplug
  - Fix a bunch of issues in the misaligned probing handling

* Perf improvements:
  - Introduce support for runtime constant improving perf of d_hash()
  - Add support for huge pfnmaps to improve tlb utilization
  - Use Zawrs to improve smp_cond_load8/16() used by the queued spinlocks

* Hwprobe additions:
  - Add support for Zicntr and Zihpm
  - Add support for Zaamo and Zalrsc
  - Add support for bfloat16 extensiosn
  - Add support for Zicbom (only enabling clean and flush, not inval for security reasons)

* Misc:
  - Add a kernel parameter to bypass the misaligned speed probing since we can't rely on Zicclsm

* tag 'riscv-mw1-6.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/alexghiti/linux: (1585 commits)
  riscv: Add runtime constant support
  riscv: Move nop definition to insn-def.h
  Documentation/kernel-parameters: Add riscv unaligned speed parameters
  riscv: Add parameter for skipping access speed tests
  riscv: Fix set up of vector cpu hotplug callback
  riscv: Fix set up of cpu hotplug callbacks
  riscv: Change check_unaligned_access_speed_all_cpus to void
  riscv: Fix check_unaligned_access_all_cpus
  riscv: Fix riscv_online_cpu_vec
  riscv: Annotate unaligned access init functions
  KVM: riscv: selftests: Add Zaamo/Zalrsc extensions to get-reg-list test
  RISC-V: KVM: Allow Zaamo/Zalrsc extensions for Guest/VM
  riscv: hwprobe: export Zaamo and Zalrsc extensions
  riscv: add parsing for Zaamo and Zalrsc extensions
  dt-bindings: riscv: add Zaamo and Zalrsc ISA extension description
  riscv: fgraph: Fix stack layout to match __arch_ftrace_regs argument of ftrace_return_to_handler
  riscv: fgraph: Select HAVE_FUNCTION_GRAPH_TRACER depends on HAVE_DYNAMIC_FTRACE_WITH_ARGS
  riscv: Fix missing __free_pages() in check_vector_unaligned_access()
  riscv: Fix the __riscv_copy_vec_words_unaligned implementation
  riscv: mm: Don't use %pK through printk
  ...

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
index af97fbb3c257..f84e0337cc02 100644
--- a/arch/powerpc/lib/code-patching.c
+++ b/arch/powerpc/lib/code-patching.c
@@ -108,7 +108,7 @@ static int text_area_cpu_up(unsigned int cpu)
 	unsigned long addr;
 	int err;
 
-	area = get_vm_area(PAGE_SIZE, VM_ALLOC);
+	area = get_vm_area(PAGE_SIZE, 0);
 	if (!area) {
 		WARN_ONCE(1, "Failed to create text area for cpu %d\n",
 			cpu);
@@ -493,7 +493,9 @@ static int __do_patch_instructions_mm(u32 *addr, u32 *code, size_t len, bool rep
 
 	orig_mm = start_using_temp_mm(patching_mm);
 
+	kasan_disable_current();
 	err = __patch_instructions(patch_addr, code, len, repeat_instr);
+	kasan_enable_current();
 
 	/* context synchronisation performed by __patch_instructions */
 	stop_using_temp_mm(patching_mm, orig_mm);