+ kasan-merge-__kasan_report-into-kasan_report.patch added to -mm tree

+ kasan-merge-__kasan_report-into-kasan_report.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: kasan: merge __kasan_report into kasan_report
has been added to the -mm tree.  Its filename is
     kasan-merge-__kasan_report-into-kasan_report.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/kasan-merge-__kasan_report-into-kasan_report.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/kasan-merge-__kasan_report-into-kasan_report.patch

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------------------------------------------------------
From: Andrey Konovalov <andreyknvl@google.com>
Subject: kasan: merge __kasan_report into kasan_report

Merge __kasan_report() into kasan_report().  The code is simple enough to
be readable without the __kasan_report() helper.

Link: https://lkml.kernel.org/r/c8a125497ef82f7042b3795918dffb81a85a878e.1646237226.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/kasan/report.c |   36 +++++++++++++++---------------------
 1 file changed, 15 insertions(+), 21 deletions(-)

--- a/mm/kasan/report.c~kasan-merge-__kasan_report-into-kasan_report
+++ a/mm/kasan/report.c
@@ -435,37 +435,31 @@ static void print_report(struct kasan_ac
 	}
 }
 
-static void __kasan_report(void *addr, size_t size, bool is_write,
-				unsigned long ip)
-{
-	struct kasan_access_info info;
-	unsigned long flags;
-
-	start_report(&flags, true);
-
-	info.access_addr = addr;
-	info.first_bad_addr = kasan_find_first_bad_addr(addr, size);
-	info.access_size = size;
-	info.is_write = is_write;
-	info.ip = ip;
-
-	print_report(&info);
-
-	end_report(&flags, addr);
-}
-
 bool kasan_report(unsigned long addr, size_t size, bool is_write,
 			unsigned long ip)
 {
-	unsigned long ua_flags = user_access_save();
 	bool ret = true;
+	void *ptr = (void *)addr;
+	unsigned long ua_flags = user_access_save();
+	unsigned long irq_flags;
+	struct kasan_access_info info;
 
 	if (unlikely(!report_enabled())) {
 		ret = false;
 		goto out;
 	}
 
-	__kasan_report((void *)addr, size, is_write, ip);
+	start_report(&irq_flags, true);
+
+	info.access_addr = ptr;
+	info.first_bad_addr = kasan_find_first_bad_addr(ptr, size);
+	info.access_size = size;
+	info.is_write = is_write;
+	info.ip = ip;
+
+	print_report(&info);
+
+	end_report(&irq_flags, ptr);
 
 out:
 	user_access_restore(ua_flags);
_

Patches currently in -mm which might be from andreyknvl@google.com are

kasan-page_alloc-deduplicate-should_skip_kasan_poison.patch
kasan-page_alloc-move-tag_clear_highpage-out-of-kernel_init_free_pages.patch
kasan-page_alloc-merge-kasan_free_pages-into-free_pages_prepare.patch
kasan-page_alloc-simplify-kasan_poison_pages-call-site.patch
kasan-page_alloc-init-memory-of-skipped-pages-on-free.patch
kasan-drop-skip_kasan_poison-variable-in-free_pages_prepare.patch
mm-clarify-__gfp_zerotags-comment.patch
kasan-only-apply-__gfp_zerotags-when-memory-is-zeroed.patch
kasan-page_alloc-refactor-init-checks-in-post_alloc_hook.patch
kasan-page_alloc-merge-kasan_alloc_pages-into-post_alloc_hook.patch
kasan-page_alloc-combine-tag_clear_highpage-calls-in-post_alloc_hook.patch
kasan-page_alloc-move-setpageskipkasanpoison-in-post_alloc_hook.patch
kasan-page_alloc-move-kernel_init_free_pages-in-post_alloc_hook.patch
kasan-page_alloc-rework-kasan_unpoison_pages-call-site.patch
kasan-clean-up-metadata-byte-definitions.patch
kasan-define-kasan_vmalloc_invalid-for-sw_tags.patch
kasan-x86-arm64-s390-rename-functions-for-modules-shadow.patch
kasan-vmalloc-drop-outdated-vm_kasan-comment.patch
kasan-reorder-vmalloc-hooks.patch
kasan-add-wrappers-for-vmalloc-hooks.patch
kasan-vmalloc-reset-tags-in-vmalloc-functions.patch
kasan-fork-reset-pointer-tags-of-vmapped-stacks.patch
kasan-arm64-reset-pointer-tags-of-vmapped-stacks.patch
kasan-fork-reset-pointer-tags-of-vmapped-stacks-fix.patch
kasan-vmalloc-add-vmalloc-tagging-for-sw_tags.patch
kasan-vmalloc-arm64-mark-vmalloc-mappings-as-pgprot_tagged.patch
kasan-vmalloc-unpoison-vm_alloc-pages-after-mapping.patch
kasan-mm-only-define-___gfp_skip_kasan_poison-with-hw_tags.patch
kasan-page_alloc-allow-skipping-unpoisoning-for-hw_tags.patch
kasan-page_alloc-allow-skipping-memory-init-for-hw_tags.patch
kasan-vmalloc-add-vmalloc-tagging-for-hw_tags.patch
kasan-vmalloc-only-tag-normal-vmalloc-allocations.patch
kasan-arm64-dont-tag-executable-vmalloc-allocations.patch
kasan-mark-kasan_arg_stacktrace-as-__initdata.patch
kasan-clean-up-feature-flags-for-hw_tags-mode.patch
kasan-add-kasanvmalloc-command-line-flag.patch
kasan-allow-enabling-kasan_vmalloc-and-sw-hw_tags.patch
arm64-select-kasan_vmalloc-for-sw-hw_tags-modes.patch
kasan-documentation-updates.patch
kasan-improve-vmalloc-tests.patch
kasan-improve-vmalloc-tests-fix-2.patch
kasan-improve-vmalloc-tests-fix-3.patch
kasan-test-support-async-again-and-asymm-modes-for-hw_tags.patch
kasan-print-virtual-mapping-info-in-reports.patch
kasan-drop-addr-check-from-describe_object_addr.patch
kasan-more-line-breaks-in-reports.patch
kasan-rearrange-stack-frame-info-in-reports.patch
kasan-improve-stack-frame-info-in-reports.patch
kasan-print-basic-stack-frame-info-for-sw_tags.patch
kasan-simplify-async-check-in-end_report.patch
kasan-simplify-kasan_update_kunit_status-and-call-sites.patch
kasan-check-config_kasan_kunit_test-instead-of-config_kunit.patch
kasan-move-update_kunit_status-to-start_report.patch
kasan-move-disable_trace_on_warning-to-start_report.patch
kasan-split-out-print_report-from-__kasan_report.patch
kasan-simplify-kasan_find_first_bad_addr-call-sites.patch
kasan-restructure-kasan_report.patch
kasan-merge-__kasan_report-into-kasan_report.patch
kasan-call-print_report-from-kasan_report_invalid_free.patch
kasan-move-and-simplify-kasan_report_async.patch
kasan-rename-kasan_access_info-to-kasan_report_info.patch
kasan-add-comment-about-uaccess-regions-to-kasan_report.patch
kasan-respect-kasan_bit_reported-in-all-reporting-routines.patch
kasan-reorder-reporting-functions.patch
kasan-move-and-hide-kasan_save_enable-restore_multi_shot.patch
kasan-disable-lockdep-when-printing-reports.patch