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d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=NVeqfy8PnyvgWAdKHeCgVfqveCjCMDJegzzrq5UVB6U=; b=Ce2DlU6FAGTqOGXJXO5zgOhiwS0MXiYT+A9scw3lkNO8EJLZQppOaD2OIu2bAvsnnm umNDbSXnt324Zu4I8nam1K0Ds85jih15OxNL6oaH0vK+lAiaVZEu4ka+5RZ4oc5JMOHr TC3W2vh1I0rh+5zR7jZnEk7Ne185se6WquB6eHBWVhqD1FrDJUwBBBgWN13sFu/ApMsP /TD0By0sgQ5C1hWONvme6k4JZCm4dhsNdXVuZdrhyEblb0vX2t0kMvJDcCUcuynXL4bN foop0fz5Q8m7MxCgsMOaPSlRIIT0Bt0SV9h9oIn8KAFStV4rTdZivVK7LqcCt1gbplMX daww== X-Gm-Message-State: AOAM5316eqEVmNM5rB0+1w3V9xBTXIV55hJnIvpQWc/OF72f50lzW/Da 8hoLHIGOTQr4JyMjxpPOPcjbxilEYh8VZB7K X-Google-Smtp-Source: ABdhPJy3LMcMO1RRr1wTMaZvcYIHJ2lGN1Rm3XmR+DCe/2CyvjEerR8l4ufrmsSLp/ooBcba4JiSkTlvY93N5sqV X-Received: from andreyknvl3.muc.corp.google.com ([2a00:79e0:15:13:7220:84ff:fe09:7e9d]) (user=andreyknvl job=sendgmr) by 2002:a05:6214:725:: with SMTP id c5mr16904134qvz.27.1612208645795; Mon, 01 Feb 2021 11:44:05 -0800 (PST) Date: Mon, 1 Feb 2021 20:43:35 +0100 In-Reply-To: Message-Id: <05a45017b4cb15344395650e880bbab0fe6ba3e4.1612208222.git.andreyknvl@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.30.0.365.g02bc693789-goog Subject: [PATCH 11/12] kasan: always inline HW_TAGS helper functions From: Andrey Konovalov To: Catalin Marinas , Vincenzo Frascino , Dmitry Vyukov , Alexander Potapenko , Marco Elver Cc: Andrew Morton , Will Deacon , Andrey Ryabinin , Peter Collingbourne , Evgenii Stepanov , Branislav Rankov , Kevin Brodsky , kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Konovalov X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Mark all static functions in common.c and kasan.h that are used for hardware tag-based KASAN as __always_inline to avoid unnecessary function calls. Signed-off-by: Andrey Konovalov --- mm/kasan/common.c | 13 +++++++------ mm/kasan/kasan.h | 6 +++--- 2 files changed, 10 insertions(+), 9 deletions(-) diff --git a/mm/kasan/common.c b/mm/kasan/common.c index 5691cca69397..2004ecd6e43c 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -279,7 +279,8 @@ void __kasan_poison_object_data(struct kmem_cache *cache, void *object) * based on objects indexes, so that objects that are next to each other * get different tags. */ -static u8 assign_tag(struct kmem_cache *cache, const void *object, bool init) +static __always_inline u8 assign_tag(struct kmem_cache *cache, + const void *object, bool init) { if (IS_ENABLED(CONFIG_KASAN_GENERIC)) return 0xff; @@ -321,8 +322,8 @@ void * __must_check __kasan_init_slab_obj(struct kmem_cache *cache, return (void *)object; } -static bool ____kasan_slab_free(struct kmem_cache *cache, void *object, - unsigned long ip, bool quarantine) +static __always_inline bool ____kasan_slab_free(struct kmem_cache *cache, + void *object, unsigned long ip, bool quarantine) { u8 tag; void *tagged_object; @@ -366,7 +367,7 @@ bool __kasan_slab_free(struct kmem_cache *cache, void *object, unsigned long ip) return ____kasan_slab_free(cache, object, ip, true); } -static bool ____kasan_kfree_large(void *ptr, unsigned long ip) +static __always_inline bool ____kasan_kfree_large(void *ptr, unsigned long ip) { if (ptr != page_address(virt_to_head_page(ptr))) { kasan_report_invalid_free(ptr, ip); @@ -461,8 +462,8 @@ void * __must_check __kasan_slab_alloc(struct kmem_cache *cache, return tagged_object; } -static void *____kasan_kmalloc(struct kmem_cache *cache, const void *object, - size_t size, gfp_t flags) +static __always_inline void *____kasan_kmalloc(struct kmem_cache *cache, + const void *object, size_t size, gfp_t flags) { unsigned long redzone_start; unsigned long redzone_end; diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 2f7400a3412f..d5fe72747a53 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -321,7 +321,7 @@ static inline u8 kasan_random_tag(void) { return 0; } #ifdef CONFIG_KASAN_HW_TAGS -static inline void kasan_poison(const void *addr, size_t size, u8 value) +static __always_inline void kasan_poison(const void *addr, size_t size, u8 value) { addr = kasan_reset_tag(addr); @@ -337,7 +337,7 @@ static inline void kasan_poison(const void *addr, size_t size, u8 value) hw_set_mem_tag_range((void *)addr, size, value); } -static inline void kasan_unpoison(const void *addr, size_t size) +static __always_inline void kasan_unpoison(const void *addr, size_t size) { u8 tag = get_tag(addr); @@ -354,7 +354,7 @@ static inline void kasan_unpoison(const void *addr, size_t size) hw_set_mem_tag_range((void *)addr, size, tag); } -static inline bool kasan_byte_accessible(const void *addr) +static __always_inline bool kasan_byte_accessible(const void *addr) { u8 ptr_tag = get_tag(addr); u8 mem_tag = hw_get_mem_tag((void *)addr);