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From: Alexander Potapenko <glider@google.com>
To: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Linux-Arch <linux-arch@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	linuxppc-dev@lists.ozlabs.org,
	Steven Rostedt <rostedt@goodmis.org>,
	Ingo Molnar <mingo@redhat.com>,
	David Miller <davem@davemloft.net>,
	Alexei Starovoitov <ast@kernel.org>,
	Andrey Ryabinin <ryabinin.a.a@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	bpf@vger.kernel.org, linux-alpha@vger.kernel.org,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Andrey Konovalov <andreyknvl@gmail.com>,
	Dmitry Vyukov <dvyukov@google.com>
Subject: Re: [PATCH v4 07/11] mm: kasan: Use is_kernel() helper
Date: Thu, 30 Sep 2021 17:45:35 +0200	[thread overview]
Message-ID: <CAG_fn=XD+nVgVRgj7KFsPWSuia+gZzpA3KAdqucjKodOvxSF6w@mail.gmail.com> (raw)
In-Reply-To: <20210930071143.63410-8-wangkefeng.wang@huawei.com>

On Thu, Sep 30, 2021 at 9:09 AM Kefeng Wang <wangkefeng.wang@huawei.com> wrote:
>
> Directly use is_kernel() helper in kernel_or_module_addr().
>
> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
> Cc: Alexander Potapenko <glider@google.com>
> Cc: Andrey Konovalov <andreyknvl@gmail.com>
> Cc: Dmitry Vyukov <dvyukov@google.com>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Alexander Potapenko <glider@google.com>

> ---
>  mm/kasan/report.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/kasan/report.c b/mm/kasan/report.c
> index 3239fd8f8747..1c955e1c98d5 100644
> --- a/mm/kasan/report.c
> +++ b/mm/kasan/report.c
> @@ -226,7 +226,7 @@ static void describe_object(struct kmem_cache *cache, void *object,
>
>  static inline bool kernel_or_module_addr(const void *addr)
>  {
> -       if (addr >= (void *)_stext && addr < (void *)_end)
> +       if (is_kernel((unsigned long)addr))
>                 return true;
>         if (is_module_address((unsigned long)addr))
>                 return true;
> --
> 2.26.2
>


-- 
Alexander Potapenko
Software Engineer

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  reply	other threads:[~2021-09-30 15:46 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-30  7:11 [PATCH v4 00/11] sections: Unify kernel sections range check and use Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 01/11] kallsyms: Remove arch specific text and data check Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 02/11] kallsyms: Fix address-checks for kernel related range Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 03/11] sections: Move and rename core_kernel_data() to is_kernel_core_data() Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 04/11] sections: Move is_kernel_inittext() into sections.h Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 05/11] x86: mm: Rename __is_kernel_text() to is_x86_32_kernel_text() Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 06/11] sections: Provide internal __is_kernel() and __is_kernel_text() helper Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 07/11] mm: kasan: Use is_kernel() helper Kefeng Wang
2021-09-30 15:45   ` Alexander Potapenko [this message]
2021-10-03 17:19   ` Andrey Konovalov
2021-09-30  7:11 ` [PATCH v4 08/11] extable: Use is_kernel_text() helper Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 09/11] powerpc/mm: Use core_kernel_text() helper Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 10/11] microblaze: Use is_kernel_text() helper Kefeng Wang
2021-09-30 10:13   ` Michal Simek
2021-09-30  7:11 ` [PATCH v4 11/11] alpha: " Kefeng Wang

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