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Sat, 25 Oct 2025 09:33:28 -0700 (PDT) From: "Yury Norov (NVIDIA)" To: Linus Walleij , Lee Jones , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Marco Elver , Dmitry Vyukov , kasan-dev@googlegroups.com Cc: "Yury Norov (NVIDIA)" Subject: [PATCH 16/21] kcsan: don't use GENMASK() Date: Sat, 25 Oct 2025 12:32:58 -0400 Message-ID: <20251025163305.306787-9-yury.norov@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251025162858.305236-1-yury.norov@gmail.com> References: <20251025162858.305236-1-yury.norov@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" GENMASK(high, low) notation is confusing. Use BITS(low, high) and FIRST_BITS() where appropriate. Signed-off-by: Yury Norov (NVIDIA) --- kernel/kcsan/encoding.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/kcsan/encoding.h b/kernel/kcsan/encoding.h index 170a2bb22f53..3a4cb7b354e3 100644 --- a/kernel/kcsan/encoding.h +++ b/kernel/kcsan/encoding.h @@ -44,8 +44,8 @@ =20 /* Bitmasks for the encoded watchpoint access information. */ #define WATCHPOINT_WRITE_MASK BIT(BITS_PER_LONG-1) -#define WATCHPOINT_SIZE_MASK GENMASK(BITS_PER_LONG-2, WATCHPOINT_ADDR_BITS) -#define WATCHPOINT_ADDR_MASK GENMASK(WATCHPOINT_ADDR_BITS-1, 0) +#define WATCHPOINT_ADDR_MASK FIRST_BITS(WATCHPOINT_ADDR_BITS) +#define WATCHPOINT_SIZE_MASK BITS(WATCHPOINT_ADDR_BITS, BITS_PER_LONG-2) static_assert(WATCHPOINT_ADDR_MASK =3D=3D (1UL << WATCHPOINT_ADDR_BITS) - = 1); static_assert((WATCHPOINT_WRITE_MASK ^ WATCHPOINT_SIZE_MASK ^ WATCHPOINT_A= DDR_MASK) =3D=3D ~0UL); =20 --=20 2.43.0