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Peter Anvin" , Yury Norov , Rasmus Villemoes , Andrew Morton , "Peter Zijlstra (Intel)" , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Tony Luck , "Xin Li (Intel)" , "Chang S. Bae" , x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/2] x86/topology: use bitmap_weight_from() Date: Mon, 22 Dec 2025 14:11:38 -0500 Message-ID: <20251222191140.380498-3-yury.norov@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251222191140.380498-1-yury.norov@gmail.com> References: <20251222191140.380498-1-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" Switch topo_unit_count() to use bitmap_weight_from(). Signed-off-by: Yury Norov (NVIDIA) --- arch/x86/kernel/cpu/topology.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/x86/kernel/cpu/topology.c b/arch/x86/kernel/cpu/topology.c index f55ea3cdbf88..ba7142f417ad 100644 --- a/arch/x86/kernel/cpu/topology.c +++ b/arch/x86/kernel/cpu/topology.c @@ -204,15 +204,11 @@ static __init bool check_for_real_bsp(u32 apic_id) static unsigned int topo_unit_count(u32 lvlid, enum x86_topology_domains a= t_level, unsigned long *map) { - unsigned int id, end, cnt =3D 0; + unsigned int end; =20 /* Calculate the exclusive end */ end =3D lvlid + (1U << x86_topo_system.dom_shifts[at_level]); - - /* Unfortunately there is no bitmap_weight_range() */ - for (id =3D find_next_bit(map, end, lvlid); id < end; id =3D find_next_bi= t(map, end, ++id)) - cnt++; - return cnt; + return bitmap_weight_from(map, lvlid, end); } =20 static __init void topo_register_apic(u32 apic_id, u32 acpi_id, bool prese= nt) --=20 2.43.0