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Mon, 15 Dec 2025 15:54:40 -0800 (PST) Received: from localhost ([2601:346:0:79bd:6b0:1f10:bc87:9bd7]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64477dc673asm6997136d50.25.2025.12.15.15.54.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Dec 2025 15:54:40 -0800 (PST) From: "Yury Norov (NVIDIA)" To: Lucas De Marchi , =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , Rodrigo Vivi , David Airlie , Simona Vetter , Harish Chegondi , intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: "Yury Norov (NVIDIA)" Subject: [PATCH] drm/xe/eustall: use bitmap_empty() in xe_eu_stall_stream_read_locked() Date: Mon, 15 Dec 2025 18:54:38 -0500 Message-ID: <20251215235439.330124-1-yury.norov@gmail.com> X-Mailer: git-send-email 2.43.0 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" bitmap_empty() is more verbose and efficient, as it stops traversing data_drop mask as soon as the 1st set bit found. Signed-off-by: Yury Norov (NVIDIA) --- drivers/gpu/drm/xe/xe_eu_stall.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_eu_stall.c b/drivers/gpu/drm/xe/xe_eu_st= all.c index 97dfb7945b7a..b896b7ff5900 100644 --- a/drivers/gpu/drm/xe/xe_eu_stall.c +++ b/drivers/gpu/drm/xe/xe_eu_stall.c @@ -544,7 +544,7 @@ static ssize_t xe_eu_stall_stream_read_locked(struct xe= _eu_stall_data_stream *st int ret =3D 0; =20 mutex_lock(&stream->xecore_buf_lock); - if (bitmap_weight(stream->data_drop.mask, XE_MAX_DSS_FUSE_BITS)) { + if (!bitmap_empty(stream->data_drop.mask, XE_MAX_DSS_FUSE_BITS)) { if (!stream->data_drop.reported_to_user) { stream->data_drop.reported_to_user =3D true; xe_gt_dbg(gt, "EU stall data dropped in XeCores: %*pb\n", --=20 2.43.0