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[188.141.5.72]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43d1e4f52easm34255338f8f.36.2026.04.05.08.47.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Apr 2026 08:47:12 -0700 (PDT) From: David Carlier To: Jani Nikula , Rodrigo Vivi , =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= Cc: Joonas Lahtinen , Tvrtko Ursulin , David Airlie , Simona Vetter , Matthew Brost , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-kernel@vger.kernel.org, David Carlier Subject: [PATCH v3] drm: use get_random_u64() where appropriate Date: Sun, 5 Apr 2026 16:47:10 +0100 Message-ID: <20260405154710.4638-1-devnexen@gmail.com> X-Mailer: git-send-email 2.53.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Use the typed random integer helpers instead of get_random_bytes() when filling a single integer variable. The helpers return the value directly, require no pointer or size argument, and better express intent. Signed-off-by: David Carlier --- drivers/gpu/drm/i915/i915_hdcp_gsc.c | 2 +- drivers/gpu/drm/xe/xe_gsc_submit.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_hdcp_gsc.c b/drivers/gpu/drm/i915/i915_hdcp_gsc.c index 168b9ccbef3e..a0510f5ab25c 100644 --- a/drivers/gpu/drm/i915/i915_hdcp_gsc.c +++ b/drivers/gpu/drm/i915/i915_hdcp_gsc.c @@ -196,7 +196,7 @@ static ssize_t intel_hdcp_gsc_msg_send(struct intel_hdcp_gsc_context *gsc_contex memset(header_in, 0, msg_size_in); memset(header_out, 0, msg_size_out); - get_random_bytes(&host_session_id, sizeof(u64)); + host_session_id = get_random_u64(); intel_gsc_uc_heci_cmd_emit_mtl_header(header_in, HECI_MEADDRESS_HDCP, msg_size_in, host_session_id); memcpy(gsc_context->hdcp_cmd_in + sizeof(*header_in), msg_in, msg_in_len); diff --git a/drivers/gpu/drm/xe/xe_gsc_submit.c b/drivers/gpu/drm/xe/xe_gsc_submit.c index 08082b596501..195f99e6c3a8 100644 --- a/drivers/gpu/drm/xe/xe_gsc_submit.c +++ b/drivers/gpu/drm/xe/xe_gsc_submit.c @@ -49,7 +49,7 @@ u64 xe_gsc_create_host_session_id(void) { u64 host_session_id; - get_random_bytes(&host_session_id, sizeof(u64)); + host_session_id = get_random_u64(); host_session_id &= ~HOST_SESSION_CLIENT_MASK; return host_session_id; } -- 2.53.0