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Sat, 07 Feb 2026 20:04:19 -0800 (PST) Received: from dianders.sjc.corp.google.com ([2a00:79e0:2e7c:8:6d43:22d7:40eb:81e6]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-127041e61b9sm7085064c88.8.2026.02.07.20.04.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Feb 2026 20:04:18 -0800 (PST) From: Douglas Anderson To: jassisinghbrar@gmail.com Cc: Douglas Anderson , jonathanh@nvidia.com, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, robh@kernel.org, thierry.reding@gmail.com Subject: [PATCH v2 05/15] firmware: tegra: bpmp: Use mbox_ring_doorbell() instead of NULL message Date: Sat, 7 Feb 2026 20:01:27 -0800 Message-ID: <20260207200128.v2.5.If1255977439f4cdbb3193f73f90a784566254f15@changeid> X-Mailer: git-send-email 2.53.0.rc2.204.g2597b5adb4-goog In-Reply-To: <20260208040240.1971442-1-dianders@chromium.org> References: <20260208040240.1971442-1-dianders@chromium.org> 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" As per the patch ("mailbox: Deprecate NULL mbox messages; Introduce mbox_ring_doorbell()"), we want to switch all users of NULL mailbox messages to use mbox_ring_doorbell(). This client only ever sent NULL messages, so the transition is straightforward. We can remove the call to mbox_client_txdone(). The call didn't do anything for NULL messages and it's now officially documented not to be called for doorbells. Signed-off-by: Douglas Anderson --- (no changes since v1) drivers/firmware/tegra/bpmp-tegra186.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/firmware/tegra/bpmp-tegra186.c b/drivers/firmware/tegr= a/bpmp-tegra186.c index 64863db7a715..c45ea66aabfb 100644 --- a/drivers/firmware/tegra/bpmp-tegra186.c +++ b/drivers/firmware/tegra/bpmp-tegra186.c @@ -84,12 +84,10 @@ static int tegra186_bpmp_ring_doorbell(struct tegra_bpm= p *bpmp) struct tegra186_bpmp *priv =3D bpmp->priv; int err; =20 - err =3D mbox_send_message(priv->mbox.channel, NULL); + err =3D mbox_ring_doorbell(priv->mbox.channel); if (err < 0) return err; =20 - mbox_client_txdone(priv->mbox.channel, 0); - return 0; } =20 --=20 2.53.0.rc2.204.g2597b5adb4-goog