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[2003:e4:1f29:1e00:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48febe6b60csm193175225e9.6.2026.05.20.05.03.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2026 05:03:20 -0700 (PDT) Date: Wed, 20 May 2026 14:03:17 +0200 From: Thierry Reding To: Steven Rostedt Cc: Artur Kowalski , Masami Hiramatsu , Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, Thierry Reding , Mikko Perttunen , David Airlie , Simona Vetter Subject: Re: [PATCH] gpu: host1x: trace: fix string fields in host1x traces Message-ID: References: <20260519-host1x-tracing-v1-1-55afb8cbd186@gmail.com> <20260519141059.77435501@fedora> Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="d6arr666wdzokuxu" Content-Disposition: inline In-Reply-To: <20260519141059.77435501@fedora> --d6arr666wdzokuxu Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH] gpu: host1x: trace: fix string fields in host1x traces MIME-Version: 1.0 On Tue, May 19, 2026 at 02:10:59PM -0400, Steven Rostedt wrote: > On Tue, 19 May 2026 12:16:43 +0200 > Artur Kowalski wrote: >=20 > > Use __assign_str and __get_str as required by tracing subsystem. Fixes > > string fields being rejected by the verifier and unreadable from > > userspace. >=20 > Does anyone use these tracepoints? The fact that they have been broken > for 5 years and nobody noticed makes me think they are useless. >=20 > I rather remove them than fix them, but if someone thinks that these > are still useful then by all means apply this patch. >=20 > Acked-by: Steven Rostedt I know that Mikko used them a lot early on, but this driver is pretty mature now, so we rarely need this low level of tracing. I'll defer to Mikko on whether we still need these. 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