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Thu, 11 Apr 2024 08:42:26 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.42.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:42:25 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 384/437] stm class: convert to read/write iterators Date: Thu, 11 Apr 2024 09:18:44 -0600 Message-ID: <20240411153126.16201-385-axboe@kernel.dk> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240411153126.16201-1-axboe@kernel.dk> References: <20240411153126.16201-1-axboe@kernel.dk> 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" Signed-off-by: Jens Axboe --- drivers/hwtracing/stm/core.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index 534fbefc7f6a..c66f1864adcd 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -615,11 +615,11 @@ stm_write(struct stm_device *stm, struct stm_output *= output, return err; } =20 -static ssize_t stm_char_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) +static ssize_t stm_char_write(struct kiocb *iocb, struct iov_iter *from) { - struct stm_file *stmf =3D file->private_data; + struct stm_file *stmf =3D iocb->ki_filp->private_data; struct stm_device *stm =3D stmf->stm; + size_t count =3D iov_iter_count(from); char *kbuf; int err; =20 @@ -649,7 +649,7 @@ static ssize_t stm_char_write(struct file *file, const = char __user *buf, if (!kbuf) return -ENOMEM; =20 - err =3D copy_from_user(kbuf, buf, count); + err =3D !copy_from_iter_full(kbuf, count, from); if (err) { kfree(kbuf); return -EFAULT; @@ -835,7 +835,7 @@ stm_char_ioctl(struct file *file, unsigned int cmd, uns= igned long arg) static const struct file_operations stm_fops =3D { .open =3D stm_char_open, .release =3D stm_char_release, - .write =3D stm_char_write, + .write_iter =3D stm_char_write, .mmap =3D stm_char_mmap, .unlocked_ioctl =3D stm_char_ioctl, .compat_ioctl =3D compat_ptr_ioctl, --=20 2.43.0