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Thu, 11 Apr 2024 08:35:45 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.35.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:35:44 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 146/437] drm/loongson: convert to read/write iterators Date: Thu, 11 Apr 2024 09:14:46 -0600 Message-ID: <20240411153126.16201-147-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/gpu/drm/loongson/lsdc_crtc.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/loongson/lsdc_crtc.c b/drivers/gpu/drm/loongso= n/lsdc_crtc.c index 827acab580fa..fde7c8d6cc3d 100644 --- a/drivers/gpu/drm/loongson/lsdc_crtc.c +++ b/drivers/gpu/drm/loongson/lsdc_crtc.c @@ -628,20 +628,18 @@ static int lsdc_crtc_man_op_open(struct inode *inode,= struct file *file) return single_open(file, lsdc_crtc_man_op_show, crtc); } =20 -static ssize_t lsdc_crtc_man_op_write(struct file *file, - const char __user *ubuf, - size_t len, - loff_t *offp) +static ssize_t lsdc_crtc_man_op_write(struct kiocb *iocb, struct iov_iter = *from) { - struct seq_file *m =3D file->private_data; + struct seq_file *m =3D iocb->ki_filp->private_data; struct lsdc_crtc *lcrtc =3D m->private; const struct lsdc_crtc_hw_ops *ops =3D lcrtc->hw_ops; + size_t len =3D iov_iter_count(from); char buf[16]; =20 if (len > sizeof(buf) - 1) return -EINVAL; =20 - if (copy_from_user(buf, ubuf, len)) + if (!copy_from_iter_full(buf, len, from)) return -EFAULT; =20 buf[len] =3D '\0'; @@ -663,10 +661,10 @@ static ssize_t lsdc_crtc_man_op_write(struct file *fi= le, static const struct file_operations lsdc_crtc_man_op_fops =3D { .owner =3D THIS_MODULE, .open =3D lsdc_crtc_man_op_open, - .read =3D seq_read, + .read_iter =3D seq_read_iter, .llseek =3D seq_lseek, .release =3D single_release, - .write =3D lsdc_crtc_man_op_write, + .write_iter =3D lsdc_crtc_man_op_write, }; =20 static int lsdc_crtc_late_register(struct drm_crtc *crtc) --=20 2.43.0