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Thu, 11 Apr 2024 08:36:28 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.36.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:36:27 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 171/437] usb: musb: convert to read/write iterators Date: Thu, 11 Apr 2024 09:15:11 -0600 Message-ID: <20240411153126.16201-172-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/usb/musb/musb_debugfs.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugf= s.c index 2d623284edf6..7123057d12f7 100644 --- a/drivers/usb/musb/musb_debugfs.c +++ b/drivers/usb/musb/musb_debugfs.c @@ -160,17 +160,17 @@ static int musb_test_mode_open(struct inode *inode, s= truct file *file) return single_open(file, musb_test_mode_show, inode->i_private); } =20 -static ssize_t musb_test_mode_write(struct file *file, - const char __user *ubuf, size_t count, loff_t *ppos) +static ssize_t musb_test_mode_write(struct kiocb *iocb, struct iov_iter *f= rom) { - struct seq_file *s =3D file->private_data; + struct seq_file *s =3D iocb->ki_filp->private_data; + size_t count =3D iov_iter_count(from); struct musb *musb =3D s->private; u8 test; char buf[24]; =20 memset(buf, 0x00, sizeof(buf)); =20 - if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + if (!copy_from_iter_full(buf, min_t(size_t, sizeof(buf) - 1, count), from= )) return -EFAULT; =20 pm_runtime_get_sync(musb->controller); @@ -223,8 +223,8 @@ static ssize_t musb_test_mode_write(struct file *file, =20 static const struct file_operations musb_test_mode_fops =3D { .open =3D musb_test_mode_open, - .write =3D musb_test_mode_write, - .read =3D seq_read, + .write_iter =3D musb_test_mode_write, + .read_iter =3D seq_read_iter, .llseek =3D seq_lseek, .release =3D single_release, }; @@ -260,17 +260,17 @@ static int musb_softconnect_open(struct inode *inode,= struct file *file) return single_open(file, musb_softconnect_show, inode->i_private); } =20 -static ssize_t musb_softconnect_write(struct file *file, - const char __user *ubuf, size_t count, loff_t *ppos) +static ssize_t musb_softconnect_write(struct kiocb *iocb, struct iov_iter = *from) { - struct seq_file *s =3D file->private_data; + struct seq_file *s =3D iocb->ki_filp->private_data; + size_t count =3D iov_iter_count(from); struct musb *musb =3D s->private; char buf[2]; u8 reg; =20 memset(buf, 0x00, sizeof(buf)); =20 - if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + if (!copy_from_iter_full(&buf, min_t(size_t, sizeof(buf) - 1, count), fro= m)) return -EFAULT; =20 pm_runtime_get_sync(musb->controller); @@ -315,8 +315,8 @@ static ssize_t musb_softconnect_write(struct file *file, */ static const struct file_operations musb_softconnect_fops =3D { .open =3D musb_softconnect_open, - .write =3D musb_softconnect_write, - .read =3D seq_read, + .write_iter =3D musb_softconnect_write, + .read_iter =3D seq_read_iter, .llseek =3D seq_lseek, .release =3D single_release, }; --=20 2.43.0