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Thu, 11 Apr 2024 08:43:15 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.43.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:43:12 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 415/437] media/common: convert to read/write iterators Date: Thu, 11 Apr 2024 09:19:15 -0600 Message-ID: <20240411153126.16201-416-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/media/common/siano/smsdvb-debugfs.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/media/common/siano/smsdvb-debugfs.c b/drivers/media/co= mmon/siano/smsdvb-debugfs.c index 73990e469df9..e81b17b599ec 100644 --- a/drivers/media/common/siano/smsdvb-debugfs.c +++ b/drivers/media/common/siano/smsdvb-debugfs.c @@ -280,15 +280,14 @@ static __poll_t smsdvb_stats_poll(struct file *file, = poll_table *wait) return rc > 0 ? EPOLLIN | EPOLLRDNORM : 0; } =20 -static ssize_t smsdvb_stats_read(struct file *file, char __user *user_buf, - size_t nbytes, loff_t *ppos) +static ssize_t smsdvb_stats_read(struct kiocb *iocb, struct iov_iter *to) { int rc =3D 0, len; - struct smsdvb_debugfs *debug_data =3D file->private_data; + struct smsdvb_debugfs *debug_data =3D iocb->ki_filp->private_data; =20 kref_get(&debug_data->refcount); =20 - if (file->f_flags & O_NONBLOCK) { + if (iocb->ki_filp->f_flags & O_NONBLOCK) { rc =3D smsdvb_stats_wait_read(debug_data); if (!rc) { rc =3D -EWOULDBLOCK; @@ -306,14 +305,14 @@ static ssize_t smsdvb_stats_read(struct file *file, c= har __user *user_buf, goto ret; } =20 - len =3D debug_data->stats_count - *ppos; + len =3D debug_data->stats_count - iocb->ki_pos; if (len >=3D 0) - rc =3D simple_read_from_buffer(user_buf, nbytes, ppos, - debug_data->stats_data, len); + rc =3D simple_copy_to_iter(debug_data->stats_data, &iocb->ki_pos, + len, to); else rc =3D 0; =20 - if (*ppos >=3D debug_data->stats_count) { + if (iocb->ki_pos >=3D debug_data->stats_count) { spin_lock(&debug_data->lock); debug_data->stats_was_read =3D true; spin_unlock(&debug_data->lock); @@ -341,7 +340,7 @@ static int smsdvb_stats_release(struct inode *inode, st= ruct file *file) static const struct file_operations debugfs_stats_ops =3D { .open =3D smsdvb_stats_open, .poll =3D smsdvb_stats_poll, - .read =3D smsdvb_stats_read, + .read_iter =3D smsdvb_stats_read, .release =3D smsdvb_stats_release, .llseek =3D generic_file_llseek, }; --=20 2.43.0