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Thu, 11 Apr 2024 08:41:54 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.41.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:41:52 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 366/437] hwmon: q54sj108a2: convert to read/write iterators Date: Thu, 11 Apr 2024 09:18:26 -0600 Message-ID: <20240411153126.16201-367-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/hwmon/pmbus/q54sj108a2.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/hwmon/pmbus/q54sj108a2.c b/drivers/hwmon/pmbus/q54sj10= 8a2.c index a235c1cdf4fe..12634ede2c50 100644 --- a/drivers/hwmon/pmbus/q54sj108a2.c +++ b/drivers/hwmon/pmbus/q54sj108a2.c @@ -70,11 +70,10 @@ static struct pmbus_driver_info q54sj108a2_info[] =3D { }, }; =20 -static ssize_t q54sj108a2_debugfs_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) +static ssize_t q54sj108a2_debugfs_read(struct kiocb *iocb, struct iov_iter= *to) { int rc; - int *idxp =3D file->private_data; + int *idxp =3D iocb->ki_filp->private_data; int idx =3D *idxp; struct q54sj108a2_data *psu =3D to_psu(idxp, idx); char data[I2C_SMBUS_BLOCK_MAX + 2] =3D { 0 }; @@ -169,18 +168,18 @@ static ssize_t q54sj108a2_debugfs_read(struct file *f= ile, char __user *buf, data[rc] =3D '\n'; rc +=3D 2; =20 - return simple_read_from_buffer(buf, count, ppos, data, rc); + return simple_copy_to_iter(data, &iocb->ki_pos, rc, to); } =20 -static ssize_t q54sj108a2_debugfs_write(struct file *file, const char __us= er *buf, - size_t count, loff_t *ppos) +static ssize_t q54sj108a2_debugfs_write(struct kiocb *iocb, struct iov_ite= r *from) { u8 flash_key[4]; u8 dst_data; ssize_t rc; - int *idxp =3D file->private_data; + int *idxp =3D iocb->ki_filp->private_data; int idx =3D *idxp; struct q54sj108a2_data *psu =3D to_psu(idxp, idx); + size_t count =3D iov_iter_count(from); =20 rc =3D i2c_smbus_write_byte_data(psu->client, PMBUS_WRITE_PROTECT, 0); if (rc) @@ -188,7 +187,7 @@ static ssize_t q54sj108a2_debugfs_write(struct file *fi= le, const char __user *bu =20 switch (idx) { case Q54SJ108A2_DEBUGFS_OPERATION: - rc =3D kstrtou8_from_user(buf, count, 0, &dst_data); + rc =3D kstrtou8_from_iter(from, count, 0, &dst_data); if (rc < 0) return rc; =20 @@ -218,7 +217,7 @@ static ssize_t q54sj108a2_debugfs_write(struct file *fi= le, const char __user *bu =20 break; case Q54SJ108A2_DEBUGFS_VOOV_RESPONSE: - rc =3D kstrtou8_from_user(buf, count, 0, &dst_data); + rc =3D kstrtou8_from_iter(from, count, 0, &dst_data); if (rc < 0) return rc; =20 @@ -228,7 +227,7 @@ static ssize_t q54sj108a2_debugfs_write(struct file *fi= le, const char __user *bu =20 break; case Q54SJ108A2_DEBUGFS_IOOC_RESPONSE: - rc =3D kstrtou8_from_user(buf, count, 0, &dst_data); + rc =3D kstrtou8_from_iter(from, count, 0, &dst_data); if (rc < 0) return rc; =20 @@ -244,7 +243,7 @@ static ssize_t q54sj108a2_debugfs_write(struct file *fi= le, const char __user *bu =20 break; case Q54SJ108A2_DEBUGFS_BLACKBOX_SET_OFFSET: - rc =3D kstrtou8_from_user(buf, count, 0, &dst_data); + rc =3D kstrtou8_from_iter(from, count, 0, &dst_data); if (rc < 0) return rc; =20 @@ -262,8 +261,8 @@ static ssize_t q54sj108a2_debugfs_write(struct file *fi= le, const char __user *bu =20 static const struct file_operations q54sj108a2_fops =3D { .llseek =3D noop_llseek, - .read =3D q54sj108a2_debugfs_read, - .write =3D q54sj108a2_debugfs_write, + .read_iter =3D q54sj108a2_debugfs_read, + .write_iter =3D q54sj108a2_debugfs_write, .open =3D simple_open, }; =20 --=20 2.43.0