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author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2019-01-28 22:55:39 -0800 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-01-29 09:27:04 +0100 |
commit | 5c9408572406c8718a35931ecf74a5cf38632914 (patch) | |
tree | cfcbe96996cb41a46334cf76f6d51d48a694397f /drivers/hw_random | |
parent | 0c2431b5a15ca03e20ce3c698b8b708181db5fd9 (diff) | |
download | barebox-5c9408572406c8718a35931ecf74a5cf38632914.tar.gz barebox-5c9408572406c8718a35931ecf74a5cf38632914.tar.xz |
devfs: Drop dev_lseek_default()
Only the following cdevs do not declare an .lseek() operation:
- Console devices in common/console.c
- Firmware framework in common/firmware.c
- JTAG driver in drivers/misc/jtag.c
- UBI in drivers/mtd/ubi/barebox.c
Of those four, first two are marked DEVFS_IS_CHARACTER_DEV and
implement only .write() operation and the last two don't implement
anything but .ioctl(). While there's probably no meaningful way to use
lseek() against any of those devices, there doesn't seem to be any
harm in allowing it either.
Change devfs_lseek() to ignore absense of .lseek() callback and drop
dev_lseek_default() and all references to it in the codebase.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/hw_random')
-rw-r--r-- | drivers/hw_random/core.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/hw_random/core.c b/drivers/hw_random/core.c index 1c68a379f7..ee3d5a52dd 100644 --- a/drivers/hw_random/core.c +++ b/drivers/hw_random/core.c @@ -63,7 +63,6 @@ static ssize_t rng_dev_read(struct cdev *cdev, void *buf, size_t size, static struct cdev_operations rng_chrdev_ops = { .read = rng_dev_read, - .lseek = dev_lseek_default, }; static int hwrng_register_cdev(struct hwrng *rng) |