linux/drivers/pps/pps.c, branch v4.20

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11T22:34:03Z

This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^$[^\"]*$$\$/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro Signed-off-by: Linus Torvalds

the rest of drivers/*: annotate ->poll() instances

2017-11-28T16:06:58Z

Signed-off-by: Al Viro

pps: fix padding issue with PPS_FETCH for ioctl_compat

2017-03-17T06:10:49Z

Issue is that x86 32-bit aligns to 4-bytes instead of 8-bytes so this patchset works around the issue and corrects the data returned in pps_fdata_compat. Acked-by: Rodolfo Giometti Signed-off-by: Matt Ranostay Signed-off-by: Greg Kroah-Hartman

pps: add ioctl_compat function to correct ioctl definitions

2017-03-17T06:10:49Z

ioctl definitions use the pointer size of the architecture which is fine when userspace and kernel are the same bitsize. This patchset workarounds an issue with mixed bitsize kernel + userspace by rewriting the cmd to the kernelspace architecture pointer size. Acked-by: Rodolfo Giometti Signed-off-by: Matt Ranostay Signed-off-by: Greg Kroah-Hartman

PPS: convert class code to use dev_groups

2013-08-20T04:22:34Z

The dev_attrs field of struct class is going away soon, dev_groups should be used instead. This converts the pps class code to use the correct field. Cc: Rodolfo Giometti Signed-off-by: Greg Kroah-Hartman

pps: convert to idr_alloc()

2013-02-28T03:10:18Z

Convert to the much saner new idr interface. Signed-off-by: Tejun Heo Cc: Rodolfo Giometti Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

pps: Fix a use-after free bug when unregistering a source.

2013-02-13T17:40:35Z

Remove the cdev from the system (with cdev_del) *before* deallocating it (in pps_device_destruct, called via kobject_put from device_destroy). Also prevent deallocating a device with open file handles. A better long-term fix is probably to remove the cdev from the pps_device entirely, and instead have all devices reference one global cdev. Then the deallocation ordering becomes simpler. But that's more complex and invasive change, so we leave that for later. Signed-off-by: George Spelvin Cc: stable Acked-by: Rodolfo Giometti Signed-off-by: Greg Kroah-Hartman

pps: Add pps_lookup_dev() function

2013-02-13T17:40:35Z

The PPS serial line discipline wants to attach a PPS device to a tty without changing the tty code to add a struct pps_device * pointer. Since the number of PPS devices in a typical system is generally very low (n=1 is by far the most common), it's practical to search the entire list of allocated pps devices. (We capture the timestamp before the lookup, so the timing isn't affected.) It is a bit ugly that this function, which is part of the in-kernel PPS API, has to be in pps.c as opposed to kapi,c, but that's not something that affects users. Signed-off-by: George Spelvin Acked-by: Rodolfo Giometti Cc: stable Signed-off-by: Greg Kroah-Hartman

idr: rename MAX_LEVEL to MAX_IDR_LEVEL

2012-10-05T18:04:56Z

To avoid name conflicts: drivers/video/riva/fbdev.c:281:9: sparse: preprocessor token MAX_LEVEL redefined While at it, also make the other names more consistent and add parentheses. [akpm@linux-foundation.org: repair fallout] [sfr@canb.auug.org.au: IB/mlx4: fix for MAX_ID_MASK to MAX_IDR_MASK name change] Signed-off-by: Fengguang Wu Cc: Bernd Petrovitsch Cc: walter harms Cc: Glauber Costa Signed-off-by: Stephen Rothwell Cc: Roland Dreier Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

pps: return PTR_ERR on error in device_create

2012-07-31T00:25:21Z

We should return PTR_ERR if the call to the device_create function fails. Without this patch we instead return the value from a successful call to cdev_add if the call to device_create fails. Signed-off-by: Emil Goode Acked-by: Devendra Naga Cc: Alexander Gordeev Cc: Rodolfo Giometti Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds