kernel/linux.git/drivers/platform/goldfish, branch v4.19.112

platform: goldfish: Retire pdev_bus

2018-08-02T08:24:51+00:00

Not used by goldfish. Signed-off-by: Roman Kiryanov Signed-off-by: Greg Kroah-Hartman

headers: separate linux/mod_devicetable.h from linux/platform_device.h

2018-07-07T15:52:26+00:00

At over 4000 #includes, is the 9th most #included header file in the Linux kernel. It does not need , so drop that header and explicitly add to source files that need it. 4146 #include After this patch, there are 225 files that use , for a reduction of around 3900 times that does not have to be read & parsed. 225 #include This patch was build-tested on 20 different arch-es. It also makes these drivers SubmitChecklist#1 compliant. Signed-off-by: Randy Dunlap Reported-by: kbuild test robot # drivers/media/platform/vimc/ Reported-by: kbuild test robot # drivers/pinctrl/pinctrl-u300.c Signed-off-by: Greg Kroah-Hartman

goldfish_pipe: make tasklet goldfish_interrupt_tasklet static

2018-07-03T11:01:57+00:00

Tasklet goldfish_interrupt_tasklet is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: symbol 'goldfish_interrupt_tasklet' was not declared. Should it be static? Signed-off-by: Colin Ian King Signed-off-by: Greg Kroah-Hartman

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11T22:34:03+00:00

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

2017-11-28T16:06:58+00:00

Signed-off-by: Al Viro

Merge 4.12-rc5 into char-misc-next

2017-06-12T06:18:10+00:00

We want the char/misc driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman

goldfish_pipe: use GFP_ATOMIC under spin lock

2017-05-25T16:26:11+00:00

The function get_free_pipe_id_locked() is called from goldfish_pipe_open() with a lock is held, so we should use GFP_ATOMIC instead of GFP_KERNEL. Signed-off-by: Wei Yongjun Signed-off-by: Greg Kroah-Hartman

goldfish_pipe: make pipe_dev static

2017-05-25T16:24:03+00:00

Make this static as it's only referenced in this source and it does not need global scope. Cleans up a sparse warning: drivers/platform/goldfish/goldfish_pipe.c: warning: symbol 'pipe_dev' was not declared. Should it be static? Signed-off-by: Colin Ian King Signed-off-by: Greg Kroah-Hartman

goldfish_pipe: fix build warning about using too much stack.

2017-04-26T09:43:39+00:00

The new goldfish_pipe code used too much stack space in the transfer_max_buffers() call. As the function is serialized with a lock, let's make the buffer static to not use the stack for the large buffer. Reported-by: kbuild test robot Cc: Yurii Zubrytskyi Cc: Jin Qian Signed-off-by: Greg Kroah-Hartman

goldfish_pipe: An implementation of more parallel pipe

2017-04-26T09:43:03+00:00

This is a driver code for a redesigned android pipe. Currently it works for x86 and x64 emulators with the following performance results: ADB push to /dev/null, Ubuntu, 400 MB file, times are for (1 / 10 / 100) parallel adb commands x86 adb push: (4.4s / 11.5s / 2m10s) -> (2.8s / 6s / 51s) x64 adb push: (7s / 15s / (too long, 6m+) -> (2.7s / 6.2s / 52s) ADB pull and push to /data/ have the same %% of speedup More importantly, I don't see any signs of slowdowns when run in parallel with Antutu benchmark, so it is definitely making much better job at multithreading. Signed-off-by: Yurii Zubrytskyi Signed-off-by: Jin Qian Signed-off-by: Greg Kroah-Hartman