kernel/arch/um/include/asm/delay.h, branch linux-rolling-stable

um: fix ndelay/udelay defines

2022-01-27T10:03:44Z

[ Upstream commit 5f8539e2ff962e25b57742ca7106456403abbc94 ] Many places in the kernel use 'udelay' as an identifier, and are broken with the current "#define udelay um_udelay". Fix this by adding an argument to the macro, and do the same to 'ndelay' as well, just in case. Fixes: 0bc8fb4dda2b ("um: Implement ndelay/udelay in time-travel mode") Reported-by: kernel test robot Signed-off-by: Johannes Berg Signed-off-by: Richard Weinberger Signed-off-by: Sasha Levin

um: Implement ndelay/udelay in time-travel mode

2020-03-29T21:29:52Z

In external or inf-cpu time-travel mode, ndelay/udelay currently just waste CPU time since the simulation time doesn't advance. Implement them properly in this case. Note that the "if (time_travel_mode == ...)" parts compile out if CONFIG_UML_TIME_TRAVEL_SUPPORT isn't set, time_travel_mode is defined to TT_MODE_OFF in that case. Signed-off-by: Johannes Berg Signed-off-by: Richard Weinberger

um: a bunch of headers can be killed by using generic-y

2012-03-24T23:29:55Z

Signed-off-by: Al Viro Signed-off-by: Richard Weinberger

um: clean up delay functions

2011-07-26T03:57:12Z

Both sys-i386 and sys-x86_64 support now ndelay(). The delay functions are based on arch/x86/lib/delay.c. Signed-off-by: Richard Weinberger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

x86, um: initial part of asm-um move

2008-10-23T05:55:19Z

Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin