Messages in this thread | | | From | Linus Torvalds <> | Date | Sat, 20 Aug 2022 14:44:09 -0700 | Subject | Re: [RFC][PATCHES] termios.h cleanups |
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On Sat, Aug 20, 2022 at 11:44 AM Al Viro <viro@zeniv.linux.org.uk> wrote: > > Umm... Might as well, I guess... Where to put those, though? > drivers/tty/tty_ioctl.c is not an option, unfortunately - it'll pick > the local definitions, __weak or no __weak.
IThat bug is ancient history, and tty_ioctl.c is just fine.
Yes, we used to have the "you can't have __weak function definitions in the same file that uses them" rule.
But it was due to a bug in gcc-4.1, which would inline weak functions.
But we long since gave up on gcc-4.1, and we have __weak functions declarations in the same file as the use in multiple places. See for example arch_release_task_struct() in kernel/fork.c.
Linus
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