Re: [PATCH 03/29] modpost: add read_text_file() and get_line() helpers

[Peter Zijlstra]

On Wed, May 20, 2020 at 09:17:45PM +0900, Masahiro Yamada wrote:

> The specification [1] says this:
> 
> "The value returned may be less than nbyte if the number of bytes
> left in the file is less than nbyte, if the read() request was
> interrupted by a signal, or if the file is a pipe or FIFO or
> special file and has fewer than nbyte bytes immediately available
> for reading."
> 
> 
> This case does not meet any of 'if ...' parts.

So nobody ever ^Z's their build? I really don't think you can assume
that you'll never get a signal. That's just asking for trouble.

Doing the right thing here is 'trivial', there is absolutely no reason
to not do it.