Re: Linux 4.10-rc1

[Hanjun Guo]

Hi Linus,

On 2016/12/26 8:41, Linus Torvalds wrote:
> It's Christmas Day, and it's two weeks since the merge window opened.
> Thus, the merge window is now closed.
>
> I did a few final pulls today, but I also rejected a couple of pulls
> that came in late in the window and looked dodgy. You know who you
> are.
>
> On the whole, this wasn't all that big a release - nothing like 4.9.
> Although it wasn't tiny either. I think 4.7 was smaller. 4.8 might
> have been too. It's xmas day, and right now I can't be arsed to
> actually do the statistics I'd normally do.
>
> Everything looks pretty normal, although we had an unusual amount of
> tree-wide final cleanups in the last days of the merge window. But the
> general statistics look fairly common: a bit over half is drivers,
> maybe slightly less arch updates than normal, and a fair amount of
> documentation updates due to the sphinx conversion. And then the usual
> misc noise all over, although the perf tooling updates do stand out.
>
> The shortlog is much too big, as it always is during the merge window,
> so as usual you just get the merge-log.

Kejian and I got massive compile error when cross-compile the kernel for ARM64, such as

./include/asm-generic/atomic-long.h:23: Error: unknown mnemonic `typedef' -- `typedef atomic64_t atomic_long_t'
./include/asm-generic/atomic-long.h:44: Error: unknown mnemonic `static' -- `static inline long atomic_long_read(const atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:44: Error: unknown mnemonic `return' -- `return (long)READ_ONCE((v)->counter)'
./include/asm-generic/atomic-long.h:44: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:45: Error: unknown mnemonic `static' -- `static inline long atomic_long_read_acquire(const atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:45: Error: unknown mnemonic `return' -- `return (long)smp_load_acquire(&(v)->counter)'
./include/asm-generic/atomic-long.h:45: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:56: Error: unknown mnemonic `static' -- `static inline void atomic_long_set(atomic_long_t*l,long i){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:56: Error: unknown mnemonic `write_once' -- `write_once(((v)->counter), (i))'
./include/asm-generic/atomic-long.h:56: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:57: Error: unknown mnemonic `static' -- `static inline void atomic_long_set_release(atomic_long_t*l,long i){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:57: Error: unknown mnemonic `smp_store_release' -- `smp_store_release(&(v)->counter, (i))'
./include/asm-generic/atomic-long.h:57: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:69: Error: unknown mnemonic `static' -- `static inline long atomic_long_add_return(long i,atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:69: Error: unknown mnemonic `return' -- `return (long)atomic64_add_return(i,v)'
./include/asm-generic/atomic-long.h:69: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:70: Error: unknown mnemonic `static' -- `static inline long atomic_long_add_return_relaxed(long i,atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:70: Error: unknown mnemonic `return' -- `return (long)atomic64_add_return_relaxed(i,v)'
./include/asm-generic/atomic-long.h:70: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:71: Error: unknown mnemonic `static' -- `static inline long atomic_long_add_return_acquire(long i,atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:71: Error: unknown mnemonic `return' -- `return (long)atomic64_add_return_acquire(i,v)'
./include/asm-generic/atomic-long.h:71: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:72: Error: unknown mnemonic `static' -- `static inline long atomic_long_add_return_release(long i,atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:72: Error: unknown mnemonic `return' -- `return (long)atomic64_add_return_release(i,v)'
./include/asm-generic/atomic-long.h:72: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:73: Error: unknown mnemonic `static' -- `static inline long atomic_long_sub_return(long i,atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:73: Error: unknown mnemonic `return' -- `return (long)atomic64_sub_return(i,v)'
./include/asm-generic/atomic-long.h:73: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:74: Error: unknown mnemonic `static' -- `static inline long atomic_long_sub_return_relaxed(long i,atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:74: Error: unknown mnemonic `return' -- `return (long)atomic64_sub_return_relaxed(i,v)'
./include/asm-generic/atomic-long.h:74: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:75: Error: unknown mnemonic `static' -- `static inline long atomic_long_sub_return_acquire(long i,atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:75: Error: unknown mnemonic `return' -- `return (long)atomic64_sub_return_acquire(i,v)'
./include/asm-generic/atomic-long.h:75: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:76: Error: unknown mnemonic `static' -- `static inline long atomic_long_sub_return_release(long i,atomic_long_t*l){atomic64_t*v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:76: Error: unknown mnemonic `return' -- `return (long)atomic64_sub_return_release(i,v)'
./include/asm-generic/atomic-long.h:76: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:101: Error: unknown mnemonic `static' -- `static inline void atomic_long_inc(atomic_long_t*l)'
./include/asm-generic/atomic-long.h:102: Error: junk at end of line, first unrecognized character is `{'
./include/asm-generic/atomic-long.h:103: Error: unknown mnemonic `atomic64_t' -- `atomic64_t *v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:105: Error: unknown mnemonic `atomic64_add' -- `atomic64_add(1, (v))'
./include/asm-generic/atomic-long.h:106: Error: junk at end of line, first unrecognized character is `}'
./include/asm-generic/atomic-long.h:108: Error: unknown mnemonic `static' -- `static inline void atomic_long_dec(atomic_long_t*l)'
./include/asm-generic/atomic-long.h:109: Error: junk at end of line, first unrecognized character is `{'
./include/asm-generic/atomic-long.h:110: Error: unknown mnemonic `atomic64_t' -- `atomic64_t *v=(atomic64_t*)l'
./include/asm-generic/atomic-long.h:112: Error: unknown mnemonic `atomic64_sub' -- `atomic64_sub(1, (v))'
./include/asm-generic/atomic-long.h:113: Error: junk at end of line, first unrecognized character is `}'

bisect to commit 7c0f6ba682b9c7632072ffbedf8d328c8f3c42ba

commit 7c0f6ba682b9c7632072ffbedf8d328c8f3c42ba
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date:   Sat Dec 24 11:46:01 2016 -0800

    Replace <asm/uaccess.h> with <linux/uaccess.h> globally
   
    This was entirely automated, using the script by Al:
   
      PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
      sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
            $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)
   
    to do the replacement at the end of the merge window.
   
    Requested-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
    Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

I reverted and things back to normal, report it now to see if anyone
has clue.

Thanks
Hanjun