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| author | Palmer Dabbelt <palmer@sifive.com> | 2018-08-03 12:27:19 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2018-08-20 10:55:24 -0700 |
| commit | e45c7aca4914efc8bcdd8fc231efadcdc87ae2e5 (patch) | |
| tree | 85dbb9cb9528ce2f392d44db75b8acde5c43cfd2 /drivers | |
| parent | 7847e7052fc37fff9761347411f2838849e2146d (diff) | |
| download | linux-e45c7aca4914efc8bcdd8fc231efadcdc87ae2e5.tar.bz2 | |
RISC-V: Don't use a global include guard for uapi/asm/syscalls.h
This file is expected to be included multiple times in the same file in
order to allow the __SYSCALL macro to generate system call tables. With
a global include guard we end up missing __NR_riscv_flush_icache in the
syscall table, which results in icache flushes that escape the vDSO call
to not actually do anything.
The fix is to move to per-#define include guards, which allows the
system call tables to actually be populated. Thanks to Macrus Comstedt
for finding and fixing the bug!
Cc: Marcus Comstedt <marcus@mc.pp.se>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions