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| author | Chris Metcalf <cmetcalf@ezchip.com> | 2015-06-04 13:55:50 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@ezchip.com> | 2015-06-04 13:55:50 -0400 |
| commit | 5316a64ce518f850afb0fca322b85b6dff3cb59f (patch) | |
| tree | d78376c10e3f5da5b06395670f098ec3e08f4af0 /arch/tile | |
| parent | 9ae4d6bf228ec7f338e8220babb87ee4fae10429 (diff) | |
| download | op-kernel-dev-5316a64ce518f850afb0fca322b85b6dff3cb59f.zip op-kernel-dev-5316a64ce518f850afb0fca322b85b6dff3cb59f.tar.gz | |
tile: avoid a "label not used" warning in do_page_fault()
There are two different ifdef cases where the label is used,
but if neither is true, the label is unused and the compiler
generates a warning.
Refactor the code the way x86 does so that there is a
do_page_fault() that just does exception handling for
context tracking, and make __do_page_fault() a static inline
so that various cases can just return instead of doing a
jump to "done".
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Diffstat (limited to 'arch/tile')
| -rw-r--r-- | arch/tile/mm/fault.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c index e83cc99..4787ee8 100644 --- a/arch/tile/mm/fault.c +++ b/arch/tile/mm/fault.c @@ -699,11 +699,10 @@ struct intvec_state do_page_fault_ics(struct pt_regs *regs, int fault_num, * interrupt away appropriately and return immediately. We can't do * page faults for user code while in kernel mode. */ -void do_page_fault(struct pt_regs *regs, int fault_num, - unsigned long address, unsigned long write) +static inline void __do_page_fault(struct pt_regs *regs, int fault_num, + unsigned long address, unsigned long write) { int is_page_fault; - enum ctx_state prev_state = exception_enter(); #ifdef CONFIG_KPROBES /* @@ -713,7 +712,7 @@ void do_page_fault(struct pt_regs *regs, int fault_num, */ if (notify_die(DIE_PAGE_FAULT, "page fault", regs, -1, regs->faultnum, SIGSEGV) == NOTIFY_STOP) - goto done; + return; #endif #ifdef __tilegx__ @@ -835,18 +834,22 @@ void do_page_fault(struct pt_regs *regs, int fault_num, async->is_fault = is_page_fault; async->is_write = write; async->address = address; - goto done; + return; } } #endif handle_page_fault(regs, fault_num, is_page_fault, address, write); +} -done: +void do_page_fault(struct pt_regs *regs, int fault_num, + unsigned long address, unsigned long write) +{ + enum ctx_state prev_state = exception_enter(); + __do_page_fault(regs, fault_num, address, write); exception_exit(prev_state); } - #if CHIP_HAS_TILE_DMA() /* * This routine effectively re-issues asynchronous page faults |
