leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

parisc: Drop per_cpu uaccess related exception_data struct

Browse Source 
The last users have been migrated off by commits d19f5e41b3 ("parisc:
Clean up fixup routines for get_user()/put_user()") and 554bfeceb8
("parisc: Fix access fault handling in pa_memcpy()").

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller 2017-04-02 16:51:58 +02:00
parent 741394ca54
commit c3e5523fcf
3 changed files with 0 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
arch/parisc/include/asm/uaccess.h
View File

@ -68,17 +68,6 @@ struct exception_table_entry {
#define ASM_EXCEPTIONTABLE_ENTRY_EFAULT( fault_addr, except_addr )\
ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr + 1)
/*
* The page fault handler stores, in a per-cpu area, the following information
* if a fixup routine is available.
*/
struct exception_data {
unsigned long fault_ip;
unsigned long fault_gp;
unsigned long fault_space;
unsigned long fault_addr;
};
/*
* load_sr2() preloads the space register %%sr2 - based on the value of
* get_fs() - with either a value of 0 to access kernel space (KERNEL_DS which

5
arch/parisc/kernel/asm-offsets.c
View File

@ -297,11 +297,6 @@ int main(void)
#else
DEFINE(HUGEPAGE_SIZE, PAGE_SIZE);
#endif
BLANK();
DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
DEFINE(EXCDATA_GP, offsetof(struct exception_data, fault_gp));
DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
BLANK();
DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
BLANK();

9
arch/parisc/mm/fault.c
View File

@ -29,8 +29,6 @@
#define BITSSET 0x1c0 /* for identifying LDCW */
DEFINE_PER_CPU(struct exception_data, exception_data);
int show_unhandled_signals = 1;
/*
@ -143,13 +141,6 @@ int fixup_exception(struct pt_regs *regs)
fix = search_exception_tables(regs->iaoq[0]);
if (fix) {
struct exception_data *d;
d = this_cpu_ptr(&exception_data);
d->fault_ip = regs->iaoq[0];
d->fault_gp = regs->gr[27];
d->fault_space = regs->isr;
d->fault_addr = regs->ior;
/*
* Fix up get_user() and put_user().
* ASM_EXCEPTIONTABLE_ENTRY_EFAULT() sets the least-significant