diff options
| author | Andy Lutomirski | 2019-06-26 21:46:18 -0700 |
|---|---|---|
| committer | Paul Walmsley | 2019-07-01 13:13:36 -0700 |
| commit | 556024d41f39ce23809178dd81e1f95802ae7d94 (patch) | |
| tree | eb9c7c761bf0006c8d1bfcfe7906cf5bc27ea641 /arch/riscv | |
| parent | 71ec982fad75aea7ca409a55eefecff328597f62 (diff) | |
riscv: Remove gate area stubs
Since commit a6c19dfe3994 ("arm64,ia64,ppc,s390,sh,tile,um,x86,mm:
remove default gate area"), which predates riscv's inclusion in
Linux by almost three years, the default behavior wrt the gate area
is sane. Remove riscv's gate area stubs.
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/asm/page.h | 4 | ||||
| -rw-r--r-- | arch/riscv/kernel/vdso.c | 19 |
2 files changed, 0 insertions, 23 deletions
diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h index 8ddb6c7fedac..d3e5f6c0c21a 100644 --- a/arch/riscv/include/asm/page.h +++ b/arch/riscv/include/asm/page.h @@ -115,8 +115,4 @@ extern unsigned long min_low_pfn; #include <asm-generic/memory_model.h> #include <asm-generic/getorder.h> -/* vDSO support */ -/* We do define AT_SYSINFO_EHDR but don't use the gate mechanism */ -#define __HAVE_ARCH_GATE_AREA - #endif /* _ASM_RISCV_PAGE_H */ diff --git a/arch/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c index a0084c36d270..c9c21e0d5641 100644 --- a/arch/riscv/kernel/vdso.c +++ b/arch/riscv/kernel/vdso.c @@ -92,22 +92,3 @@ const char *arch_vma_name(struct vm_area_struct *vma) return "[vdso]"; return NULL; } - -/* - * Function stubs to prevent linker errors when AT_SYSINFO_EHDR is defined - */ - -int in_gate_area_no_mm(unsigned long addr) -{ - return 0; -} - -int in_gate_area(struct mm_struct *mm, unsigned long addr) -{ - return 0; -} - -struct vm_area_struct *get_gate_vma(struct mm_struct *mm) -{ - return NULL; -} |