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Groups > linux.kernel > #1266161

[PATCH 12/14] Remove AT_VECTOR_SIZE_ARCH on x86

From Palmer Dabbelt <palmer@dabbelt.com>
Newsgroups linux.kernel
Subject [PATCH 12/14] Remove AT_VECTOR_SIZE_ARCH on x86
Date 2015-11-10 02:40 +0100
Message-ID <qt64H-6NO-51@gated-at.bofh.it> (permalink)
References <qqPKG-76u-7@gated-at.bofh.it> <qt64G-6NO-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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It looks like there aren't actually users of this macro anywhere:

 * The kernel doesn't use it on x86 because we don't suppor ELF FDPIC.

 * The only Google results point to LMKL patches, both the one that
   wrote this (from 2010) and my patch to hide it behind __KERNEL__.

 * I grep'd through all the source tarballs on my machine, and the
   only packages that matched were the kernel and crui (which copied a
   PPC kernel header).

Since I'm not sure how to actually provide the right answer (if I
understand correctly, CONFIG_IA32_EMULATION is not __i386__), the only
thing I can think of to do is to just remove the definition.

Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
Reviewed-by: Andrew Waterman <waterman@eecs.berkeley.edu>
Reviewed-by: Albert Ou <aou@eecs.berkeley.edu>
---
 arch/x86/include/uapi/asm/auxvec.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/x86/include/uapi/asm/auxvec.h b/arch/x86/include/uapi/asm/auxvec.h
index 77203ac..1316b4c 100644
--- a/arch/x86/include/uapi/asm/auxvec.h
+++ b/arch/x86/include/uapi/asm/auxvec.h
@@ -9,11 +9,4 @@
 #endif
 #define AT_SYSINFO_EHDR		33
 
-/* entries in ARCH_DLINFO: */
-#if defined(CONFIG_IA32_EMULATION) || !defined(CONFIG_X86_64)
-# define AT_VECTOR_SIZE_ARCH 2
-#else /* else it's non-compat x86-64 */
-# define AT_VECTOR_SIZE_ARCH 1
-#endif
-
 #endif /* _ASM_X86_AUXVEC_H */
-- 
2.4.10

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Thread

[PATCH v4] Remove #ifdef CONFIG_* from all userspace headers Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
  [PATCH 09/13] Move bp_type_idx to kernel/event/hw_breakpoint.c Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
    Re: [PATCH 09/13] Move bp_type_idx to kernel/event/hw_breakpoint.c kbuild test robot <lkp@intel.com> - 2015-11-03 22:30 +0100
    Re: [PATCH 09/13] Move bp_type_idx to kernel/event/hw_breakpoint.c kbuild test robot <lkp@intel.com> - 2015-11-03 22:40 +0100
    Re: [PATCH 09/13] Move bp_type_idx to kernel/event/hw_breakpoint.c Peter Zijlstra <peterz@infradead.org> - 2015-11-04 12:50 +0100
      Re: [PATCH 09/13] Move bp_type_idx to kernel/event/hw_breakpoint.c Peter Zijlstra <peterz@infradead.org> - 2015-11-04 13:30 +0100
        Re: [PATCH 09/13] Move bp_type_idx to kernel/event/hw_breakpoint.c Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-07 07:50 +0100
  [PATCH 03/13] Move COMPAT_ATM_ADDPARTY to net/atm/svc.c Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
  [PATCH 11/13] Always define MAX_RAW_MINORS as 2**20 in userspace Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
    Re: [PATCH 11/13] Always define MAX_RAW_MINORS as 2**20 in userspace kbuild test robot <lkp@intel.com> - 2015-11-03 21:20 +0100
  [PATCH 13/13] Re-enable and clean up "check_config()" in headers_check.pl Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
    Re: [PATCH 13/13] Re-enable and clean up "check_config()" in  headers_check.pl kbuild test robot <lkp@intel.com> - 2015-11-03 21:30 +0100
    Re: [PATCH 13/13] Re-enable and clean up "check_config()" in  headers_check.pl kbuild test robot <lkp@intel.com> - 2015-11-03 21:30 +0100
  [PATCH 07/13] Make FB_BACKLIGHT_{LEVELS,MAX} always visible Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
  [PATCH 02/13] Use sys_ni.c instead of #ifdef to disable fork on CONFIG_NOMMU Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
  [PATCH 01/13] Remove #ifdef CONFIG_64BIT from all asm-generic/fcntl.h Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
  [PATCH 12/13] Remove AT_VECTOR_SIZE_ARCH on x86 Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
  [PATCH 08/13] Move MAX_SHARED_LIBS to fs/binfmt_flat.c Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 20:50 +0100
  [PATCH 06/13] Move ep_take_care_of_epollwakeup() to fs/eventpoll.c Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 21:00 +0100
  [PATCH 04/13] Always expose MAP_UNINITIALIZED to userspace Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 21:00 +0100
  [PATCH 05/13] Split FDPIC "struct elf_prstatus" to "struct elf_fdpic_prstatus" Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-03 21:00 +0100
  [PATCH 10/14] Move USE_WCACHING to drivers/block/pktcdvd.c Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 07/14] Make FB_BACKLIGHT_{LEVELS,MAX} always visible Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 08/14] Move MAX_SHARED_LIBS to fs/binfmt_flat.c Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 05/14] Split FDPIC "struct elf_prstatus" to "struct elf_fdpic_prstatus" Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 02/14] Use sys_ni.c instead of #ifdef to disable fork on CONFIG_NOMMU Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 11/14] Always define MAX_RAW_MINORS as 2**20 in userspace Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 09/14] Move bp_type_idx to include/linux/hw_breakpoint.h Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 04/14] Always expose MAP_UNINITIALIZED to userspace Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 14/14] Re-enable and clean up "check_config()" in headers_check.pl Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 01/14] Remove #ifdef CONFIG_64BIT from all asm-generic/fcntl.h Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 13/14] Hide CONFIG_PHY_RAM_BASE_ADDRESS from userspace Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 12/14] Remove AT_VECTOR_SIZE_ARCH on x86 Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 03/14] Move COMPAT_ATM_ADDPARTY to net/atm/svc.c Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH 06/14] Move ep_take_care_of_epollwakeup() to fs/eventpoll.c Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100
  [PATCH v5] Remove #ifdef CONFIG_* from all userspace headers Palmer Dabbelt <palmer@dabbelt.com> - 2015-11-10 02:40 +0100

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