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1e8249b8a4
linux_dsm_epyc7002/arch
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Helge Deller 1e8249b8a4 parisc: Enable -ffunction-sections for modules on 32-bit kernel 
Frank Schreiner reported, that since kernel 4.18 he faces sysfs-warnings
when loading modules on a 32-bit kernel. Here is one such example:

 sysfs: cannot create duplicate filename '/module/nfs/sections/.text'
 CPU: 0 PID: 98 Comm: modprobe Not tainted 4.18.0-2-parisc #1 Debian 4.18.10-2
 Backtrace:
  [<1017ce2c>] show_stack+0x3c/0x50
  [<107a7210>] dump_stack+0x28/0x38
  [<103f900c>] sysfs_warn_dup+0x88/0xac
  [<103f8b1c>] sysfs_add_file_mode_ns+0x164/0x1d0
  [<103f9e70>] internal_create_group+0x11c/0x304
  [<103fa0a0>] sysfs_create_group+0x48/0x60
  [<1022abe8>] load_module.constprop.35+0x1f9c/0x23b8
  [<1022b278>] sys_finit_module+0xd0/0x11c
  [<101831dc>] syscall_exit+0x0/0x14

This warning gets triggered by the fact, that due to commit 24b6c22504
("parisc: Build kernel without -ffunction-sections") we now get multiple .text
sections in the kernel modules for which sysfs_create_group() can't create
multiple virtual files.

This patch works around the problem by re-enabling the -ffunction-sections
compiler option for modules, while keeping it disabled for the non-module
kernel code.

Reported-by: Frank Scheiner <frank.scheiner@web.de>
Fixes: 24b6c22504 ("parisc: Build kernel without -ffunction-sections")
Cc: <stable@vger.kernel.org> # v4.18+
Signed-off-by: Helge Deller <deller@gmx.de>
2018-12-02 20:34:07 +01:00
..
alpha TTY/Serial fixes for 4.20-rc2 2018-11-10 13:32:14 -06:00
arc mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
arm Merge branch 'spectre' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-11-18 10:45:09 -08:00
arm64 arm64: cpufeature: Fix mismerge of CONFIG_ARM64_SSBD block 2018-11-23 18:44:16 +00:00
c6x c6x changes for 4.20 2018-10-31 15:39:25 -07:00
csky csky: dtb Kbuild fixup patches for linux-4.20-rc1 2018-11-01 09:04:30 -07:00
h8300 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
hexagon mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
ia64 memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
m68k s390 updates for 4.20-rc2 2018-11-09 06:30:44 -06:00
microblaze s390 updates for 4.20-rc2 2018-11-09 06:30:44 -06:00
mips MIPS: Loongson3,SGI-IP27: Simplify max_low_pfn calculation 2018-11-15 15:42:15 -08:00
nds32 s390 updates for 4.20-rc2 2018-11-09 06:30:44 -06:00
nios2 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
openrisc mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
parisc parisc: Enable -ffunction-sections for modules on 32-bit kernel 2018-12-02 20:34:07 +01:00
powerpc powerpc/64: Fix kernel stack 16-byte alignment 2018-11-15 14:48:43 +11:00
riscv RISC-V: recognize S/U mode bits in print_isa 2018-11-20 05:19:28 -08:00
s390 s390 updates for 4.20-rc2 2018-11-09 06:30:44 -06:00
sh mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2018-11-01 09:07:04 -07:00
um for-linus-20181109 2018-11-09 16:31:51 -06:00
unicore32 memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
x86 perf/x86/intel/uncore: Support CoffeeLake 8th CBOX 2018-11-12 05:03:26 +01:00
xtensa Xtensa fixes for v4.20-rc3 2018-11-16 10:10:27 -06:00
.gitignore
Kconfig New gcc plugin: stackleak 2018-11-01 11:46:27 -07:00