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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-05-09 17:05:11 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-12 21:22:11 +1000 |
| commit | 249c9b0cd193d983c3a0b00f3fd3b92333bfeebe (patch) | |
| tree | b790402c63929474b5805f95c19f55616e4840c2 /arch/powerpc | |
| parent | e963b7a28b2bf2416304e1a15df967fcf662aff5 (diff) | |
| download | linux-stable-249c9b0cd193d983c3a0b00f3fd3b92333bfeebe.tar.gz linux-stable-249c9b0cd193d983c3a0b00f3fd3b92333bfeebe.tar.bz2 linux-stable-249c9b0cd193d983c3a0b00f3fd3b92333bfeebe.zip | |
powerpc/40x: Make more space for system call exception
When CONFIG_VIRT_CPU_ACCOUNTING is selected, system call exception
handler doesn't fit below 0xd00 and build fails.
As exception 0xd00 doesn't exist and is never generated by 40x,
comment it out in order to get more space for system call exception.
Fixes: 9e27086292aa ("powerpc/32: Warn and return ENOSYS on syscalls from kernel")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/633165d72f75b4ef4c0901aebe99d3915c93e9a2.1589043863.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/head_40x.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S index 9bb663977e84..2cec543c38f0 100644 --- a/arch/powerpc/kernel/head_40x.S +++ b/arch/powerpc/kernel/head_40x.S @@ -344,8 +344,9 @@ _ENTRY(saved_ksp_limit) /* 0x0C00 - System Call Exception */ START_EXCEPTION(0x0C00, SystemCall) SYSCALL_ENTRY 0xc00 +/* Trap_0D is commented out to get more space for system call exception */ - EXCEPTION(0x0D00, Trap_0D, unknown_exception, EXC_XFER_STD) +/* EXCEPTION(0x0D00, Trap_0D, unknown_exception, EXC_XFER_STD) */ EXCEPTION(0x0E00, Trap_0E, unknown_exception, EXC_XFER_STD) EXCEPTION(0x0F00, Trap_0F, unknown_exception, EXC_XFER_STD) |