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| author |   Helge Deller <deller@gmx.de> | 2018-10-25 08:31:16 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2018-10-26 08:20:58 +0200 |
| commit | 87613bb9d20c556b5eeae04f4caf40701189f07b (patch) | |
| tree | be29e6651ce3b2053213544b4df9e4ae44b0fdfb /arch/parisc/kernel/entry.S | |
| parent | parisc64: change __kernel_suseconds_t to match glibc (diff) | |
| download | linux-dev-87613bb9d20c556b5eeae04f4caf40701189f07b.tar.xz linux-dev-87613bb9d20c556b5eeae04f4caf40701189f07b.zip | |
parisc: Use LINUX_GATEWAY_SPACE constant in entry.S
Use and mention the predefined LINUX_GATEWAY_SPACE constant in the
various important code sections which deal with the gateway page.
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/kernel/entry.S')
| -rw-r--r-- | arch/parisc/kernel/entry.S | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index 1c60408a64ad..d5eb19efa65b 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -394,6 +394,7 @@ */ .macro space_check spc,tmp,fault mfsp %sr7,\tmp + /* check against %r0 which is same value as LINUX_GATEWAY_SPACE */ or,COND(<>) %r0,\spc,%r0 /* user may execute gateway page * as kernel, so defeat the space * check if it is */ @@ -910,9 +911,9 @@ intr_check_sig: * Only do signals if we are returning to user space */ LDREG PT_IASQ0(%r16), %r20 - cmpib,COND(=),n 0,%r20,intr_restore /* backward */ + cmpib,COND(=),n LINUX_GATEWAY_SPACE, %r20, intr_restore /* backward */ LDREG PT_IASQ1(%r16), %r20 - cmpib,COND(=),n 0,%r20,intr_restore /* backward */ + cmpib,COND(=),n LINUX_GATEWAY_SPACE, %r20, intr_restore /* backward */ /* NOTE: We need to enable interrupts if we have to deliver * signals. We used to do this earlier but it caused kernel |