Commit-ID:  82c62fa0c49aa305104013cee4468772799bb391
Gitweb:     https://git.kernel.org/tip/82c62fa0c49aa305104013cee4468772799bb391
Author:     Josh Poimboeuf <jpoim...@redhat.com>
AuthorDate: Fri, 20 Oct 2017 11:21:35 -0500
Committer:  Ingo Molnar <mi...@kernel.org>
CommitDate: Mon, 23 Oct 2017 13:31:34 +0200

x86/asm: Don't use the confusing '.ifeq' directive

I find the '.ifeq <expression>' directive to be confusing.  Reading it
quickly seems to suggest its opposite meaning, or that it's missing an
argument.

Improve readability by replacing all of its x86 uses with
'.if <expression> == 0'.

Signed-off-by: Josh Poimboeuf <jpoim...@redhat.com>
Cc: Andrei Vagin <ava...@virtuozzo.com>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Link: 
http://lkml.kernel.org/r/757da028e802c7e98d23fbab8d234b1063e161cf.1508516398.git.jpoim...@redhat.com
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
 arch/x86/entry/entry_64.S | 2 +-
 arch/x86/kernel/head_32.S | 2 +-
 arch/x86/kernel/head_64.S | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index f6cdb7a..846e84a 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -817,7 +817,7 @@ ENTRY(\sym)
 
        ASM_CLAC
 
-       .ifeq \has_error_code
+       .if \has_error_code == 0
        pushq   $-1                             /* ORIG_RAX: no syscall to 
restart */
        .endif
 
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 9ed3074..6e50f87 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -401,7 +401,7 @@ ENTRY(early_idt_handler_array)
        # 24(%rsp) error code
        i = 0
        .rept NUM_EXCEPTION_VECTORS
-       .ifeq (EXCEPTION_ERRCODE_MASK >> i) & 1
+       .if ((EXCEPTION_ERRCODE_MASK >> i) & 1) == 0
        pushl $0                # Dummy error code, to make stack frame uniform
        .endif
        pushl $i                # 20(%esp) Vector number
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 42e32c2..311db1a 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -273,7 +273,7 @@ ENDPROC(start_cpu0)
 ENTRY(early_idt_handler_array)
        i = 0
        .rept NUM_EXCEPTION_VECTORS
-       .ifeq (EXCEPTION_ERRCODE_MASK >> i) & 1
+       .if ((EXCEPTION_ERRCODE_MASK >> i) & 1) == 0
                UNWIND_HINT_IRET_REGS
                pushq $0        # Dummy error code, to make stack frame uniform
        .else

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