[tip: x86/apic] x86/irq: Fix comment on IRQ vector layout

From: tip-bot2 for Sohil Mehta
Date: Tue Aug 13 2024 - 06:05:56 EST


The following commit has been merged into the x86/apic branch of tip:

Commit-ID: a1fab3e69d9d0e9b62aab4450cb97da432ac3ef2
Gitweb: https://git.kernel.org/tip/a1fab3e69d9d0e9b62aab4450cb97da432ac3ef2
Author: Sohil Mehta <sohil.mehta@xxxxxxxxx>
AuthorDate: Mon, 12 Aug 2024 21:43:18
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Tue, 13 Aug 2024 12:00:09 +02:00

x86/irq: Fix comment on IRQ vector layout

commit f5a3562ec9dd ("x86/irq: Reserve a per CPU IDT vector for posted
MSIs") changed the first system vector from LOCAL_TIMER_VECTOR to
POSTED_MSI_NOTIFICATION_VECTOR. Reflect this change in the vector layout
comment as well.

However, instead of pointing to the specific vector, use the
FIRST_SYSTEM_VECTOR indirection which essentially refers to the same.

This avoids unnecessary modifications to the same comment whenever
additional system vectors get added.

Signed-off-by: Sohil Mehta <sohil.mehta@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Reviewed-by: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/all/20240812214318.2715360-1-sohil.mehta@xxxxxxxxx

---
arch/x86/include/asm/irq_vectors.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h
index 13aea8f..4705187 100644
--- a/arch/x86/include/asm/irq_vectors.h
+++ b/arch/x86/include/asm/irq_vectors.h
@@ -18,8 +18,8 @@
* Vectors 0 ... 31 : system traps and exceptions - hardcoded events
* Vectors 32 ... 127 : device interrupts
* Vector 128 : legacy int80 syscall interface
- * Vectors 129 ... LOCAL_TIMER_VECTOR-1
- * Vectors LOCAL_TIMER_VECTOR ... 255 : special interrupts
+ * Vectors 129 ... FIRST_SYSTEM_VECTOR-1 : device interrupts
+ * Vectors FIRST_SYSTEM_VECTOR ... 255 : special interrupts
*
* 64-bit x86 has per CPU IDT tables, 32-bit has one shared IDT table.
*