[PATCH v2] Documentation: in_irq() cleanup

[Changbin Du <changbin.du@gmail.com>]

Replace the obsolete and ambiguos macro in_irq() with new
macro in_hardirq().

Signed-off-by: Changbin Du <changbin.du@gmail.com>

---
v2: remove unnecessary ':c:func:'.
---
 Documentation/kernel-hacking/hacking.rst                    | 4 ++--
 Documentation/kernel-hacking/locking.rst                    | 4 ++--
 Documentation/translations/it_IT/kernel-hacking/hacking.rst | 2 +-
 Documentation/translations/it_IT/kernel-hacking/locking.rst | 4 ++--
 Documentation/translations/zh_CN/kernel-hacking/hacking.rst | 2 +-
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/Documentation/kernel-hacking/hacking.rst b/Documentation/kernel-hacking/hacking.rst
index df65c19aa7df..55bd37a2efb0 100644
--- a/Documentation/kernel-hacking/hacking.rst
+++ b/Documentation/kernel-hacking/hacking.rst
@@ -76,8 +76,8 @@ handler is never re-entered: if the same interrupt arrives, it is queued
 fast: frequently it simply acknowledges the interrupt, marks a 'software
 interrupt' for execution and exits.
 
-You can tell you are in a hardware interrupt, because
-:c:func:`in_irq()` returns true.
+You can tell you are in a hardware interrupt, because in_hardirq() returns
+true.
 
 .. warning::
 
diff --git a/Documentation/kernel-hacking/locking.rst b/Documentation/kernel-hacking/locking.rst
index ed1284c6f078..94232ed1d592 100644
--- a/Documentation/kernel-hacking/locking.rst
+++ b/Documentation/kernel-hacking/locking.rst
@@ -1406,7 +1406,7 @@ bh
   half will be running at any time.
 
 Hardware Interrupt / Hardware IRQ
-  Hardware interrupt request. in_irq() returns true in a
+  Hardware interrupt request. in_hardirq() returns true in a
   hardware interrupt handler.
 
 Interrupt Context
@@ -1418,7 +1418,7 @@ SMP
   (``CONFIG_SMP=y``).
 
 Software Interrupt / softirq
-  Software interrupt handler. in_irq() returns false;
+  Software interrupt handler. in_hardirq() returns false;
   in_softirq() returns true. Tasklets and softirqs both
   fall into the category of 'software interrupts'.
 
diff --git a/Documentation/translations/it_IT/kernel-hacking/hacking.rst b/Documentation/translations/it_IT/kernel-hacking/hacking.rst
index f6beb385b4ac..487c8732dfe8 100644
--- a/Documentation/translations/it_IT/kernel-hacking/hacking.rst
+++ b/Documentation/translations/it_IT/kernel-hacking/hacking.rst
@@ -90,7 +90,7 @@ i gestori d'interruzioni devono essere veloci: spesso si limitano
 esclusivamente a notificare la presa in carico dell'interruzione,
 programmare una 'interruzione software' per l'esecuzione e quindi terminare.
 
-Potete dire d'essere in una interruzione hardware perché :c:func:`in_irq()`
+Potete dire d'essere in una interruzione hardware perché in_hardirq()
 ritorna vero.
 
 .. warning::
diff --git a/Documentation/translations/it_IT/kernel-hacking/locking.rst b/Documentation/translations/it_IT/kernel-hacking/locking.rst
index 1e7c84def369..1efb8293bf1f 100644
--- a/Documentation/translations/it_IT/kernel-hacking/locking.rst
+++ b/Documentation/translations/it_IT/kernel-hacking/locking.rst
@@ -1459,11 +1459,11 @@ contesto utente
   che hardware.
 
 interruzione hardware
-  Richiesta di interruzione hardware. in_irq() ritorna vero in un
+  Richiesta di interruzione hardware. in_hardirq() ritorna vero in un
   gestore d'interruzioni hardware.
 
 interruzione software / softirq
-  Gestore di interruzioni software: in_irq() ritorna falso;
+  Gestore di interruzioni software: in_hardirq() ritorna falso;
   in_softirq() ritorna vero. I tasklet e le softirq sono entrambi
   considerati 'interruzioni software'.
 
diff --git a/Documentation/translations/zh_CN/kernel-hacking/hacking.rst b/Documentation/translations/zh_CN/kernel-hacking/hacking.rst
index ab974faddecf..f2bc154c5bcc 100644
--- a/Documentation/translations/zh_CN/kernel-hacking/hacking.rst
+++ b/Documentation/translations/zh_CN/kernel-hacking/hacking.rst
@@ -68,7 +68,7 @@
 它将被排队（或丢弃）。因为它会关闭中断，所以处理程序必须很快：通常它只是
 确认中断，标记一个“软件中断”以执行并退出。
 
-您可以通过 :c:func:`in_irq()` 返回真来判断您处于硬件中断状态。
+您可以通过 in_hardirq() 返回真来判断您处于硬件中断状态。
 
 .. warning::
 
-- 
2.30.2