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lantiq: ltq-tapi: fix compatibility with Linux 4.15+ 

Linux 4.15 removes the init_timer() API. It's replaced by two functions:
- timer_setup() is used instead of init_timer() and also replaces the
  timer "function" (callback) setup.
- from_timer() has to be used to obtain the use-case specific data from
  a struct timer_list, which is now passed to the timer callback.

Update the timer API to be compatible with Linux 4.15+ so it compiles
with the upcoming Linux 4.19 kernel update.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
master
Martin Blumenstingl 2019-07-03 20:10:33 +02:00 committed by Mathias Kresin
parent c3e31b6a9b
commit bf21b6e44d
1 changed files with 48 additions and 0 deletions
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48
package/kernel/lantiq/ltq-tapi/patches/400-linux-415.patch Normal file
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@ -0,0 +1,48 @@
--- a/src/drv_tapi_linux.c
+++ b/src/drv_tapi_linux.c
@@ -119,7 +119,11 @@ struct _TAPI_FD_PRIV_DATA
/* ============================= */
/* Local Functions */
/* ============================= */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0)
static IFX_void_t TAPI_timer_call_back (IFX_ulong_t arg);
+#else
+static IFX_void_t TAPI_timer_call_back (struct timer_list *t);
+#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
static IFX_void_t TAPI_tqueue (IFX_void_t *pWork);
#else /* for Kernel newer or equal 2.6.20 */
@@ -3384,11 +3388,15 @@ Timer_ID TAPI_Create_Timer(TIMER_ENTRY p
pTimerData->nArgument = nArgument;
pTimerData->bStopped = IFX_FALSE;
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
init_timer(&(pTimerData->Timer_List));
/* set timer call back function */
pTimerData->Timer_List.function = TAPI_timer_call_back;
pTimerData->Timer_List.data = (IFX_ulong_t) pTimerData;
+#else
+ timer_setup(&(pTimerData->Timer_List), TAPI_timer_call_back, 0);
+#endif
/* Initialize Timer Task */
#ifdef LINUX_2_6
@@ -3529,9 +3537,17 @@ static IFX_void_t TAPI_tqueue (struct wo
\param arg Pointer to corresponding timer ID.
*/
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0)
static IFX_void_t TAPI_timer_call_back (IFX_ulong_t arg)
+#else
+static IFX_void_t TAPI_timer_call_back (struct timer_list *t)
+#endif
{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0)
Timer_ID Timer = (Timer_ID) arg;
+#else
+ Timer_ID Timer = from_timer(Timer, t, Timer_List);
+#endif
/* do the operation in process context,
not in interrupt context */
#ifdef LINUX_2_6