kernel: ltq-vdsl-vr11: fix compilation waring

Add patch fixing compilation warning from missing fallthrough
Fix compilation warning:
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/common/drv_dsl_cpe_api.c: In function 'DSL_DRV_AutobootControlSet':
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/common/drv_dsl_cpe_api.c:2648:19: error: this statement may fall through [-Werror=implicit-fallthrough=]
 2648 |                if (pContext->bAutobootThreadStarted)
      |                   ^
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/common/drv_dsl_cpe_api.c:2656:13: note: here
 2656 |             case DSL_AUTOBOOT_CTRL_STOP_PD:
      |             ^~~~
cc1: all warnings being treated as errors

/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/pm/drv_dsl_cpe_pm_core.c: In function 'DSL_DRV_PM_CountersReset':
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/pm/drv_dsl_cpe_pm_core.c:2358:7: error: this statement may fall through [-Werror=implicit-fallthrough=]
 2358 |    if (ResetType == DSL_PM_RESET_HISTORY)
      |       ^
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/pm/drv_dsl_cpe_pm_core.c:2361:4: note: here
 2361 |    case DSL_PM_RESET_TOTAL:
      |    ^~~~
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/pm/drv_dsl_cpe_pm_core.c:2365:7: error: this statement may fall through [-Werror=implicit-fallthrough=]
 2365 |    if (ResetType == DSL_PM_RESET_TOTAL)
      |       ^
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/pm/drv_dsl_cpe_pm_core.c:2368:4: note: here
 2368 |    case DSL_PM_RESET_HISTORY_SHOWTIME:
      |    ^~~~
cc1: all warnings being treated as errors

/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/device/drv_dsl_cpe_device_vrx.c: In function 'DSL_DRV_DEV_AutobootHandleTraining':
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/device/drv_dsl_cpe_device_vrx.c:8883:19: error: this statement may fall through [-Werror=implicit-fallthrough=]
 8883 |          bPreFail = DSL_TRUE;
      |          ~~~~~~~~~^~~~~~~~~~
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_api-ugw_8.5.2.10/src/device/drv_dsl_cpe_device_vrx.c:8889:7: note: here
 8889 |       case DSL_LINESTATE_EXCEPTION:
      |       ^~~~
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

diff --git a/package/kernel/lantiq/ltq-vdsl-vr11/patches/211-fix-compilation-warning-missing-fallthrough.patch b/package/kernel/lantiq/ltq-vdsl-vr11/patches/211-fix-compilation-warning-missing-fallthrough.patch
new file mode 100644 (file)
index 0000000..96e1ffe
--- /dev/null
+++ b/package/kernel/lantiq/ltq-vdsl-vr11/patches/211-fix-compilation-warning-missing-fallthrough.patch
@@ -0,0 +1,49 @@
+--- a/src/device/drv_dsl_cpe_device_vrx.c
++++ b/src/device/drv_dsl_cpe_device_vrx.c
+@@ -8885,6 +8885,9 @@ DSL_Error_t DSL_DRV_DEV_AutobootHandleTr
+             (pContext, SYS_DBG_MSG"DSL[%02d]: ORDERLY_SHUTDOWN state reached"
+             DSL_DRV_CRLF, DSL_DEV_NUM(pContext)));
+          /* do not use break here, continue handling */
++
++         fallthrough;
++
+ #endif /* INCLUDE_DSL_CPE_API_VRX */
+       case DSL_LINESTATE_EXCEPTION:
+          if (!bPreFail)
+--- a/src/pm/drv_dsl_cpe_pm_core.c
++++ b/src/pm/drv_dsl_cpe_pm_core.c
+@@ -2355,15 +2355,19 @@ DSL_Error_t DSL_DRV_PM_CountersReset(
+       }
+ #endif /* #ifdef INCLUDE_DSL_CPE_PM_HISTORY*/
+ 
+-   if (ResetType == DSL_PM_RESET_HISTORY)
+-      break;
++      if (ResetType == DSL_PM_RESET_HISTORY)
++         break;
++
++      fallthrough;
+ 
+    case DSL_PM_RESET_TOTAL:
+ #ifdef INCLUDE_DSL_CPE_PM_TOTAL_COUNTERS
+       memset(EpData.pRecTotal, nFillValue, EpData.nEpRecElementSize);
+ #endif /* #ifdef INCLUDE_DSL_CPE_PM_TOTAL_COUNTERS*/
+-   if (ResetType == DSL_PM_RESET_TOTAL)
+-      break;
++      if (ResetType == DSL_PM_RESET_TOTAL)
++         break;
++
++      fallthrough;
+ 
+    case DSL_PM_RESET_HISTORY_SHOWTIME:
+ #ifdef INCLUDE_DSL_CPE_PM_SHOWTIME_COUNTERS
+--- a/src/common/drv_dsl_cpe_api.c
++++ b/src/common/drv_dsl_cpe_api.c
+@@ -2652,6 +2652,8 @@ DSL_Error_t DSL_DRV_AutobootControlSet(
+                /* no break */
+                /* ... pass to restart*/
+ 
++               fallthrough;
++
+ #if defined (DSL_VRX_DEVICE_VR11)
+             case DSL_AUTOBOOT_CTRL_STOP_PD:
+ #endif