==========
build_clang - FAILED


../drivers/net/dsa/yt921x.c:2198:2: warning: variable 'ctrl' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
 2198 |         default:
      |         ^~~~~~~
../drivers/net/dsa/yt921x.c:2208:2: note: uninitialized use occurs here
 2208 |         ctrl |= YT921X_PORT_RX_MAC_EN | YT921X_PORT_TX_MAC_EN;
      |         ^~~~
../drivers/net/dsa/yt921x.c:2179:10: note: initialize the variable 'ctrl' to silence this warning
 2179 |         u32 ctrl;
      |                 ^
      |                  = 0
../drivers/net/dsa/yt921x.c:2329:3: warning: variable 'ctrl' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
 2329 |                 default:
      |                 ^~~~~~~
../drivers/net/dsa/yt921x.c:2334:17: note: uninitialized use occurs here
 2334 |                                              mask, ctrl);
      |                                                    ^~~~
../drivers/net/dsa/yt921x.c:2287:10: note: initialize the variable 'ctrl' to silence this warning
 2287 |         u32 ctrl;
      |                 ^
      |                  = 0
2 warnings generated.
../drivers/net/dsa/yt921x.c:2198:2: warning: variable 'ctrl' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
 2198 |         default:
      |         ^~~~~~~
../drivers/net/dsa/yt921x.c:2208:2: note: uninitialized use occurs here
 2208 |         ctrl |= YT921X_PORT_RX_MAC_EN | YT921X_PORT_TX_MAC_EN;
      |         ^~~~
../drivers/net/dsa/yt921x.c:2179:10: note: initialize the variable 'ctrl' to silence this warning
 2179 |         u32 ctrl;
      |                 ^
      |                  = 0
../drivers/net/dsa/yt921x.c:2329:3: warning: variable 'ctrl' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
 2329 |                 default:
      |                 ^~~~~~~
../drivers/net/dsa/yt921x.c:2334:17: note: uninitialized use occurs here
 2334 |                                              mask, ctrl);
      |                                                    ^~~~
../drivers/net/dsa/yt921x.c:2287:10: note: initialize the variable 'ctrl' to silence this warning
 2287 |         u32 ctrl;
      |                 ^
      |                  = 0
2 warnings generated.
New errors added
--- /tmp/tmp.HkhrwiAMgj	2025-09-11 23:49:38.668387004 -0700
+++ /tmp/tmp.idSRkfRwkF	2025-09-11 23:53:20.786555873 -0700
@@ -0,0 +1,21 @@
+../drivers/net/dsa/yt921x.c:2198:2: warning: variable 'ctrl' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
+ 2198 |         default:
+      |         ^~~~~~~
+../drivers/net/dsa/yt921x.c:2208:2: note: uninitialized use occurs here
+ 2208 |         ctrl |= YT921X_PORT_RX_MAC_EN | YT921X_PORT_TX_MAC_EN;
+      |         ^~~~
+../drivers/net/dsa/yt921x.c:2179:10: note: initialize the variable 'ctrl' to silence this warning
+ 2179 |         u32 ctrl;
+      |                 ^
+      |                  = 0
+../drivers/net/dsa/yt921x.c:2329:3: warning: variable 'ctrl' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
+ 2329 |                 default:
+      |                 ^~~~~~~
+../drivers/net/dsa/yt921x.c:2334:17: note: uninitialized use occurs here
+ 2334 |                                              mask, ctrl);
+      |                                                    ^~~~
+../drivers/net/dsa/yt921x.c:2287:10: note: initialize the variable 'ctrl' to silence this warning
+ 2287 |         u32 ctrl;
+      |                 ^
+      |                  = 0
+2 warnings generated.
Per-file breakdown
--- /tmp/tmp.1grB4hkidm	2025-09-11 23:56:42.044690413 -0700
+++ /tmp/tmp.q1hdMfrzJG	2025-09-11 23:56:42.047690387 -0700
@@ -0,0 +1 @@
+      4 ../drivers/net/dsa/yt921x.c