[kvm-unit-tests PATCH 2/2] x86/desc: Remove unused exception flag

[Yosry Ahmed <yosry@kernel.org>]

exception is set to true in exception_handler() but is never read
because exception recovery redirects regs->rip to
exception_handler_longjmp(). Clang 24 warns on this with
-Wunused-but-set-global:

  lib/x86/desc.c:483:13: error: variable 'exception' set but not used
  [-Werror,-Wunused-but-set-global]

Remove the unused variable.

Fixes: 932ba2d2f530 ("x86: simplify test_for_exception trigger functions")
Co-developed-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Yosry Ahmed <yosry@kernel.org>
---
 lib/x86/desc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/lib/x86/desc.c b/lib/x86/desc.c
index f4cdfbc92c560..b5d4056260a1d 100644
--- a/lib/x86/desc.c
+++ b/lib/x86/desc.c
@@ -480,7 +480,6 @@ void setup_alt_stack(void)
 }
 #endif
 
-static bool exception;
 static jmp_buf *exception_jmpbuf;
 
 static void exception_handler_longjmp(void)
@@ -491,7 +490,6 @@ static void exception_handler_longjmp(void)
 static void exception_handler(struct ex_regs *regs)
 {
 	/* longjmp must happen after iret, so do not do it now.  */
-	exception = true;
 	regs->rip = (unsigned long)&exception_handler_longjmp;
 	regs->cs = read_cs();
 }
-- 
2.56.0.257.gf7497c7d27-goog