[PATCH v2 1/2] sh: cache: remove unused but set variables in sh4_flush_cache_range

[Thorsten Blum <thorsten.blum@linux.dev>]

Remove 'start' and 'end' to avoid two "variable set but not used"
warnings triggered by -Wunused-but-set-variable. Update the function
comment accordingly.

Reviewed-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
Changes in v2:
- Update the comment as suggested by Zi Yan (thanks!)
- v1: https://lore.kernel.org/lkml/20260423145301.245374-4-thorsten.blum@linux.dev/
---
 arch/sh/mm/cache-sh4.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index 83fb34b39ca7..c7635beb4f1f 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -274,8 +274,6 @@ static void sh4_flush_cache_page(void *args)
 /*
  * Write back and invalidate D-caches.
  *
- * START, END: Virtual Address (U0 address)
- *
  * NOTE: We need to flush the _physical_ page entry.
  * Flushing the cache lines for U0 only isn't enough.
  * We need to flush for P1 too, which may contain aliases.
@@ -284,11 +282,8 @@ static void sh4_flush_cache_range(void *args)
 {
 	struct flusher_data *data = args;
 	struct vm_area_struct *vma;
-	unsigned long start, end;
 
 	vma = data->vma;
-	start = data->addr1;
-	end = data->addr2;
 
 	if (cpu_context(smp_processor_id(), vma->vm_mm) == NO_CONTEXT)
 		return;