[v10,1/2] misc: pci_endpoint_test: Remove the "remainder" code

Commit Message

Hans Zhang Jan. 8, 2025, 8:09 a.m. UTC

A BAR size is always a power of two. buf_size = min(SZ_1M, bar_size);
If the BAR size is <= 1MB, there will be 1 iteration, no remainder. If
the BAR size is > 1MB, there will be more than one iteration, but the
size will always be evenly divisible by 1MB, so no remainder.

Signed-off-by: Hans Zhang <[e-mail]>
Suggested-by: Niklas Cassel <[e-mail]>
Reviewed-by: Niklas Cassel <[e-mail]>
---
Changes since v9:
https://lore.kernel.org/linux-pci/[e-mail]

- Remove the remain variable declaration.
---
 drivers/misc/pci_endpoint_test.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

Patch

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index 3aaaf47fa4ee..f78c7540c52c 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -280,7 +280,7 @@  static int pci_endpoint_test_bar_memcmp(struct pci_endpoint_test *test,
 static bool pci_endpoint_test_bar(struct pci_endpoint_test *test,
 				  enum pci_barno barno)
 {
-	int j, bar_size, buf_size, iters, remain;
+	int j, bar_size, buf_size, iters;
 	void *write_buf __free(kfree) = NULL;
 	void *read_buf __free(kfree) = NULL;
 	struct pci_dev *pdev = test->pdev;
@@ -313,12 +313,6 @@  static bool pci_endpoint_test_bar(struct pci_endpoint_test *test,
 						 write_buf, read_buf, buf_size))
 			return false;
 
-	remain = bar_size % buf_size;
-	if (remain)
-		if (pci_endpoint_test_bar_memcmp(test, barno, buf_size * iters,
-						 write_buf, read_buf, remain))
-			return false;
-
 	return true;
 }