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* [PATCH v2] io_uring: fix bug of wrong BUILD_BUG_ON check of __REQ_F_LAST_BIT
@ 2021-09-07  3:22 Hao Xu
  2021-09-10 11:50 ` Hao Xu
  2021-09-10 12:26 ` Jens Axboe
  0 siblings, 2 replies; 3+ messages in thread
From: Hao Xu @ 2021-09-07  3:22 UTC (permalink / raw)
  To: Jens Axboe; +Cc: io-uring, Pavel Begunkov, Joseph Qi

Build check of __REQ_F_LAST_BIT should be large than not equal or large
than.

Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
---
 fs/io_uring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 2bde732a1183..d159d9204e07 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -10643,7 +10643,7 @@ static int __init io_uring_init(void)
 	BUILD_BUG_ON(SQE_VALID_FLAGS >= (1 << 8));
 
 	BUILD_BUG_ON(ARRAY_SIZE(io_op_defs) != IORING_OP_LAST);
-	BUILD_BUG_ON(__REQ_F_LAST_BIT >= 8 * sizeof(int));
+	BUILD_BUG_ON(__REQ_F_LAST_BIT > 8 * sizeof(int));
 
 	req_cachep = KMEM_CACHE(io_kiocb, SLAB_HWCACHE_ALIGN | SLAB_PANIC |
 				SLAB_ACCOUNT);
-- 
2.24.4


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2021-09-07  3:22 [PATCH v2] io_uring: fix bug of wrong BUILD_BUG_ON check of __REQ_F_LAST_BIT Hao Xu
2021-09-10 11:50 ` Hao Xu
2021-09-10 12:26 ` Jens Axboe

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