When building for 32-bit platforms:
In file included from include/linux/bits.h:6,
from include/linux/bitops.h:6,
from include/linux/kernel.h:23,
from io_uring/io_uring.c:42:
include/vdso/bits.h:7:40: warning: left shift count >= width of type [-Wshift-count-overflow]
7 | #define BIT(nr) (UL(1) << (nr))
| ^~
include/linux/io_uring_types.h:538:35: note: in expansion of macro ‘BIT’
538 | REQ_F_CAN_POLL = BIT(REQ_F_CAN_POLL_BIT),
| ^~~
include/vdso/bits.h:7:40: warning: left shift count >= width of type [-Wshift-count-overflow]
7 | #define BIT(nr) (UL(1) << (nr))
| ^~
include/linux/io_uring_types.h:540:35: note: in expansion of macro ‘BIT’
540 | REQ_F_CANCEL_SEQ = BIT(REQ_F_CANCEL_SEQ_BIT),
| ^~~
The io_kiocb.flags variable was expanded to 64 bits, but none of the
existing or newly-added flag definitions were updated, causing build
issues on 32-bit platforms, where unsigned long is a 32-bit value.
Fix this by switching all flag definitions from BIT() (32 or 64 bits) to
BIT_ULL() (always 64 bits).
Fixes: e247b2bea90786fb ("io_uring: expand main struct io_kiocb flags to 64-bits")
Fixes: d964e844044278bf ("io_uring: add io_file_can_poll() helper")
Fixes: 3bdfba1b2a1fc23a ("io_uring/cancel: don't default to setting req->work.cancel_seq")
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
Boot-tested on arm32 and arm64.
---
include/linux/io_uring_types.h | 66 +++++++++++++++++-----------------
1 file changed, 33 insertions(+), 33 deletions(-)
diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h
index 431e099bb2c07682..f99330b177171003 100644
--- a/include/linux/io_uring_types.h
+++ b/include/linux/io_uring_types.h
@@ -472,72 +472,72 @@ enum {
enum {
/* ctx owns file */
- REQ_F_FIXED_FILE = BIT(REQ_F_FIXED_FILE_BIT),
+ REQ_F_FIXED_FILE = BIT_ULL(REQ_F_FIXED_FILE_BIT),
/* drain existing IO first */
- REQ_F_IO_DRAIN = BIT(REQ_F_IO_DRAIN_BIT),
+ REQ_F_IO_DRAIN = BIT_ULL(REQ_F_IO_DRAIN_BIT),
/* linked sqes */
- REQ_F_LINK = BIT(REQ_F_LINK_BIT),
+ REQ_F_LINK = BIT_ULL(REQ_F_LINK_BIT),
/* doesn't sever on completion < 0 */
- REQ_F_HARDLINK = BIT(REQ_F_HARDLINK_BIT),
+ REQ_F_HARDLINK = BIT_ULL(REQ_F_HARDLINK_BIT),
/* IOSQE_ASYNC */
- REQ_F_FORCE_ASYNC = BIT(REQ_F_FORCE_ASYNC_BIT),
+ REQ_F_FORCE_ASYNC = BIT_ULL(REQ_F_FORCE_ASYNC_BIT),
/* IOSQE_BUFFER_SELECT */
- REQ_F_BUFFER_SELECT = BIT(REQ_F_BUFFER_SELECT_BIT),
+ REQ_F_BUFFER_SELECT = BIT_ULL(REQ_F_BUFFER_SELECT_BIT),
/* IOSQE_CQE_SKIP_SUCCESS */
- REQ_F_CQE_SKIP = BIT(REQ_F_CQE_SKIP_BIT),
+ REQ_F_CQE_SKIP = BIT_ULL(REQ_F_CQE_SKIP_BIT),
/* fail rest of links */
- REQ_F_FAIL = BIT(REQ_F_FAIL_BIT),
+ REQ_F_FAIL = BIT_ULL(REQ_F_FAIL_BIT),
/* on inflight list, should be cancelled and waited on exit reliably */
- REQ_F_INFLIGHT = BIT(REQ_F_INFLIGHT_BIT),
+ REQ_F_INFLIGHT = BIT_ULL(REQ_F_INFLIGHT_BIT),
/* read/write uses file position */
- REQ_F_CUR_POS = BIT(REQ_F_CUR_POS_BIT),
+ REQ_F_CUR_POS = BIT_ULL(REQ_F_CUR_POS_BIT),
/* must not punt to workers */
- REQ_F_NOWAIT = BIT(REQ_F_NOWAIT_BIT),
+ REQ_F_NOWAIT = BIT_ULL(REQ_F_NOWAIT_BIT),
/* has or had linked timeout */
- REQ_F_LINK_TIMEOUT = BIT(REQ_F_LINK_TIMEOUT_BIT),
+ REQ_F_LINK_TIMEOUT = BIT_ULL(REQ_F_LINK_TIMEOUT_BIT),
/* needs cleanup */
- REQ_F_NEED_CLEANUP = BIT(REQ_F_NEED_CLEANUP_BIT),
+ REQ_F_NEED_CLEANUP = BIT_ULL(REQ_F_NEED_CLEANUP_BIT),
/* already went through poll handler */
- REQ_F_POLLED = BIT(REQ_F_POLLED_BIT),
+ REQ_F_POLLED = BIT_ULL(REQ_F_POLLED_BIT),
/* buffer already selected */
- REQ_F_BUFFER_SELECTED = BIT(REQ_F_BUFFER_SELECTED_BIT),
+ REQ_F_BUFFER_SELECTED = BIT_ULL(REQ_F_BUFFER_SELECTED_BIT),
/* buffer selected from ring, needs commit */
- REQ_F_BUFFER_RING = BIT(REQ_F_BUFFER_RING_BIT),
+ REQ_F_BUFFER_RING = BIT_ULL(REQ_F_BUFFER_RING_BIT),
/* caller should reissue async */
- REQ_F_REISSUE = BIT(REQ_F_REISSUE_BIT),
+ REQ_F_REISSUE = BIT_ULL(REQ_F_REISSUE_BIT),
/* supports async reads/writes */
- REQ_F_SUPPORT_NOWAIT = BIT(REQ_F_SUPPORT_NOWAIT_BIT),
+ REQ_F_SUPPORT_NOWAIT = BIT_ULL(REQ_F_SUPPORT_NOWAIT_BIT),
/* regular file */
- REQ_F_ISREG = BIT(REQ_F_ISREG_BIT),
+ REQ_F_ISREG = BIT_ULL(REQ_F_ISREG_BIT),
/* has creds assigned */
- REQ_F_CREDS = BIT(REQ_F_CREDS_BIT),
+ REQ_F_CREDS = BIT_ULL(REQ_F_CREDS_BIT),
/* skip refcounting if not set */
- REQ_F_REFCOUNT = BIT(REQ_F_REFCOUNT_BIT),
+ REQ_F_REFCOUNT = BIT_ULL(REQ_F_REFCOUNT_BIT),
/* there is a linked timeout that has to be armed */
- REQ_F_ARM_LTIMEOUT = BIT(REQ_F_ARM_LTIMEOUT_BIT),
+ REQ_F_ARM_LTIMEOUT = BIT_ULL(REQ_F_ARM_LTIMEOUT_BIT),
/* ->async_data allocated */
- REQ_F_ASYNC_DATA = BIT(REQ_F_ASYNC_DATA_BIT),
+ REQ_F_ASYNC_DATA = BIT_ULL(REQ_F_ASYNC_DATA_BIT),
/* don't post CQEs while failing linked requests */
- REQ_F_SKIP_LINK_CQES = BIT(REQ_F_SKIP_LINK_CQES_BIT),
+ REQ_F_SKIP_LINK_CQES = BIT_ULL(REQ_F_SKIP_LINK_CQES_BIT),
/* single poll may be active */
- REQ_F_SINGLE_POLL = BIT(REQ_F_SINGLE_POLL_BIT),
+ REQ_F_SINGLE_POLL = BIT_ULL(REQ_F_SINGLE_POLL_BIT),
/* double poll may active */
- REQ_F_DOUBLE_POLL = BIT(REQ_F_DOUBLE_POLL_BIT),
+ REQ_F_DOUBLE_POLL = BIT_ULL(REQ_F_DOUBLE_POLL_BIT),
/* request has already done partial IO */
- REQ_F_PARTIAL_IO = BIT(REQ_F_PARTIAL_IO_BIT),
+ REQ_F_PARTIAL_IO = BIT_ULL(REQ_F_PARTIAL_IO_BIT),
/* fast poll multishot mode */
- REQ_F_APOLL_MULTISHOT = BIT(REQ_F_APOLL_MULTISHOT_BIT),
+ REQ_F_APOLL_MULTISHOT = BIT_ULL(REQ_F_APOLL_MULTISHOT_BIT),
/* recvmsg special flag, clear EPOLLIN */
- REQ_F_CLEAR_POLLIN = BIT(REQ_F_CLEAR_POLLIN_BIT),
+ REQ_F_CLEAR_POLLIN = BIT_ULL(REQ_F_CLEAR_POLLIN_BIT),
/* hashed into ->cancel_hash_locked, protected by ->uring_lock */
- REQ_F_HASH_LOCKED = BIT(REQ_F_HASH_LOCKED_BIT),
+ REQ_F_HASH_LOCKED = BIT_ULL(REQ_F_HASH_LOCKED_BIT),
/* don't use lazy poll wake for this request */
- REQ_F_POLL_NO_LAZY = BIT(REQ_F_POLL_NO_LAZY_BIT),
+ REQ_F_POLL_NO_LAZY = BIT_ULL(REQ_F_POLL_NO_LAZY_BIT),
/* file is pollable */
- REQ_F_CAN_POLL = BIT(REQ_F_CAN_POLL_BIT),
+ REQ_F_CAN_POLL = BIT_ULL(REQ_F_CAN_POLL_BIT),
/* cancel sequence is set and valid */
- REQ_F_CANCEL_SEQ = BIT(REQ_F_CANCEL_SEQ_BIT),
+ REQ_F_CANCEL_SEQ = BIT_ULL(REQ_F_CANCEL_SEQ_BIT),
};
typedef void (*io_req_tw_func_t)(struct io_kiocb *req, struct io_tw_state *ts);
--
2.34.1
