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From: Pavel Begunkov <asml.silence@gmail.com>
To: io-uring@vger.kernel.org
Cc: asml.silence@gmail.com, netdev@vger.kernel.org
Subject: [PATCH review-only 06/17] io_uring/zcrx: constify area_reg on import
Date: Sat, 11 Jul 2026 10:11:29 +0100	[thread overview]
Message-ID: <a9f68c5d19cba8243062c5eb15afd0eefede6ade.1783616211.git.asml.silence@gmail.com> (raw)
In-Reply-To: <cover.1783616211.git.asml.silence@gmail.com>

io_import_area() doesn't modify its struct io_uring_zcrx_area_reg
argument, add const to enforce that, it'll make later modifications
easier.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 io_uring/zcrx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c
index cb73dca3c1ee..9f21ae61b862 100644
--- a/io_uring/zcrx.c
+++ b/io_uring/zcrx.c
@@ -136,7 +136,7 @@ static void io_release_dmabuf(struct io_zcrx_mem *mem)
 
 static int io_import_dmabuf(struct io_zcrx_ifq *ifq,
 			    struct io_zcrx_mem *mem,
-			    struct io_uring_zcrx_area_reg *area_reg)
+			    const struct io_uring_zcrx_area_reg *area_reg)
 {
 	unsigned long off = (unsigned long)area_reg->addr;
 	unsigned long len = (unsigned long)area_reg->len;
@@ -208,7 +208,7 @@ static unsigned long io_count_account_pages(struct page **pages, unsigned nr_pag
 
 static int io_import_umem(struct io_zcrx_ifq *ifq,
 			  struct io_zcrx_mem *mem,
-			  struct io_uring_zcrx_area_reg *area_reg)
+			  const struct io_uring_zcrx_area_reg *area_reg)
 {
 	struct page **pages;
 	int nr_pages, ret;
@@ -274,7 +274,7 @@ static void io_release_area_mem(struct io_zcrx_mem *mem)
 
 static int io_import_area(struct io_zcrx_ifq *ifq,
 			  struct io_zcrx_mem *mem,
-			  struct io_uring_zcrx_area_reg *area_reg)
+			  const struct io_uring_zcrx_area_reg *area_reg)
 {
 	int ret;
 
-- 
2.54.0


WARNING: multiple messages have this Message-ID (diff)
From: Pavel Begunkov <asml.silence@gmail.com>
To: io-uring@vger.kernel.org
Cc: asml.silence@gmail.com, netdev@vger.kernel.org
Subject: [PATCH review-only 06/17] io_uring/zcrx: constify area_reg on import
Date: Sat, 11 Jul 2026 11:39:59 +0100	[thread overview]
Message-ID: <a9f68c5d19cba8243062c5eb15afd0eefede6ade.1783616211.git.asml.silence@gmail.com> (raw)
Message-ID: <20260711103959.8gF1y5ZcfK4oR94ZhN3u_TAOKYJDxuCM0aKAM1JQDqw@z> (raw)
In-Reply-To: <cover.1783616211.git.asml.silence@gmail.com>

io_import_area() doesn't modify its struct io_uring_zcrx_area_reg
argument, add const to enforce that, it'll make later modifications
easier.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 io_uring/zcrx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c
index cb73dca3c1ee..9f21ae61b862 100644
--- a/io_uring/zcrx.c
+++ b/io_uring/zcrx.c
@@ -136,7 +136,7 @@ static void io_release_dmabuf(struct io_zcrx_mem *mem)
 
 static int io_import_dmabuf(struct io_zcrx_ifq *ifq,
 			    struct io_zcrx_mem *mem,
-			    struct io_uring_zcrx_area_reg *area_reg)
+			    const struct io_uring_zcrx_area_reg *area_reg)
 {
 	unsigned long off = (unsigned long)area_reg->addr;
 	unsigned long len = (unsigned long)area_reg->len;
@@ -208,7 +208,7 @@ static unsigned long io_count_account_pages(struct page **pages, unsigned nr_pag
 
 static int io_import_umem(struct io_zcrx_ifq *ifq,
 			  struct io_zcrx_mem *mem,
-			  struct io_uring_zcrx_area_reg *area_reg)
+			  const struct io_uring_zcrx_area_reg *area_reg)
 {
 	struct page **pages;
 	int nr_pages, ret;
@@ -274,7 +274,7 @@ static void io_release_area_mem(struct io_zcrx_mem *mem)
 
 static int io_import_area(struct io_zcrx_ifq *ifq,
 			  struct io_zcrx_mem *mem,
-			  struct io_uring_zcrx_area_reg *area_reg)
+			  const struct io_uring_zcrx_area_reg *area_reg)
 {
 	int ret;
 
-- 
2.54.0


  parent reply	other threads:[~2026-07-11  9:12 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-11  9:11 [PATCH review-only 00/17] zcrx RQ improvements and dynamic memory provisioning Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 01/17] io_uring/zcrx: scale refilling with large pages Pavel Begunkov
2026-07-11 10:39   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 02/17] io_uring/zcrx: move RQ head/tail to separate cache lines Pavel Begunkov
2026-07-11 10:39   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 03/17] io_uring/zcrx: add RQ iterator Pavel Begunkov
2026-07-11 10:39   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 04/17] io_uring/zcrx: cache RQ tail Pavel Begunkov
2026-07-11 10:39   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 05/17] io_uring/zcrx: coalesce same-niov RQEs on refill Pavel Begunkov
2026-07-11 10:39   ` Pavel Begunkov
2026-07-11  9:11 ` Pavel Begunkov [this message]
2026-07-11 10:39   ` [PATCH review-only 06/17] io_uring/zcrx: constify area_reg on import Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 07/17] io_uring/zcrx: add helper for deriving area token Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 08/17] io_uring/zcrx: don't pass ifq_reg to area creation Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 09/17] io_uring/zcrx: split dmabuf unmap and release Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 10/17] io_uring/zcrx: unmap under netdev lock Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 11/17] io_uring/zcrx: split append out of area creation Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 12/17] io_uring/zcrx: move freelist lock to struct zcrx Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 13/17] io_uring/zcrx: array of areas Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 14/17] io_uring/zcrx: pass area_id to __zcrx_create_area() Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 15/17] io_uring/zcrx: add dynamic area creation Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11  9:11 ` [PATCH review-only 16/17] io_urint/zcrx: narrow var scope in io_zcrx_recv_skb() Pavel Begunkov
2026-07-11 10:40   ` Pavel Begunkov
2026-07-11 10:39 ` [PATCH review-only 00/17] zcrx RQ improvements and dynamic memory provisioning Pavel Begunkov
2026-07-11 10:39 ` [PATCH RESEND " Pavel Begunkov
2026-07-11 10:40 ` [PATCH review-only 17/17] io_uring/zcrx: don't reload skb_shinfo Pavel Begunkov

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