From: Stefan Metzmacher <metze@samba.org>
Date: Thu, 28 Aug 2025 14:59:00 +0000 (+0200)
Subject: smb: client: make use of smbdirect_frwr_is_supported()
X-Git-Tag: v7.1-rc1~128^2~75
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f9055aa9c8c16c7a9e185e35257dbee3852d42f;p=thirdparty%2Fkernel%2Flinux.git

smb: client: make use of smbdirect_frwr_is_supported()

This an exact copy of frwr_is_supported().

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
---

diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c
index 8fa9621d3f231..ba002060fed0d 100644
--- a/fs/smb/client/smbdirect.c
+++ b/fs/smb/client/smbdirect.c
@@ -922,20 +922,6 @@ out:
 	return ERR_PTR(rc);
 }
 
-/*
- * Test if FRWR (Fast Registration Work Requests) is supported on the device
- * This implementation requires FRWR on RDMA read/write
- * return value: true if it is supported
- */
-static bool frwr_is_supported(struct ib_device_attr *attrs)
-{
-	if (!(attrs->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS))
-		return false;
-	if (attrs->max_fast_reg_page_list_len == 0)
-		return false;
-	return true;
-}
-
 static int smbd_ia_open(
 		struct smbdirect_socket *sc,
 		struct sockaddr *dstaddr, int port)
@@ -953,7 +939,7 @@ static int smbd_ia_open(
 	}
 	sc->ib.dev = sc->rdma.cm_id->device;
 
-	if (!frwr_is_supported(&sc->ib.dev->attrs)) {
+	if (!smbdirect_frwr_is_supported(&sc->ib.dev->attrs)) {
 		log_rdma_event(ERR, "Fast Registration Work Requests (FRWR) is not supported\n");
 		log_rdma_event(ERR, "Device capability flags = %llx max_fast_reg_page_list_len = %u\n",
 			       sc->ib.dev->attrs.device_cap_flags,