Merge tag 'spi-nor/for-5.19' into mtd/next

SPI NOR core changes:
- Read back written SR value to make sure the write was done correctly.
- Introduce a common function for Read ID that manufacturer drivers can
  use to verify the Octal DTR switch worked correctly.
- Add helpers for read/write any register commands so manufacturer
  drivers don't open code it every time.
- Clarify rdsr dummy cycles documentation.
- Add debugfs entry to expose internal flash parameters and state.

SPI NOR manufacturer drivers changes:
- Add support for Winbond W25Q512NW-IM, and Eon EN25QH256A.
- Move spi_nor_write_ear() to Winbond module since only Winbond flashes
  use it.
- Rework Micron and Cypress Octal DTR enable methods to improve
  readability.
- Use the common Read ID function to verify switch to Octal DTR mode for
  Micron and Cypress flashes.
- Skip polling status on volatile register writes for Micron and Cypress
  flashes since the operation is instant.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index c653beb735b8..3fe47a88f47d 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -150,16 +150,18 @@ smb2_check_message(char *buf, unsigned int len, struct TCP_Server_Info *srvr)
 		struct smb2_transform_hdr *thdr =
 			(struct smb2_transform_hdr *)buf;
 		struct cifs_ses *ses = NULL;
+		struct cifs_ses *iter;
 
 		/* decrypt frame now that it is completely read in */
 		spin_lock(&cifs_tcp_ses_lock);
-		list_for_each_entry(ses, &srvr->smb_ses_list, smb_ses_list) {
-			if (ses->Suid == le64_to_cpu(thdr->SessionId))
+		list_for_each_entry(iter, &srvr->smb_ses_list, smb_ses_list) {
+			if (iter->Suid == le64_to_cpu(thdr->SessionId)) {
+				ses = iter;
 				break;
+			}
 		}
 		spin_unlock(&cifs_tcp_ses_lock);
-		if (list_entry_is_head(ses, &srvr->smb_ses_list,
-				       smb_ses_list)) {
+		if (!ses) {
 			cifs_dbg(VFS, "no decryption - session id not found\n");
 			return 1;
 		}