Merge tag 'fallthrough-pseudo-keyword-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull 'fallthrough' keyword conversion from Gustavo A. R. Silva:
 "A tree-wide patch that replaces tons (2484) of /* fall through */
  comments, and its variants, with the new pseudo-keyword macro
  fallthrough[1]. Also, remove unnecessary fall-through markings when it
  is the case.

  There are currently 1167 intances of this fallthrough pseudo-keyword
  macro in mainline (5.9-rc2), that have been introduced over the last
  couple of development cycles:

    $ git grep -nw 'fallthrough;' | wc -l
    1167

  The global adoption of the fallthrough pseudo-keyword is something
  certain to happen; so, better sooner than later. :) This will also
  save everybody's time and thousands of lines of unnecessarily
  repetitive changelog text.

  After applying this patch on top of 5.9-rc2, we'll have a total of
  3651 instances of this macro:

    $ git grep -nw 'fallthrough;' | wc -l
    3651

  This treewide patch doesn't address ALL fall-through markings in all
  subsystems at once because I have previously sent out patches for some
  of such subsystems separately, and I will follow up on them; however,
  this definitely contributes most of the work needed to replace all the
  fall-through markings with the fallthrough pseudo-keyword macro in the
  whole codebase.

  I have build-tested this patch on 10 different architectures: x86_64,
  i386, arm64, powerpc, s390, sparc64, sh, m68k, powerpc64 and alpha
  (allyesconfig for all of them). This is in linux-next already and
  kernel test robot has also helped me to successfully build-test early
  versions of this patch[2][3][4][5]"

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
[2] https://lore.kernel.org/lkml/5f3cc99a.HgvOW3rH0mD0RmkM%[email protected]/
[3] https://lore.kernel.org/lkml/5f3dd1d2.l1axczH+t4hMBZ63%[email protected]/
[4] https://lore.kernel.org/lkml/5f3e977a.mwYHUIObbR4SHr0B%[email protected]/
[5] https://lore.kernel.org/lkml/5f3f9e1c.qsyb%2FaySkiXNpkO4%[email protected]/

* tag 'fallthrough-pseudo-keyword-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  treewide: Use fallthrough pseudo-keyword

1 files changed, 12 insertions, 12 deletions

diff --git a/fs/afs/vlclient.c b/fs/afs/vlclient.c
index fd82850cd424..dc9327332f06 100644
--- a/fs/afs/vlclient.c
+++ b/fs/afs/vlclient.c
@@ -196,7 +196,7 @@ static int afs_deliver_vl_get_addrs_u(struct afs_call *call)
 
 		/* Extract the returned uuid, uniquifier, nentries and
 		 * blkaddrs size */
-		/* Fall through */
+		fallthrough;
 	case 1:
 		ret = afs_extract_data(call, true);
 		if (ret < 0)
@@ -221,7 +221,7 @@ static int afs_deliver_vl_get_addrs_u(struct afs_call *call)
 		count = min(call->count, 4U);
 		afs_extract_to_buf(call, count * sizeof(__be32));
 
-		/* Fall through - and extract entries */
+		fallthrough;	/* and extract entries */
 	case 2:
 		ret = afs_extract_data(call, call->count > 4);
 		if (ret < 0)
@@ -324,7 +324,7 @@ static int afs_deliver_vl_get_capabilities(struct afs_call *call)
 		afs_extract_to_tmp(call);
 		call->unmarshall++;
 
-		/* Fall through - and extract the capabilities word count */
+		fallthrough;	/* and extract the capabilities word count */
 	case 1:
 		ret = afs_extract_data(call, true);
 		if (ret < 0)
@@ -337,7 +337,7 @@ static int afs_deliver_vl_get_capabilities(struct afs_call *call)
 		call->unmarshall++;
 		afs_extract_discard(call, count * sizeof(__be32));
 
-		/* Fall through - and extract capabilities words */
+		fallthrough;	/* and extract capabilities words */
 	case 2:
 		ret = afs_extract_data(call, false);
 		if (ret < 0)
@@ -436,7 +436,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
 		/* Extract the returned uuid, uniquifier, fsEndpoints count and
 		 * either the first fsEndpoint type or the volEndpoints
 		 * count if there are no fsEndpoints. */
-		/* Fall through */
+		fallthrough;
 	case 1:
 		ret = afs_extract_data(call, true);
 		if (ret < 0)
@@ -475,7 +475,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
 		afs_extract_to_buf(call, size);
 		call->unmarshall = 2;
 
-		/* Fall through - and extract fsEndpoints[] entries */
+		fallthrough;	/* and extract fsEndpoints[] entries */
 	case 2:
 		ret = afs_extract_data(call, true);
 		if (ret < 0)
@@ -526,7 +526,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
 		 * extract the type of the next endpoint when we extract the
 		 * data of the current one, but this is the first...
 		 */
-		/* Fall through */
+		fallthrough;
 	case 3:
 		ret = afs_extract_data(call, true);
 		if (ret < 0)
@@ -552,7 +552,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
 		afs_extract_to_buf(call, size);
 		call->unmarshall = 4;
 
-		/* Fall through - and extract volEndpoints[] entries */
+		fallthrough;	/* and extract volEndpoints[] entries */
 	case 4:
 		ret = afs_extract_data(call, true);
 		if (ret < 0)
@@ -587,7 +587,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
 		afs_extract_discard(call, 0);
 		call->unmarshall = 5;
 
-		/* Fall through - Done */
+		fallthrough;	/* Done */
 	case 5:
 		ret = afs_extract_data(call, false);
 		if (ret < 0)
@@ -663,7 +663,7 @@ static int afs_deliver_yfsvl_get_cell_name(struct afs_call *call)
 		afs_extract_to_tmp(call);
 		call->unmarshall++;
 
-		/* Fall through - and extract the cell name length */
+		fallthrough;	/* and extract the cell name length */
 	case 1:
 		ret = afs_extract_data(call, true);
 		if (ret < 0)
@@ -685,7 +685,7 @@ static int afs_deliver_yfsvl_get_cell_name(struct afs_call *call)
 		afs_extract_begin(call, cell_name, namesz);
 		call->unmarshall++;
 
-		/* Fall through - and extract cell name */
+		fallthrough;	/* and extract cell name */
 	case 2:
 		ret = afs_extract_data(call, true);
 		if (ret < 0)
@@ -694,7 +694,7 @@ static int afs_deliver_yfsvl_get_cell_name(struct afs_call *call)
 		afs_extract_discard(call, call->count2);
 		call->unmarshall++;
 
-		/* Fall through - and extract padding */
+		fallthrough;	/* and extract padding */
 	case 3:
 		ret = afs_extract_data(call, false);
 		if (ret < 0)