treewide: Use fallthrough pseudo-keyword
Replace the existing /* 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. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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@@ -263,7 +263,7 @@ static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic,
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case 3:
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re_sort_routes(nr_node, 0, 1);
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re_sort_routes(nr_node, 1, 2);
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/* fall through */
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fallthrough;
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case 2:
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re_sort_routes(nr_node, 0, 1);
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case 1:
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@@ -356,7 +356,7 @@ static int nr_del_node(ax25_address *callsign, ax25_address *neighbour, struct n
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switch (i) {
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case 0:
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nr_node->routes[0] = nr_node->routes[1];
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/* fall through */
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fallthrough;
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case 1:
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nr_node->routes[1] = nr_node->routes[2];
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case 2:
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@@ -479,7 +479,7 @@ static int nr_dec_obs(void)
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switch (i) {
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case 0:
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s->routes[0] = s->routes[1];
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/* Fallthrough */
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fallthrough;
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case 1:
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s->routes[1] = s->routes[2];
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case 2:
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@@ -526,7 +526,7 @@ void nr_rt_device_down(struct net_device *dev)
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switch (i) {
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case 0:
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t->routes[0] = t->routes[1];
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/* fall through */
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fallthrough;
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case 1:
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t->routes[1] = t->routes[2];
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case 2:
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