From c7c4ae35d6e9b53e2c66da7d6eadc9d77d64ed60 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Fri, 9 Nov 2018 14:57:45 +0100 Subject: [PATCH] kernel: deprecate support for the generic "linux,part-probe" DT binding MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit It has been rejected upstream and instead a nice/more generic solution has been implemented. It's possible now to describe partitions format using "compatible" DT string. No OpenWrt target uses "linux,part-probe" anymore, leave it only in case some forks need it. It will be dropped with support for new kernels. Signed-off-by: Rafał Miłecki --- ...-generic-parsing-of-linux-part-probe.patch | 23 ++++++++++++++----- ...for-different-partition-parser-types.patch | 2 +- .../404-mtd-add-more-helper-functions.patch | 2 +- 3 files changed, 19 insertions(+), 8 deletions(-) diff --git a/target/linux/generic/pending-4.14/161-mtd-part-add-generic-parsing-of-linux-part-probe.patch b/target/linux/generic/pending-4.14/161-mtd-part-add-generic-parsing-of-linux-part-probe.patch index 80ff556a49d..8e5ecec63a7 100644 --- a/target/linux/generic/pending-4.14/161-mtd-part-add-generic-parsing-of-linux-part-probe.patch +++ b/target/linux/generic/pending-4.14/161-mtd-part-add-generic-parsing-of-linux-part-probe.patch @@ -6,6 +6,12 @@ physmap_of.c to mtdpart.c. Now all drivers can use this feature by just providing a reference to their device tree node in struct mtd_part_parser_data. +THIS METHOD HAS BEEN DEPRECATED + +Linux supports "compatible" property in the "partitions" subnode now. It +should be used to specify partitions format (and trigger proper parser +usage) if needed. + Signed-off-by: Hauke Mehrtens --- Documentation/devicetree/bindings/mtd/nand.txt | 16 +++++++++ @@ -104,10 +110,13 @@ Signed-off-by: Hauke Mehrtens #include #include -@@ -835,6 +836,32 @@ void deregister_mtd_parser(struct mtd_pa +@@ -834,6 +835,37 @@ void deregister_mtd_parser(struct mtd_pa + } EXPORT_SYMBOL_GPL(deregister_mtd_parser); - /* ++#include ++ ++/* + * Parses the linux,part-probe device tree property. + * When a non null value is returned it has to be freed with kfree() by + * the caller. @@ -130,14 +139,16 @@ Signed-off-by: Hauke Mehrtens + if (count < 0) + return NULL; + ++ pr_warn("Support for the generic \"linux,part-probe\" has been deprecated and will be removed soon"); ++ BUILD_BUG_ON(LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0)); ++ + return res; +} + -+/* + /* * Do not forget to update 'parse_mtd_partitions()' kerneldoc comment if you * are changing this array! - */ -@@ -983,6 +1010,13 @@ int parse_mtd_partitions(struct mtd_info +@@ -983,6 +1015,13 @@ int parse_mtd_partitions(struct mtd_info struct mtd_partitions pparts = { }; struct mtd_part_parser *parser; int ret, err = 0; @@ -151,7 +162,7 @@ Signed-off-by: Hauke Mehrtens if (!types) types = mtd_is_partition(master) ? default_subpartition_types : -@@ -1024,6 +1058,7 @@ int parse_mtd_partitions(struct mtd_info +@@ -1024,6 +1063,7 @@ int parse_mtd_partitions(struct mtd_info if (ret < 0 && !err) err = ret; } diff --git a/target/linux/generic/pending-4.14/401-mtd-add-support-for-different-partition-parser-types.patch b/target/linux/generic/pending-4.14/401-mtd-add-support-for-different-partition-parser-types.patch index 503a86e24ef..a683db359fd 100644 --- a/target/linux/generic/pending-4.14/401-mtd-add-support-for-different-partition-parser-types.patch +++ b/target/linux/generic/pending-4.14/401-mtd-add-support-for-different-partition-parser-types.patch @@ -9,7 +9,7 @@ Signed-off-by: Gabor Juhos --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c -@@ -1113,6 +1113,62 @@ void mtd_part_parser_cleanup(struct mtd_ +@@ -1118,6 +1118,62 @@ void mtd_part_parser_cleanup(struct mtd_ } } diff --git a/target/linux/generic/pending-4.14/404-mtd-add-more-helper-functions.patch b/target/linux/generic/pending-4.14/404-mtd-add-more-helper-functions.patch index 5df24dff091..523ff531adf 100644 --- a/target/linux/generic/pending-4.14/404-mtd-add-more-helper-functions.patch +++ b/target/linux/generic/pending-4.14/404-mtd-add-more-helper-functions.patch @@ -29,7 +29,7 @@ Signed-off-by: Gabor Juhos #ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME #define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME #else -@@ -1223,6 +1234,24 @@ int mtd_is_partition(const struct mtd_in +@@ -1228,6 +1239,24 @@ int mtd_is_partition(const struct mtd_in } EXPORT_SYMBOL_GPL(mtd_is_partition); -- 2.30.2