kernel: split patches folder up into backport, pending and hack folders
* properly format/comment all patches * merge debloat patches * merge Kconfig patches * merge swconfig patches * merge hotplug patches * drop 200-fix_localversion.patch - upstream * drop 222-arm_zimage_none.patch - unused * drop 252-mv_cesa_depends.patch - no longer required * drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused * drop 661-fq_codel_keep_dropped_stats.patch - outdated * drop 702-phy_add_aneg_done_function.patch - upstream * drop 840-rtc7301.patch - unused * drop 841-rtc_pt7c4338.patch - upstream * drop 921-use_preinit_as_init.patch - unused * drop spio-gpio-old and gpio-mmc - unused Signed-off-by: John Crispin <john@phrozen.org>
This commit is contained in:
		@@ -0,0 +1,101 @@
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--- a/drivers/mtd/mtdpart.c
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+++ b/drivers/mtd/mtdpart.c
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@@ -446,14 +446,12 @@ static struct mtd_part *allocate_partiti
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 	if (slave->offset == MTDPART_OFS_APPEND)
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 		slave->offset = cur_offset;
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 	if (slave->offset == MTDPART_OFS_NXTBLK) {
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-		slave->offset = cur_offset;
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-		if (mtd_mod_by_eb(cur_offset, master) != 0) {
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-			/* Round up to next erasesize */
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-			slave->offset = (mtd_div_by_eb(cur_offset, master) + 1) * master->erasesize;
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+		/* Round up to next erasesize */
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+		slave->offset = mtd_roundup_to_eb(cur_offset, master);
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+		if (slave->offset != cur_offset)
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 			printk(KERN_NOTICE "Moving partition %d: "
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 			       "0x%012llx -> 0x%012llx\n", partno,
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 			       (unsigned long long)cur_offset, (unsigned long long)slave->offset);
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-		}
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 	}
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 	if (slave->offset == MTDPART_OFS_RETAIN) {
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 		slave->offset = cur_offset;
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@@ -673,6 +671,17 @@ run_parsers_by_type(struct mtd_part *sla
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 	return nr_parts;
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 }
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+static inline unsigned long
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+mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len)
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+{
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+	unsigned long mask = mtd->erasesize - 1;
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+
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+	len += offset & mask;
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+	len = (len + mask) & ~mask;
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+	len -= offset & mask;
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+	return len;
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+}
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+
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 #ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
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 #define SPLIT_FIRMWARE_NAME	CONFIG_MTD_SPLIT_FIRMWARE_NAME
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 #else
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@@ -956,6 +965,24 @@ int mtd_is_partition(const struct mtd_in
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 }
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 EXPORT_SYMBOL_GPL(mtd_is_partition);
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+struct mtd_info *mtdpart_get_master(const struct mtd_info *mtd)
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+{
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+	if (!mtd_is_partition(mtd))
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+		return (struct mtd_info *)mtd;
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+
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+	return PART(mtd)->master;
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+}
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+EXPORT_SYMBOL_GPL(mtdpart_get_master);
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+
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+uint64_t mtdpart_get_offset(const struct mtd_info *mtd)
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+{
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+	if (!mtd_is_partition(mtd))
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+		return 0;
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+
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+	return PART(mtd)->offset;
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+}
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+EXPORT_SYMBOL_GPL(mtdpart_get_offset);
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+
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 /* Returns the size of the entire flash chip */
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 uint64_t mtd_get_device_size(const struct mtd_info *mtd)
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 {
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--- a/include/linux/mtd/partitions.h
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+++ b/include/linux/mtd/partitions.h
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@@ -90,6 +90,8 @@ int mtd_is_partition(const struct mtd_in
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 int mtd_add_partition(struct mtd_info *master, const char *name,
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 		      long long offset, long long length);
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 int mtd_del_partition(struct mtd_info *master, int partno);
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+struct mtd_info *mtdpart_get_master(const struct mtd_info *mtd);
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+uint64_t mtdpart_get_offset(const struct mtd_info *mtd);
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 uint64_t mtd_get_device_size(const struct mtd_info *mtd);
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 extern void __weak arch_split_mtd_part(struct mtd_info *master,
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 				       const char *name, int offset, int size);
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--- a/include/linux/mtd/mtd.h
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+++ b/include/linux/mtd/mtd.h
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@@ -333,6 +333,24 @@ static inline uint32_t mtd_mod_by_eb(uin
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 	return do_div(sz, mtd->erasesize);
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 }
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+static inline uint64_t mtd_roundup_to_eb(uint64_t sz, struct mtd_info *mtd)
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+{
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+	if (mtd_mod_by_eb(sz, mtd) == 0)
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+		return sz;
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+
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+	/* Round up to next erase block */
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+	return (mtd_div_by_eb(sz, mtd) + 1) * mtd->erasesize;
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+}
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+
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+static inline uint64_t mtd_rounddown_to_eb(uint64_t sz, struct mtd_info *mtd)
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+{
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+	if (mtd_mod_by_eb(sz, mtd) == 0)
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+		return sz;
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+
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+	/* Round down to the start of the current erase block */
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+	return (mtd_div_by_eb(sz, mtd)) * mtd->erasesize;
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+}
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+
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 static inline uint32_t mtd_div_by_ws(uint64_t sz, struct mtd_info *mtd)
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 {
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 	if (mtd->writesize_shift)
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