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authorFelix Fietkau <nbd@openwrt.org>2015-03-02 04:42:17 +0000
committerFelix Fietkau <nbd@openwrt.org>2015-03-02 04:42:17 +0000
commit87059ddca3996f988a7d5e51a9c8890ef75a168b (patch)
treef44b9b25427c3476030ee82573cd984c24b7857c /target/linux/generic/patches-3.19/305-mips_module_reloc.patch
parent02d68b34418dd3709d1aa57a06429feac8ada353 (diff)
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kernel: fix the mips module relocation patch for 3.19+
Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44590 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.19/305-mips_module_reloc.patch')
-rw-r--r--target/linux/generic/patches-3.19/305-mips_module_reloc.patch37
1 files changed, 18 insertions, 19 deletions
diff --git a/target/linux/generic/patches-3.19/305-mips_module_reloc.patch b/target/linux/generic/patches-3.19/305-mips_module_reloc.patch
index 2e92916f97..a9f10e1bdc 100644
--- a/target/linux/generic/patches-3.19/305-mips_module_reloc.patch
+++ b/target/linux/generic/patches-3.19/305-mips_module_reloc.patch
@@ -30,7 +30,7 @@
typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
-@@ -43,14 +43,222 @@ struct mips_hi16 {
+@@ -43,14 +43,221 @@ struct mips_hi16 {
static LIST_HEAD(dbe_list);
static DEFINE_SPINLOCK(dbe_lock);
@@ -126,6 +126,10 @@
+
+ split_page(page, order);
+
++ /* mark all pages except for the last one */
++ for (p = page; p + 1 < page + (size >> PAGE_SHIFT); ++p)
++ set_bit(PG_owner_priv_1, &p->flags);
++
+ for (p = page + (size >> PAGE_SHIFT); p < page + (1 << order); ++p)
+ __free_page(p);
+
@@ -133,16 +137,17 @@
+}
+#endif
+
-+static void free_phys(void *ptr, unsigned long size)
++static void free_phys(void *ptr)
+{
+ struct page *page;
-+ struct page *end;
++ bool free;
+
+ page = virt_to_page(ptr);
-+ end = page + (PAGE_ALIGN(size) >> PAGE_SHIFT);
-+
-+ for (; page < end; ++page)
++ do {
++ free = test_and_clear_bit(PG_owner_priv_1, &page->flags);
+ __free_page(page);
++ page++;
++ } while (free);
+}
+
+
@@ -180,18 +185,12 @@
+}
+
+/* Free memory returned from module_alloc */
-+void module_free(struct module *mod, void *module_region)
++void module_memfree(void *module_region)
+{
-+ if (is_phys_addr(module_region)) {
-+ if (mod->module_init == module_region)
-+ free_phys(module_region, mod->init_size);
-+ else if (mod->module_core == module_region)
-+ free_phys(module_region, mod->core_size);
-+ else
-+ BUG();
-+ } else {
++ if (is_phys_addr(module_region))
++ free_phys(module_region);
++ else
+ vfree(module_region);
-+ }
+}
+
+static void *__module_alloc(int size, bool phys)
@@ -254,7 +253,7 @@
int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v)
{
-@@ -64,8 +272,39 @@ static int apply_r_mips_32_rel(struct mo
+@@ -64,8 +271,39 @@ static int apply_r_mips_32_rel(struct mo
return 0;
}
@@ -294,7 +293,7 @@
if (v % 4) {
pr_err("module %s: dangerous R_MIPS_26 REL relocation\n",
me->name);
-@@ -73,14 +312,17 @@ static int apply_r_mips_26_rel(struct mo
+@@ -73,14 +311,17 @@ static int apply_r_mips_26_rel(struct mo
}
if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
@@ -317,7 +316,7 @@
return 0;
}
-@@ -287,11 +529,32 @@ int module_finalize(const Elf_Ehdr *hdr,
+@@ -287,11 +528,32 @@ int module_finalize(const Elf_Ehdr *hdr,
list_add(&me->arch.dbe_list, &dbe_list);
spin_unlock_irq(&dbe_lock);
}