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-rw-r--r--target/linux/generic/pending-5.4/220-optimize_inlining.patch225
1 files changed, 225 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.4/220-optimize_inlining.patch b/target/linux/generic/pending-5.4/220-optimize_inlining.patch
new file mode 100644
index 0000000000..ae032709d2
--- /dev/null
+++ b/target/linux/generic/pending-5.4/220-optimize_inlining.patch
@@ -0,0 +1,225 @@
+--- a/arch/arm/kernel/atags.h
++++ b/arch/arm/kernel/atags.h
+@@ -5,7 +5,7 @@ void convert_to_tag_list(struct tag *tag
+ const struct machine_desc *setup_machine_tags(phys_addr_t __atags_pointer,
+ unsigned int machine_nr);
+ #else
+-static inline const struct machine_desc *
++static inline const struct machine_desc * __init __noreturn
+ setup_machine_tags(phys_addr_t __atags_pointer, unsigned int machine_nr)
+ {
+ early_print("no ATAGS support: can't continue\n");
+--- a/arch/arm64/include/asm/cpufeature.h
++++ b/arch/arm64/include/asm/cpufeature.h
+@@ -366,7 +366,7 @@ static inline bool cpu_have_feature(unsi
+ }
+
+ /* System capability check for constant caps */
+-static inline bool __cpus_have_const_cap(int num)
++static __always_inline bool __cpus_have_const_cap(int num)
+ {
+ if (num >= ARM64_NCAPS)
+ return false;
+@@ -380,7 +380,7 @@ static inline bool cpus_have_cap(unsigne
+ return test_bit(num, cpu_hwcaps);
+ }
+
+-static inline bool cpus_have_const_cap(int num)
++static __always_inline bool cpus_have_const_cap(int num)
+ {
+ if (static_branch_likely(&arm64_const_caps_ready))
+ return __cpus_have_const_cap(num);
+--- a/arch/mips/include/asm/bitops.h
++++ b/arch/mips/include/asm/bitops.h
+@@ -463,7 +463,7 @@ static inline void __clear_bit_unlock(un
+ * Return the bit position (0..63) of the most significant 1 bit in a word
+ * Returns -1 if no 1 bit exists
+ */
+-static inline unsigned long __fls(unsigned long word)
++static __always_inline unsigned long __fls(unsigned long word)
+ {
+ int num;
+
+@@ -529,7 +529,7 @@ static inline unsigned long __fls(unsign
+ * Returns 0..SZLONG-1
+ * Undefined if no bit exists, so code should check against 0 first.
+ */
+-static inline unsigned long __ffs(unsigned long word)
++static __always_inline unsigned long __ffs(unsigned long word)
+ {
+ return __fls(word & -word);
+ }
+--- a/arch/mips/kernel/cpu-bugs64.c
++++ b/arch/mips/kernel/cpu-bugs64.c
+@@ -42,8 +42,8 @@ static inline void align_mod(const int a
+ : GCC_IMM_ASM() (align), GCC_IMM_ASM() (mod));
+ }
+
+-static inline void mult_sh_align_mod(long *v1, long *v2, long *w,
+- const int align, const int mod)
++static __always_inline void mult_sh_align_mod(long *v1, long *v2, long *w,
++ const int align, const int mod)
+ {
+ unsigned long flags;
+ int m1, m2;
+--- a/arch/powerpc/kernel/prom_init.c
++++ b/arch/powerpc/kernel/prom_init.c
+@@ -498,14 +498,14 @@ static int __init prom_next_node(phandle
+ }
+ }
+
+-static inline int prom_getprop(phandle node, const char *pname,
+- void *value, size_t valuelen)
++static inline int __init prom_getprop(phandle node, const char *pname,
++ void *value, size_t valuelen)
+ {
+ return call_prom("getprop", 4, 1, node, ADDR(pname),
+ (u32)(unsigned long) value, (u32) valuelen);
+ }
+
+-static inline int prom_getproplen(phandle node, const char *pname)
++static inline int __init prom_getproplen(phandle node, const char *pname)
+ {
+ return call_prom("getproplen", 2, 1, node, ADDR(pname));
+ }
+--- a/arch/powerpc/mm/tlb-radix.c
++++ b/arch/powerpc/mm/tlb-radix.c
+@@ -90,8 +90,8 @@ void radix__tlbiel_all(unsigned int acti
+ asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory");
+ }
+
+-static inline void __tlbiel_pid(unsigned long pid, int set,
+- unsigned long ric)
++static __always_inline void __tlbiel_pid(unsigned long pid, int set,
++ unsigned long ric)
+ {
+ unsigned long rb,rs,prs,r;
+
+@@ -106,7 +106,7 @@ static inline void __tlbiel_pid(unsigned
+ trace_tlbie(0, 1, rb, rs, ric, prs, r);
+ }
+
+-static inline void __tlbie_pid(unsigned long pid, unsigned long ric)
++static __always_inline void __tlbie_pid(unsigned long pid, unsigned long ric)
+ {
+ unsigned long rb,rs,prs,r;
+
+@@ -136,7 +136,7 @@ static inline void __tlbiel_lpid(unsigne
+ trace_tlbie(lpid, 1, rb, rs, ric, prs, r);
+ }
+
+-static inline void __tlbie_lpid(unsigned long lpid, unsigned long ric)
++static __always_inline void __tlbie_lpid(unsigned long lpid, unsigned long ric)
+ {
+ unsigned long rb,rs,prs,r;
+
+@@ -300,7 +300,7 @@ static inline void fixup_tlbie_lpid(unsi
+ /*
+ * We use 128 set in radix mode and 256 set in hpt mode.
+ */
+-static inline void _tlbiel_pid(unsigned long pid, unsigned long ric)
++static __always_inline void _tlbiel_pid(unsigned long pid, unsigned long ric)
+ {
+ int set;
+
+@@ -983,7 +983,7 @@ void radix__tlb_flush(struct mmu_gather
+ tlb->need_flush_all = 0;
+ }
+
+-static inline void __radix__flush_tlb_range_psize(struct mm_struct *mm,
++static __always_inline void __radix__flush_tlb_range_psize(struct mm_struct *mm,
+ unsigned long start, unsigned long end,
+ int psize, bool also_pwc)
+ {
+--- a/arch/s390/include/asm/cpacf.h
++++ b/arch/s390/include/asm/cpacf.h
+@@ -202,7 +202,7 @@ static inline int __cpacf_check_opcode(u
+ }
+ }
+
+-static inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask)
++static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask)
+ {
+ if (__cpacf_check_opcode(opcode)) {
+ __cpacf_query(opcode, mask);
+--- a/arch/x86/Kconfig.debug
++++ b/arch/x86/Kconfig.debug
+@@ -276,20 +276,6 @@ config CPA_DEBUG
+ ---help---
+ Do change_page_attr() self-tests every 30 seconds.
+
+-config OPTIMIZE_INLINING
+- bool "Allow gcc to uninline functions marked 'inline'"
+- ---help---
+- This option determines if the kernel forces gcc to inline the functions
+- developers have marked 'inline'. Doing so takes away freedom from gcc to
+- do what it thinks is best, which is desirable for the gcc 3.x series of
+- compilers. The gcc 4.x series have a rewritten inlining algorithm and
+- enabling this option will generate a smaller kernel there. Hopefully
+- this algorithm is so good that allowing gcc 4.x and above to make the
+- decision will become the default in the future. Until then this option
+- is there to test gcc for this.
+-
+- If unsure, say N.
+-
+ config DEBUG_ENTRY
+ bool "Debug low-level entry code"
+ depends on DEBUG_KERNEL
+--- a/drivers/mtd/nand/raw/vf610_nfc.c
++++ b/drivers/mtd/nand/raw/vf610_nfc.c
+@@ -373,7 +373,7 @@ static int vf610_nfc_cmd(struct nand_chi
+ {
+ const struct nand_op_instr *instr;
+ struct vf610_nfc *nfc = chip_to_nfc(chip);
+- int op_id = -1, trfr_sz = 0, offset;
++ int op_id = -1, trfr_sz = 0, offset = 0;
+ u32 col = 0, row = 0, cmd1 = 0, cmd2 = 0, code = 0;
+ bool force8bit = false;
+
+--- a/lib/Kconfig.debug
++++ b/lib/Kconfig.debug
+@@ -309,6 +309,20 @@ config HEADERS_CHECK
+ exported to $(INSTALL_HDR_PATH) (usually 'usr/include' in
+ your build tree), to make sure they're suitable.
+
++config OPTIMIZE_INLINING
++ bool "Allow compiler to uninline functions marked 'inline'"
++ help
++ This option determines if the kernel forces gcc to inline the functions
++ developers have marked 'inline'. Doing so takes away freedom from gcc to
++ do what it thinks is best, which is desirable for the gcc 3.x series of
++ compilers. The gcc 4.x series have a rewritten inlining algorithm and
++ enabling this option will generate a smaller kernel there. Hopefully
++ this algorithm is so good that allowing gcc 4.x and above to make the
++ decision will become the default in the future. Until then this option
++ is there to test gcc for this.
++
++ If unsure, say N.
++
+ config DEBUG_SECTION_MISMATCH
+ bool "Enable full Section mismatch analysis"
+ help
+--- a/arch/x86/Kconfig
++++ b/arch/x86/Kconfig
+@@ -306,9 +306,6 @@ config ZONE_DMA32
+ config AUDIT_ARCH
+ def_bool y if X86_64
+
+-config ARCH_SUPPORTS_OPTIMIZED_INLINING
+- def_bool y
+-
+ config ARCH_SUPPORTS_DEBUG_PAGEALLOC
+ def_bool y
+
+--- a/include/linux/compiler_types.h
++++ b/include/linux/compiler_types.h
+@@ -268,8 +268,7 @@ struct ftrace_likely_data {
+ * of extern inline functions at link time.
+ * A lot of inline functions can cause havoc with function tracing.
+ */
+-#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \
+- !defined(CONFIG_OPTIMIZE_INLINING)
++#if !defined(CONFIG_OPTIMIZE_INLINING)
+ #define inline \
+ inline __attribute__((always_inline, unused)) notrace __gnu_inline
+ #else