diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 722b6eca2e93..23ebe34ff901 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -6275,10 +6275,6 @@ -1: disable all critical trip points in all thermal zones <degrees C>: override all critical trip points

- thermal.nocrt= [HW,ACPI] - Set to disable actions on ACPI thermal zone - critical and hot trip points. - thermal.off= [HW,ACPI] 1: disable ACPI thermal control

diff --git a/Makefile b/Makefile index 2fdd8b40b7e0..062b9694e054 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 6 PATCHLEVEL = 5 -SUBLEVEL = 0 +SUBLEVEL = 1 EXTRAVERSION = NAME = Hurr durr I'ma ninja sloth

diff --git a/arch/arm/kernel/module-plts.c b/arch/arm/kernel/module-plts.c index f5a43fd8c163..da2ee8d6ef1a 100644 --- a/arch/arm/kernel/module-plts.c +++ b/arch/arm/kernel/module-plts.c @@ -251,7 +251,7 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, /* sort by type and symbol index */ sort(rels, numrels, sizeof(Elf32_Rel), cmp_rel, NULL);

- if (strncmp(secstrings + dstsec->sh_name, ".init", 5) != 0) + if (!module_init_layout_section(secstrings + dstsec->sh_name)) core_plts += count_plts(syms, dstsec->sh_addr, rels, numrels, s->sh_info); else diff --git a/arch/arm64/kernel/module-plts.c b/arch/arm64/kernel/module-plts.c index ad02058756b5..bd69a4e7cd60 100644 --- a/arch/arm64/kernel/module-plts.c +++ b/arch/arm64/kernel/module-plts.c @@ -339,7 +339,7 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, if (nents) sort(rels, nents, sizeof(Elf64_Rela), cmp_rela, NULL);

- if (!str_has_prefix(secstrings + dstsec->sh_name, ".init")) + if (!module_init_layout_section(secstrings + dstsec->sh_name)) core_plts += count_plts(syms, rels, numrels, sechdrs[i].sh_info, dstsec); else diff --git a/arch/x86/include/asm/sections.h b/arch/x86/include/asm/sections.h index a6e8373a5170..3fa87e5e11ab 100644 --- a/arch/x86/include/asm/sections.h +++ b/arch/x86/include/asm/sections.h @@ -2,8 +2,6 @@ #ifndef _ASM_X86_SECTIONS_H #define _ASM_X86_SECTIONS_H

-#define arch_is_kernel_initmem_freed arch_is_kernel_initmem_freed - #include <asm-generic/sections.h> #include <asm/extable.h>

@@ -18,20 +16,4 @@ extern char __end_of_kernel_reserve[];

extern unsigned long _brk_start, _brk_end;

-static inline bool arch_is_kernel_initmem_freed(unsigned long addr) -{ - /* - * If _brk_start has not been cleared, brk allocation is incomplete, - * and we can not make assumptions about its use. - */ - if (_brk_start) - return 0; - - /* - * After brk allocation is complete, space between _brk_end and _end - * is available for allocation. - */ - return addr >= _brk_end && addr < (unsigned long)&_end; -} - #endif /* _ASM_X86_SECTIONS_H */ diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index f9f6ebb08fdb..3163a40f02e3 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -82,10 +82,6 @@ static int tzp; module_param(tzp, int, 0444); MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.");

-static int nocrt; -module_param(nocrt, int, 0); -MODULE_PARM_DESC(nocrt, "Set to take no action upon ACPI thermal zone critical trips points."); - static int off; module_param(off, int, 0); MODULE_PARM_DESC(off, "Set to disable ACPI thermal support."); @@ -1094,7 +1090,7 @@ static int thermal_act(const struct dmi_system_id *d) { static int thermal_nocrt(const struct dmi_system_id *d) { pr_notice("%s detected: disabling all critical thermal trip point actions.\n", d->ident); - nocrt = 1; + crt = -1; return 0; } static int thermal_tzp(const struct dmi_system_id *d) { diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index 839247a4f48e..660012997f54 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -199,14 +199,7 @@ struct inet6_cork { u8 tclass; };

-/** - * struct ipv6_pinfo - ipv6 private area - * - * In the struct sock hierarchy (tcp6_sock, upd6_sock, etc) - * this _must_ be the last member, so that inet6_sk_generic - * is able to calculate its offset from the base struct sock - * by using the struct proto->slab_obj_size member. -acme - */ +/* struct ipv6_pinfo - ipv6 private area */ struct ipv6_pinfo { struct in6_addr saddr; struct in6_pktinfo sticky_pktinfo; @@ -306,19 +299,19 @@ struct raw6_sock { __u32 offset; /* checksum offset */ struct icmp6_filter filter; __u32 ip6mr_table; - /* ipv6_pinfo has to be the last member of raw6_sock, see inet6_sk_generic */ + struct ipv6_pinfo inet6; };

struct udp6_sock { struct udp_sock udp; - /* ipv6_pinfo has to be the last member of udp6_sock, see inet6_sk_generic */ + struct ipv6_pinfo inet6; };

struct tcp6_sock { struct tcp_sock tcp; - /* ipv6_pinfo has to be the last member of tcp6_sock, see inet6_sk_generic */ + struct ipv6_pinfo inet6; };

diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h index 03be088fb439..001b2ce83832 100644 --- a/include/linux/moduleloader.h +++ b/include/linux/moduleloader.h @@ -42,6 +42,11 @@ bool module_init_section(const char *name); */ bool module_exit_section(const char *name);

+/* Describes whether within_module_init() will consider this an init section + * or not. This behaviour changes with CONFIG_MODULE_UNLOAD. + */ +bool module_init_layout_section(const char *sname); + /* * Apply the given relocation to the (simplified) ELF. Return -error * or 0. diff --git a/include/net/sock.h b/include/net/sock.h index 690e22139543..e8927f2d47a3 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1340,6 +1340,7 @@ struct proto {

struct kmem_cache *slab; unsigned int obj_size; + unsigned int ipv6_pinfo_offset; slab_flags_t slab_flags; unsigned int useroffset; /* Usercopy region offset */ unsigned int usersize; /* Usercopy region size */ diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c index 016d997131d4..e12d26c10dba 100644 --- a/kernel/kallsyms.c +++ b/kernel/kallsyms.c @@ -188,16 +188,13 @@ static bool cleanup_symbol_name(char *s)

static int compare_symbol_name(const char *name, char *namebuf) { - int ret; - - ret = strcmp(name, namebuf); - if (!ret) - return ret; - - if (cleanup_symbol_name(namebuf) && !strcmp(name, namebuf)) - return 0; - - return ret; + /* The kallsyms_seqs_of_names is sorted based on names after + * cleanup_symbol_name() (see scripts/kallsyms.c) if clang lto is enabled. + * To ensure correct bisection in kallsyms_lookup_names(), do + * cleanup_symbol_name(namebuf) before comparing name and namebuf. + */ + cleanup_symbol_name(namebuf); + return strcmp(name, namebuf); }

static unsigned int get_symbol_seq(int index) diff --git a/kernel/kallsyms_selftest.c b/kernel/kallsyms_selftest.c index a2e3745d15c4..e05ddc33a752 100644 --- a/kernel/kallsyms_selftest.c +++ b/kernel/kallsyms_selftest.c @@ -196,7 +196,7 @@ static bool match_cleanup_name(const char *s, const char *name) if (!IS_ENABLED(CONFIG_LTO_CLANG)) return false;

- p = strchr(s, '.'); + p = strstr(s, ".llvm."); if (!p) return false;

@@ -344,27 +344,6 @@ static int test_kallsyms_basic_function(void) goto failed; }

- /* - * The first '.' may be the initial letter, in which case the - * entire symbol name will be truncated to an empty string in - * cleanup_symbol_name(). Do not test these symbols. - * - * For example: - * cat /proc/kallsyms | awk '{print $3}' | grep -E "^." | head - * .E_read_words - * .E_leading_bytes - * .E_trailing_bytes - * .E_write_words - * .E_copy - * .str.292.llvm.12122243386960820698 - * .str.24.llvm.12122243386960820698 - * .str.29.llvm.12122243386960820698 - * .str.75.llvm.12122243386960820698 - * .str.99.llvm.12122243386960820698 - */ - if (IS_ENABLED(CONFIG_LTO_CLANG) && !namebuf[0]) - continue; - lookup_addr = kallsyms_lookup_name(namebuf);

memset(stat, 0, sizeof(*stat)); diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 111607d91489..e85b5ad3e206 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -819,34 +819,26 @@ static int very_verbose(struct lock_class *class) * Is this the address of a static object: */ #ifdef __KERNEL__ -/* - * Check if an address is part of freed initmem. After initmem is freed, - * memory can be allocated from it, and such allocations would then have - * addresses within the range [_stext, _end]. - */ -#ifndef arch_is_kernel_initmem_freed -static int arch_is_kernel_initmem_freed(unsigned long addr) -{ - if (system_state < SYSTEM_FREEING_INITMEM) - return 0; - - return init_section_contains((void *)addr, 1); -} -#endif - static int static_obj(const void *obj) { - unsigned long start = (unsigned long) &_stext, - end = (unsigned long) &_end, - addr = (unsigned long) obj; + unsigned long addr = (unsigned long) obj;

- if (arch_is_kernel_initmem_freed(addr)) - return 0; + if (is_kernel_core_data(addr)) + return 1; + + /* + * keys are allowed in the __ro_after_init section. + */ + if (is_kernel_rodata(addr)) + return 1;

/* - * static variable? + * in initdata section and used during bootup only? + * NOTE: On some platforms the initdata section is + * outside of the _stext ... _end range. */ - if ((addr >= start) && (addr < end)) + if (system_state < SYSTEM_FREEING_INITMEM && + init_section_contains((void *)addr, 1)) return 1;

/* diff --git a/kernel/module/decompress.c b/kernel/module/decompress.c index 8a5d6d63b06c..87440f714c0c 100644 --- a/kernel/module/decompress.c +++ b/kernel/module/decompress.c @@ -241,7 +241,7 @@ static ssize_t module_zstd_decompress(struct load_info *info, }

wksp_size = zstd_dstream_workspace_bound(header.windowSize); - wksp = kmalloc(wksp_size, GFP_KERNEL); + wksp = vmalloc(wksp_size); if (!wksp) { retval = -ENOMEM; goto out; @@ -284,7 +284,7 @@ static ssize_t module_zstd_decompress(struct load_info *info, retval = new_size;

out: - kfree(wksp); + vfree(wksp); return retval; } #else diff --git a/kernel/module/main.c b/kernel/module/main.c index 59b1d067e528..ff7cc4e29299 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -1484,7 +1484,7 @@ long module_get_offset_and_type(struct module *mod, enum mod_mem_type type, return offset | mask; }

-static bool module_init_layout_section(const char *sname) +bool module_init_layout_section(const char *sname) { #ifndef CONFIG_MODULE_UNLOAD if (module_exit_section(sname)) diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index d29d1163203d..686090bc5945 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1056,6 +1056,7 @@ static struct proto dccp_v6_prot = { .orphan_count = &dccp_orphan_count, .max_header = MAX_DCCP_HEADER, .obj_size = sizeof(struct dccp6_sock), + .ipv6_pinfo_offset = offsetof(struct dccp6_sock, inet6), .slab_flags = SLAB_TYPESAFE_BY_RCU, .rsk_prot = &dccp6_request_sock_ops, .twsk_prot = &dccp6_timewait_sock_ops, diff --git a/net/dccp/ipv6.h b/net/dccp/ipv6.h index 7e4c2a3b322b..c5d14c48def1 100644 --- a/net/dccp/ipv6.h +++ b/net/dccp/ipv6.h @@ -13,10 +13,6 @@

struct dccp6_sock { struct dccp_sock dccp; - /* - * ipv6_pinfo has to be the last member of dccp6_sock, - * see inet6_sk_generic. - */ struct ipv6_pinfo inet6; };

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 5d593ddc0347..9f9c4b838664 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -102,9 +102,9 @@ bool ipv6_mod_enabled(void) } EXPORT_SYMBOL_GPL(ipv6_mod_enabled);

-static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk) +static struct ipv6_pinfo *inet6_sk_generic(struct sock *sk) { - const int offset = sk->sk_prot->obj_size - sizeof(struct ipv6_pinfo); + const int offset = sk->sk_prot->ipv6_pinfo_offset;

return (struct ipv6_pinfo *)(((u8 *)sk) + offset); } diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c index c2c291827a2c..1b2772834972 100644 --- a/net/ipv6/ping.c +++ b/net/ipv6/ping.c @@ -215,6 +215,7 @@ struct proto pingv6_prot = { .get_port = ping_get_port, .put_port = ping_unhash, .obj_size = sizeof(struct raw6_sock), + .ipv6_pinfo_offset = offsetof(struct raw6_sock, inet6), }; EXPORT_SYMBOL_GPL(pingv6_prot);

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 49381f35b623..ea16734f5e1f 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1216,6 +1216,7 @@ struct proto rawv6_prot = { .hash = raw_hash_sk, .unhash = raw_unhash_sk, .obj_size = sizeof(struct raw6_sock), + .ipv6_pinfo_offset = offsetof(struct raw6_sock, inet6), .useroffset = offsetof(struct raw6_sock, filter), .usersize = sizeof_field(struct raw6_sock, filter), .h.raw_hash = &raw_v6_hashinfo, diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 6e86721e1cdb..3a88545a265d 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -2176,6 +2176,7 @@ struct proto tcpv6_prot = { .sysctl_rmem_offset = offsetof(struct net, ipv4.sysctl_tcp_rmem), .max_header = MAX_TCP_HEADER, .obj_size = sizeof(struct tcp6_sock), + .ipv6_pinfo_offset = offsetof(struct tcp6_sock, inet6), .slab_flags = SLAB_TYPESAFE_BY_RCU, .twsk_prot = &tcp6_timewait_sock_ops, .rsk_prot = &tcp6_request_sock_ops, diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index f787e6b8424c..486d893b8e3c 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1802,6 +1802,7 @@ struct proto udpv6_prot = { .sysctl_wmem_offset = offsetof(struct net, ipv4.sysctl_udp_wmem_min), .sysctl_rmem_offset = offsetof(struct net, ipv4.sysctl_udp_rmem_min), .obj_size = sizeof(struct udp6_sock), + .ipv6_pinfo_offset = offsetof(struct udp6_sock, inet6), .h.udp_table = NULL, .diag_destroy = udp_abort, }; diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c index 8e010d07917a..267d491e9707 100644 --- a/net/ipv6/udplite.c +++ b/net/ipv6/udplite.c @@ -67,6 +67,7 @@ struct proto udplitev6_prot = { .sysctl_wmem_offset = offsetof(struct net, ipv4.sysctl_udp_wmem_min), .sysctl_rmem_offset = offsetof(struct net, ipv4.sysctl_udp_rmem_min), .obj_size = sizeof(struct udp6_sock), + .ipv6_pinfo_offset = offsetof(struct udp6_sock, inet6), .h.udp_table = &udplite_table, };

diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index ff78217f0cb1..ed8ebb6f5909 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -36,9 +36,6 @@ struct l2tp_ip6_sock { u32 conn_id; u32 peer_conn_id;

- /* ipv6_pinfo has to be the last member of l2tp_ip6_sock, see - * inet6_sk_generic - */ struct ipv6_pinfo inet6; };

@@ -730,6 +727,7 @@ static struct proto l2tp_ip6_prot = { .hash = l2tp_ip6_hash, .unhash = l2tp_ip6_unhash, .obj_size = sizeof(struct l2tp_ip6_sock), + .ipv6_pinfo_offset = offsetof(struct l2tp_ip6_sock, inet6), };

static const struct proto_ops l2tp_ip6_ops = { diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index d80658547836..0efc52c640b5 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -3987,6 +3987,7 @@ int __init mptcp_proto_v6_init(void) strcpy(mptcp_v6_prot.name, "MPTCPv6"); mptcp_v6_prot.slab = NULL; mptcp_v6_prot.obj_size = sizeof(struct mptcp6_sock); + mptcp_v6_prot.ipv6_pinfo_offset = offsetof(struct mptcp6_sock, np);

err = proto_register(&mptcp_v6_prot, 1); if (err) diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 76f1bce49a8e..423dc400992b 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -9732,6 +9732,7 @@ struct proto sctpv6_prot = { .unhash = sctp_unhash, .no_autobind = true, .obj_size = sizeof(struct sctp6_sock), + .ipv6_pinfo_offset = offsetof(struct sctp6_sock, inet6), .useroffset = offsetof(struct sctp6_sock, sctp.subscribe), .usersize = offsetof(struct sctp6_sock, sctp.initmsg) - offsetof(struct sctp6_sock, sctp.subscribe) +