7 files changed, 30 insertions, 24 deletions

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 525bff667a52..30816037036e 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -24,10 +24,6 @@ depfile = $(subst $(comma),_,$(dot-target).d)
 basetarget = $(basename $(notdir $@))
 
 ###
-# filename of first prerequisite with directory and extension stripped
-baseprereq = $(basename $(notdir $<))
-
-###
 # Escape single quote for use in echo statements
 escsq = $(subst $(squote),'\$(squote)',$1)
 
diff --git a/scripts/coccinelle/api/alloc/alloc_cast.cocci b/scripts/coccinelle/api/alloc/alloc_cast.cocci
index 408ee3879f9b..18fedf7c60ed 100644
--- a/scripts/coccinelle/api/alloc/alloc_cast.cocci
+++ b/scripts/coccinelle/api/alloc/alloc_cast.cocci
@@ -32,7 +32,7 @@ type T;
   (T *)
   \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
    kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\|vmalloc\|vzalloc\|
-   dma_alloc_coherent\|dma_zalloc_coherent\|devm_kmalloc\|devm_kzalloc\|
+   dma_alloc_coherent\|devm_kmalloc\|devm_kzalloc\|
    kvmalloc\|kvzalloc\|kvmalloc_node\|kvzalloc_node\|pci_alloc_consistent\|
    pci_zalloc_consistent\|kmem_alloc\|kmem_zalloc\|kmem_zone_alloc\|
    kmem_zone_zalloc\|vmalloc_node\|vzalloc_node\)(...)
@@ -55,7 +55,7 @@ type r1.T;
 * (T *)
   \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
    kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\|vmalloc\|vzalloc\|
-   dma_alloc_coherent\|dma_zalloc_coherent\|devm_kmalloc\|devm_kzalloc\|
+   dma_alloc_coherent\|devm_kmalloc\|devm_kzalloc\|
    kvmalloc\|kvzalloc\|kvmalloc_node\|kvzalloc_node\|pci_alloc_consistent\|
    pci_zalloc_consistent\|kmem_alloc\|kmem_zalloc\|kmem_zone_alloc\|
    kmem_zone_zalloc\|vmalloc_node\|vzalloc_node\)(...)
@@ -78,7 +78,7 @@ type r1.T;
 - (T *)
   \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
    kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\|vmalloc\|vzalloc\|
-   dma_alloc_coherent\|dma_zalloc_coherent\|devm_kmalloc\|devm_kzalloc\|
+   dma_alloc_coherent\|devm_kmalloc\|devm_kzalloc\|
    kvmalloc\|kvzalloc\|kvmalloc_node\|kvzalloc_node\|pci_alloc_consistent\|
    pci_zalloc_consistent\|kmem_alloc\|kmem_zalloc\|kmem_zone_alloc\|
    kmem_zone_zalloc\|vmalloc_node\|vzalloc_node\)(...)
@@ -95,7 +95,7 @@ position p;
  (T@p *)
   \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
    kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\|vmalloc\|vzalloc\|
-   dma_alloc_coherent\|dma_zalloc_coherent\|devm_kmalloc\|devm_kzalloc\|
+   dma_alloc_coherent\|devm_kmalloc\|devm_kzalloc\|
    kvmalloc\|kvzalloc\|kvmalloc_node\|kvzalloc_node\|pci_alloc_consistent\|
    pci_zalloc_consistent\|kmem_alloc\|kmem_zalloc\|kmem_zone_alloc\|
    kmem_zone_zalloc\|vmalloc_node\|vzalloc_node\)(...)
diff --git a/scripts/coccinelle/api/alloc/zalloc-simple.cocci b/scripts/coccinelle/api/alloc/zalloc-simple.cocci
index d819275b7fde..5cd1991c582e 100644
--- a/scripts/coccinelle/api/alloc/zalloc-simple.cocci
+++ b/scripts/coccinelle/api/alloc/zalloc-simple.cocci
@@ -69,15 +69,6 @@ statement S;
 - x = (T)vmalloc(E1);
 + x = (T)vzalloc(E1);
 |
-- x = dma_alloc_coherent(E2,E1,E3,E4);
-+ x = dma_zalloc_coherent(E2,E1,E3,E4);
-|
-- x = (T *)dma_alloc_coherent(E2,E1,E3,E4);
-+ x = dma_zalloc_coherent(E2,E1,E3,E4);
-|
-- x = (T)dma_alloc_coherent(E2,E1,E3,E4);
-+ x = (T)dma_zalloc_coherent(E2,E1,E3,E4);
-|
 - x = kmalloc_node(E1,E2,E3);
 + x = kzalloc_node(E1,E2,E3);
 |
@@ -225,7 +216,7 @@ p << r2.p;
 x << r2.x;
 @@
 
-msg="WARNING: dma_zalloc_coherent should be used for %s, instead of dma_alloc_coherent/memset" % (x)
+msg="WARNING: dma_alloc_coherent use in %s already zeroes out memory,  so memset is not needed" % (x)
 coccilib.report.print_report(p[0], msg)
 
 //-----------------------------------------------------------------
diff --git a/scripts/gcc-plugins/arm_ssp_per_task_plugin.c b/scripts/gcc-plugins/arm_ssp_per_task_plugin.c
index de70b8470971..89c47f57d1ce 100644
--- a/scripts/gcc-plugins/arm_ssp_per_task_plugin.c
+++ b/scripts/gcc-plugins/arm_ssp_per_task_plugin.c
@@ -13,7 +13,7 @@ static unsigned int arm_pertask_ssp_rtl_execute(void)
         for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) {
                 const char *sym;
                 rtx body;
-                rtx masked_sp;
+                rtx mask, masked_sp;
 
                 /*
                  * Find a SET insn involving a SYMBOL_REF to __stack_chk_guard
@@ -33,12 +33,13 @@ static unsigned int arm_pertask_ssp_rtl_execute(void)
                  * produces the address of the copy of the stack canary value
                  * stored in struct thread_info
                  */
+                mask = GEN_INT(sext_hwi(sp_mask, GET_MODE_PRECISION(Pmode)));
                 masked_sp = gen_reg_rtx(Pmode);
 
                 emit_insn_before(gen_rtx_SET(masked_sp,
                                              gen_rtx_AND(Pmode,
                                                          stack_pointer_rtx,
-                                                         GEN_INT(sp_mask))),
+                                                         mask)),
                                  insn);
 
                 SET_SRC(body) = gen_rtx_PLUS(Pmode, masked_sp,
@@ -52,6 +53,19 @@ static unsigned int arm_pertask_ssp_rtl_execute(void)
 #define NO_GATE
 #include "gcc-generate-rtl-pass.h"
 
+#if BUILDING_GCC_VERSION >= 9000
+static bool no(void)
+{
+        return false;
+}
+
+static void arm_pertask_ssp_start_unit(void *gcc_data, void *user_data)
+{
+        targetm.have_stack_protect_combined_set = no;
+        targetm.have_stack_protect_combined_test = no;
+}
+#endif
+
 __visible int plugin_init(struct plugin_name_args *plugin_info,
                           struct plugin_gcc_version *version)
 {
@@ -99,5 +113,10 @@ __visible int plugin_init(struct plugin_name_args *plugin_info,
         register_callback(plugin_info->base_name, PLUGIN_PASS_MANAGER_SETUP,
                           NULL, &arm_pertask_ssp_rtl_pass_info);
 
+#if BUILDING_GCC_VERSION >= 9000
+        register_callback(plugin_info->base_name, PLUGIN_START_UNIT,
+                          arm_pertask_ssp_start_unit, NULL);
+#endif
+
         return 0;
 }
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 77cebad0474e..f75e7bda4889 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -118,8 +118,8 @@ static int read_symbol(FILE *in, struct sym_entry *s)
                         fprintf(stderr, "Read error or end of file.\n");
                 return -1;
         }
-        if (strlen(sym) > KSYM_NAME_LEN) {
-                fprintf(stderr, "Symbol %s too long for kallsyms (%zu vs %d).\n"
+        if (strlen(sym) >= KSYM_NAME_LEN) {
+                fprintf(stderr, "Symbol %s too long for kallsyms (%zu >= %d).\n"
                                 "Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
                         sym, strlen(sym), KSYM_NAME_LEN);
                 return -1;
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index c05ab001b54c..181973509a05 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -206,4 +206,4 @@ filechk_conf_cfg = $(CONFIG_SHELL) $<
 $(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE
         $(call filechk,conf_cfg)
 
-clean-files += conf-cfg
+clean-files += *conf-cfg
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 0de2fb236640..26bf886bd168 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -2185,7 +2185,7 @@ static void add_intree_flag(struct buffer *b, int is_intree)
 /* Cannot check for assembler */
 static void add_retpoline(struct buffer *b)
 {
-        buf_printf(b, "\n#ifdef RETPOLINE\n");
+        buf_printf(b, "\n#ifdef CONFIG_RETPOLINE\n");
         buf_printf(b, "MODULE_INFO(retpoline, \"Y\");\n");
         buf_printf(b, "#endif\n");
 }