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authorGravatar Jakub Kicinski <kuba@kernel.org> 2023-10-19 13:13:03 -0700
committerGravatar Jakub Kicinski <kuba@kernel.org> 2023-10-19 13:29:01 -0700
commit041c3466f39d7073bbc7fb91c4e5d14170d5eb08 (patch)
treec74b553ca90bf3487afc3b04e874fda81f309a08 /arch/riscv/kernel
parenti40e: Align devlink info versions with ice driver and add docs (diff)
parentMerge tag 'net-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netd... (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. net/mac80211/key.c 02e0e426a2fb ("wifi: mac80211: fix error path key leak") 2a8b665e6bcc ("wifi: mac80211: remove key_mtx") 7d6904bf26b9 ("Merge wireless into wireless-next") https://lore.kernel.org/all/20231012113648.46eea5ec@canb.auug.org.au/ Adjacent changes: drivers/net/ethernet/ti/Kconfig a602ee3176a8 ("net: ethernet: ti: Fix mixed module-builtin object") 98bdeae9502b ("net: cpmac: remove driver to prepare for platform removal") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/riscv/kernel')
-rw-r--r--arch/riscv/kernel/irq.c4
-rw-r--r--arch/riscv/kernel/setup.c13
-rw-r--r--arch/riscv/kernel/signal.c7
-rw-r--r--arch/riscv/kernel/traps.c28
4 files changed, 20 insertions, 32 deletions
diff --git a/arch/riscv/kernel/irq.c b/arch/riscv/kernel/irq.c
index a8efa053c4a5..9cc0a7669271 100644
--- a/arch/riscv/kernel/irq.c
+++ b/arch/riscv/kernel/irq.c
@@ -60,7 +60,7 @@ static void init_irq_stacks(void)
}
#endif /* CONFIG_VMAP_STACK */
-#ifdef CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK
+#ifdef CONFIG_SOFTIRQ_ON_OWN_STACK
void do_softirq_own_stack(void)
{
#ifdef CONFIG_IRQ_STACKS
@@ -92,7 +92,7 @@ void do_softirq_own_stack(void)
#endif
__do_softirq();
}
-#endif /* CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK */
+#endif /* CONFIG_SOFTIRQ_ON_OWN_STACK */
#else
static void init_irq_stacks(void) {}
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index e600aab116a4..aac853ae4eb7 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -173,19 +173,6 @@ static void __init init_resources(void)
if (ret < 0)
goto error;
-#ifdef CONFIG_KEXEC_CORE
- if (crashk_res.start != crashk_res.end) {
- ret = add_resource(&iomem_resource, &crashk_res);
- if (ret < 0)
- goto error;
- }
- if (crashk_low_res.start != crashk_low_res.end) {
- ret = add_resource(&iomem_resource, &crashk_low_res);
- if (ret < 0)
- goto error;
- }
-#endif
-
#ifdef CONFIG_CRASH_DUMP
if (elfcorehdr_size > 0) {
elfcorehdr_res.start = elfcorehdr_addr;
diff --git a/arch/riscv/kernel/signal.c b/arch/riscv/kernel/signal.c
index 180d951d3624..21a4d0e111bc 100644
--- a/arch/riscv/kernel/signal.c
+++ b/arch/riscv/kernel/signal.c
@@ -311,13 +311,6 @@ static inline void __user *get_sigframe(struct ksignal *ksig,
/* Align the stack frame. */
sp &= ~0xfUL;
- /*
- * Fail if the size of the altstack is not large enough for the
- * sigframe construction.
- */
- if (current->sas_ss_size && sp < current->sas_ss_sp)
- return (void __user __force *)-1UL;
-
return (void __user *)sp;
}
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 19807c4d3805..fae8f610d867 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -13,6 +13,8 @@
#include <linux/kdebug.h>
#include <linux/uaccess.h>
#include <linux/kprobes.h>
+#include <linux/uprobes.h>
+#include <asm/uprobes.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/irq.h>
@@ -247,22 +249,28 @@ static inline unsigned long get_break_insn_length(unsigned long pc)
return GET_INSN_LENGTH(insn);
}
+static bool probe_single_step_handler(struct pt_regs *regs)
+{
+ bool user = user_mode(regs);
+
+ return user ? uprobe_single_step_handler(regs) : kprobe_single_step_handler(regs);
+}
+
+static bool probe_breakpoint_handler(struct pt_regs *regs)
+{
+ bool user = user_mode(regs);
+
+ return user ? uprobe_breakpoint_handler(regs) : kprobe_breakpoint_handler(regs);
+}
+
void handle_break(struct pt_regs *regs)
{
-#ifdef CONFIG_KPROBES
- if (kprobe_single_step_handler(regs))
+ if (probe_single_step_handler(regs))
return;
- if (kprobe_breakpoint_handler(regs))
- return;
-#endif
-#ifdef CONFIG_UPROBES
- if (uprobe_single_step_handler(regs))
+ if (probe_breakpoint_handler(regs))
return;
- if (uprobe_breakpoint_handler(regs))
- return;
-#endif
current->thread.bad_cause = regs->cause;
if (user_mode(regs))