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authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-12 10:10:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-12 10:10:56 -0700
commitaf9db1d6632b726a2351426ab8f34374f6f38690 (patch)
tree0806bb69870488f53355b3ddf580b07f4c011cb5 /arch/m68k/kernel
parent024fb66772911a361279c03cd1f394b7a8fd3919 (diff)
parent50c5feeea0af99a4401fd54fd72bec1333a496ca (diff)
Merge tag 'm68k-for-v5.10-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven: - Conversion of the Mac IDE driver to a platform driver - Minor cleanups and fixes * tag 'm68k-for-v5.10-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: ide/macide: Convert Mac IDE driver to platform driver m68k: Replace HTTP links with HTTPS ones m68k: mm: Remove superfluous memblock_alloc*() casts m68k: mm: Use PAGE_ALIGNED() helper m68k: Sort selects in main Kconfig m68k: amiga: Clean up Amiga hardware configuration m68k: Revive _TIF_* masks m68k: Correct some typos in comments m68k: Use get_kernel_nofault() in show_registers() zorro: Fix address space collision message with RAM expansion boards m68k: amiga: Fix Denise detection on OCS
Diffstat (limited to 'arch/m68k/kernel')
-rw-r--r--arch/m68k/kernel/head.S16
-rw-r--r--arch/m68k/kernel/traps.c5
2 files changed, 9 insertions, 12 deletions
diff --git a/arch/m68k/kernel/head.S b/arch/m68k/kernel/head.S
index 29de2b3108ea..493c95db0e51 100644
--- a/arch/m68k/kernel/head.S
+++ b/arch/m68k/kernel/head.S
@@ -57,7 +57,7 @@
* Of course, readability is a subjective issue, so it will never be
* argued that that goal was accomplished. It was merely a goal.
* A key way to help make code more readable is to give good
- * documentation. So, the first thing you will find is exaustive
+ * documentation. So, the first thing you will find is exhaustive
* write-ups on the structure of the file, and the features of the
* functional subroutines.
*
@@ -1304,7 +1304,7 @@ L(mmu_fixup_done):
* mmu_engage
*
* This chunk of code performs the gruesome task of engaging the MMU.
- * The reason its gruesome is because when the MMU becomes engaged it
+ * The reason it's gruesome is because when the MMU becomes engaged it
* maps logical addresses to physical addresses. The Program Counter
* register is then passed through the MMU before the next instruction
* is fetched (the instruction following the engage MMU instruction).
@@ -1369,7 +1369,7 @@ L(mmu_fixup_done):
/*
* After this point no new memory is allocated and
* the start of available memory is stored in availmem.
- * (The bootmem allocator requires now the physicall address.)
+ * (The bootmem allocator requires now the physical address.)
*/
movel L(memory_start),availmem
@@ -1547,7 +1547,7 @@ func_return get_bi_record
* seven bits of the logical address (LA) are used as an
* index into the "root table." Each entry in the root
* table has a bit which specifies if it's a valid pointer to a
- * pointer table. Each entry defines a 32KMeg range of memory.
+ * pointer table. Each entry defines a 32Meg range of memory.
* If an entry is invalid then that logical range of 32M is
* invalid and references to that range of memory (when the MMU
* is enabled) will fault. If the entry is valid, then it does
@@ -1584,7 +1584,7 @@ func_return get_bi_record
* bits 17..12 - index into the Page Table
* bits 11..0 - offset into a particular 4K page
*
- * The algorithms which follows do one thing: they abstract
+ * The algorithms which follow do one thing: they abstract
* the MMU hardware. For example, there are three kinds of
* cache settings that are relevant. Either, memory is
* being mapped in which case it is either Kernel Code (or
@@ -2082,7 +2082,7 @@ func_return mmu_map_tt
* mmu_map
*
* This routine will map a range of memory using a pointer
- * table and allocating the pages on the fly from the kernel.
+ * table and allocate the pages on the fly from the kernel.
* The pointer table does not have to be already linked into
* the root table, this routine will do that if necessary.
*
@@ -2528,7 +2528,7 @@ func_start mmu_get_root_table_entry,%d0/%a1
/* Find the start of free memory, get_bi_record does this for us,
* as the bootinfo structure is located directly behind the kernel
- * and and we simply search for the last entry.
+ * we simply search for the last entry.
*/
get_bi_record BI_LAST
addw #PAGESIZE-1,%a0
@@ -2654,7 +2654,7 @@ func_start mmu_get_page_table_entry,%d0/%a1
jne 2f
/* If the page table entry doesn't exist, we allocate a complete new
- * page and use it as one continues big page table which can cover
+ * page and use it as one continuous big page table which can cover
* 4MB of memory, nearly almost all mappings have that alignment.
*/
get_new_page
diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index 546e81935fe8..9e1261462bcc 100644
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -845,7 +845,6 @@ static void show_trace(unsigned long *stack, const char *loglvl)
void show_registers(struct pt_regs *regs)
{
struct frame *fp = (struct frame *)regs;
- mm_segment_t old_fs = get_fs();
u16 c, *cp;
unsigned long addr;
int i;
@@ -918,10 +917,9 @@ void show_registers(struct pt_regs *regs)
show_stack(NULL, (unsigned long *)addr, KERN_INFO);
pr_info("Code:");
- set_fs(KERNEL_DS);
cp = (u16 *)regs->pc;
for (i = -8; i < 16; i++) {
- if (get_user(c, cp + i) && i >= 0) {
+ if (get_kernel_nofault(c, cp + i) && i >= 0) {
pr_cont(" Bad PC value.");
break;
}
@@ -930,7 +928,6 @@ void show_registers(struct pt_regs *regs)
else
pr_cont(" <%04x>", c);
}
- set_fs(old_fs);
pr_cont("\n");
}