Merge tag 'arc-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:

 - Fix FPU_STATUS update

 - Update my email address

 - Other spellos and fixes

* tag 'arc-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  MAINTAINERS: update Vineet's email address
  ARC: fp: set FPU_STATUS.FWE to enable FPU_STATUS update on context switch
  ARC: Fix CONFIG_STACKDEPOT
  arc: Fix spelling mistake and grammar in Kconfig
  arc: Prefer unsigned int to bare use of unsigned

MAINTAINERS

@@ -17815,7 +17815,7 @@ F:	include/linux/sync_file.h
 F:	include/uapi/linux/sync_file.h
 
 SYNOPSYS ARC ARCHITECTURE
-M:	Vineet Gupta <vgupta@synopsys.com>
+M:	Vineet Gupta <vgupta@kernel.org>
 L:	linux-snps-arc@lists.infradead.org
 S:	Supported
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git

arch/arc/Kconfig

@@ -409,7 +409,7 @@ choice
 	help
 	  Depending on the configuration, CPU can contain DSP registers
 	  (ACC0_GLO, ACC0_GHI, DSP_BFLY0, DSP_CTRL, DSP_FFT_CTRL).
-	  Bellow is options describing how to handle these registers in
+	  Below are options describing how to handle these registers in
 	  interrupt entry / exit and in context switch.
 
 config ARC_DSP_NONE

arch/arc/include/asm/checksum.h

@@ -24,7 +24,7 @@
  */
 static inline __sum16 csum_fold(__wsum s)
 {
-	unsigned r = s << 16 | s >> 16;	/* ror */
+	unsigned int r = s << 16 | s >> 16;	/* ror */
 	s = ~s;
 	s -= r;
 	return s >> 16;

arch/arc/include/asm/perf_event.h

@@ -123,7 +123,7 @@ static const char * const arc_pmu_ev_hw_map[] = {
 #define C(_x)			PERF_COUNT_HW_CACHE_##_x
 #define CACHE_OP_UNSUPPORTED	0xffff
 
-static const unsigned arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
+static const unsigned int arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
 	[C(L1D)] = {
 		[C(OP_READ)] = {
 			[C(RESULT_ACCESS)]	= PERF_COUNT_ARC_LDC,

arch/arc/kernel/fpu.c

@@ -57,23 +57,26 @@ void fpu_save_restore(struct task_struct *prev, struct task_struct *next)
 
 void fpu_init_task(struct pt_regs *regs)
 {
+	const unsigned int fwe = 0x80000000;
+
 	/* default rounding mode */
 	write_aux_reg(ARC_REG_FPU_CTRL, 0x100);
 
-	/* set "Write enable" to allow explicit write to exception flags */
-	write_aux_reg(ARC_REG_FPU_STATUS, 0x80000000);
+	/* Initialize to zero: setting requires FWE be set */
+	write_aux_reg(ARC_REG_FPU_STATUS, fwe);
 }
 
 void fpu_save_restore(struct task_struct *prev, struct task_struct *next)
 {
 	struct arc_fpu *save = &prev->thread.fpu;
 	struct arc_fpu *restore = &next->thread.fpu;
+	const unsigned int fwe = 0x80000000;
 
 	save->ctrl = read_aux_reg(ARC_REG_FPU_CTRL);
 	save->status = read_aux_reg(ARC_REG_FPU_STATUS);
 
 	write_aux_reg(ARC_REG_FPU_CTRL, restore->ctrl);
-	write_aux_reg(ARC_REG_FPU_STATUS, restore->status);
+	write_aux_reg(ARC_REG_FPU_STATUS, (fwe | restore->status));
 }
 
 #endif

arch/arc/kernel/unwind.c

@@ -260,7 +260,7 @@ static void init_unwind_hdr(struct unwind_table *table,
 {
 	const u8 *ptr;
 	unsigned long tableSize = table->size, hdrSize;
-	unsigned n;
+	unsigned int n;
 	const u32 *fde;
 	struct {
 		u8 version;
@@ -462,7 +462,7 @@ static uleb128_t get_uleb128(const u8 **pcur, const u8 *end)
 {
 	const u8 *cur = *pcur;
 	uleb128_t value;
-	unsigned shift;
+	unsigned int shift;
 
 	for (shift = 0, value = 0; cur < end; shift += 7) {
 		if (shift + 7 > 8 * sizeof(value)
@@ -483,7 +483,7 @@ static sleb128_t get_sleb128(const u8 **pcur, const u8 *end)
 {
 	const u8 *cur = *pcur;
 	sleb128_t value;
-	unsigned shift;
+	unsigned int shift;
 
 	for (shift = 0, value = 0; cur < end; shift += 7) {
 		if (shift + 7 > 8 * sizeof(value)
@@ -609,7 +609,7 @@ static unsigned long read_pointer(const u8 **pLoc, const void *end,
 static signed fde_pointer_type(const u32 *cie)
 {
 	const u8 *ptr = (const u8 *)(cie + 2);
-	unsigned version = *ptr;
+	unsigned int version = *ptr;
 
 	if (*++ptr) {
 		const char *aug;
@@ -904,7 +904,7 @@ int arc_unwind(struct unwind_frame_info *frame)
 	const u8 *ptr = NULL, *end = NULL;
 	unsigned long pc = UNW_PC(frame) - frame->call_frame;
 	unsigned long startLoc = 0, endLoc = 0, cfa;
-	unsigned i;
+	unsigned int i;
 	signed ptrType = -1;
 	uleb128_t retAddrReg = 0;
 	const struct unwind_table *table;

arch/arc/kernel/vmlinux.lds.S

@@ -88,6 +88,8 @@ SECTIONS
 		CPUIDLE_TEXT
 		LOCK_TEXT
 		KPROBES_TEXT
+		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		*(.fixup)
 		*(.gnu.warning)
 	}