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2023-10-06m68k: sun3: Fix signature of sun3_get_model()Geert Uytterhoeven
The mach_get_model() callback takes a "char *", not an "unsigned char *". Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/c635afb4542ab54c3dbd4fa2fbed07a2665a2f4e.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: sun3: Fix context restore in flush_tlb_range()Geert Uytterhoeven
When building with W=1: In file included from arch/m68k/kernel/traps.c:42: arch/m68k/include/asm/tlbflush.h: In function ‘flush_tlb_range’: arch/m68k/include/asm/tlbflush.h:191:28: warning: variable ‘oldctx’ set but not used [-Wunused-but-set-variable] 191 | unsigned char seg, oldctx; | ^~~~~~ Indeed, the old context is saved, but never restored. Fix this by adding the missing call to sun3_put_context(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/ea859b7850e061e0f7fb3fca64d9f8e6d1c0d2ad.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: sun3: Improve Sun3/3x DVMA abstraction in <asm/dvma.h>Geert Uytterhoeven
When building with W=1: arch/m68k/sun3/dvma.c:65:13: warning: no previous prototype for ‘sun3_dvma_init’ [-Wmissing-prototypes] 65 | void __init sun3_dvma_init(void) | ^~~~~~~~~~~~~~ arch/m68k/sun3x/dvma.c:178:6: warning: no previous prototype for ‘dvma_unmap_iommu’ [-Wmissing-prototypes] 179 | void dvma_unmap_iommu(unsigned long baddr, int len) | ^~~~~~~~~~~~~~~~ Fix this by moving the declarations for sun3_dvma_init() and dvma_unmap_iommu() to <asm/dvma.h>. Avoid #ifdefs in callers by providing dummy static inline functions. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/ec93ed1b28b75674ae9a0b42de083a9bb140f0b3.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: sun3/3x: Include <asm/config.h> for config_sun3*()Geert Uytterhoeven
When building with W=1: arch/m68k/sun3/config.c:123:13: warning: no previous prototype for ‘config_sun3’ [-Wmissing-prototypes] 126 | void __init config_sun3(void) | ^~~~~~~~~~~ arch/m68k/sun3x/config.c:42:13: warning: no previous prototype for ‘config_sun3x’ [-Wmissing-prototypes] 42 | void __init config_sun3x(void) | ^~~~~~~~~~~~ Fix this by including <asm/config.h> Fixes: 91d7b75a5888c182 ("m68k: Add asm/config.h") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/b9178e864d6c5e06c177d53bc4cce6d689f94d78.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: q40: Add and use "q40.h"Geert Uytterhoeven
When building with W=1: arch/m68k/q40/q40ints.c:84:13: warning: no previous prototype for ‘q40_init_IRQ’ [-Wmissing-prototypes] 84 | void __init q40_init_IRQ(void) | ^~~~~~~~~~~~ arch/m68k/q40/q40ints.c:112:6: warning: no previous prototype for ‘q40_mksound’ [-Wmissing-prototypes] 112 | void q40_mksound(unsigned int hz, unsigned int ticks) | ^~~~~~~~~~~ arch/m68k/q40/q40ints.c:152:6: warning: no previous prototype for ‘q40_sched_init’ [-Wmissing-prototypes] 152 | void q40_sched_init (void) | ^~~~~~~~~~~~~~ Fix this by introducing a new header file "q40.h" for holding the prototypes of functions implemented in arch/m68k/q40/. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/7f983ce079b176e1e1ac2a7d0c35b36197c5fa6b.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mvme16x: Add and use "mvme16x.h"Geert Uytterhoeven
When building with W=1: arch/m68k/mvme16x/config.c:208:6: warning: no previous prototype for ‘mvme16x_cons_write’ [-Wmissing-prototypes] 208 | void mvme16x_cons_write(struct console *co, const char *str, unsigned count) | ^~~~~~~~~~~~~~~~~~ Fix this by introducing a new header file "mvme16x.h" for holding the prototypes of functions implemented in arch/m68k/mvme16x/. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/6200cc3b26fad215c4524748af04692e38c5ecd2.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mvme16x: Remove unused sink in mvme16x_cons_write()Geert Uytterhoeven
When building with W=1: arch/m68k/mvme16x/config.c: In function ‘mvme16x_cons_write’: arch/m68k/mvme16x/config.c:211:25: warning: variable ‘sink’ set but not used [-Wunused-but-set-variable] 211 | volatile u_char sink; | ^~~~ Fix this by removing the unused variable and assignment. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/22c4d1978f811d7f4495eeb269ce06304717627a.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mvme147: Make mvme147_init_IRQ() staticGeert Uytterhoeven
When building with W=1: arch/m68k/mvme147/config.c:76:13: warning: no previous prototype for ‘mvme147_init_IRQ’ [-Wmissing-prototypes] 76 | void __init mvme147_init_IRQ(void) | ^~~~~~~~~~~~~~~~ Fix this by making mvme147_init_IRQ() static. The function body was moved to arch/m68k/mvme147/config.c in v2.6.18. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/853e29ca81761032c3af132fffbd583b667234a6.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mac: Add and use "mac.h"Geert Uytterhoeven
When building with W=1: arch/m68k/mac/iop.c:235:13: warning: no previous prototype for ‘iop_init’ [-Wmissing-prototypes] 235 | void __init iop_init(void) | ^~~~~~~~ arch/m68k/mac/via.c:112:13: warning: no previous prototype for ‘via_init’ [-Wmissing-prototypes] 111 | void __init via_init(void) | ^~~~~~~~ arch/m68k/mac/via.c:623:13: warning: no previous prototype for ‘via_init_clock’ [-Wmissing-prototypes] 593 | void __init via_init_clock(void) | ^~~~~~~~~~~~~~ arch/m68k/mac/oss.c:37:13: warning: no previous prototype for ‘oss_init’ [-Wmissing-prototypes] 37 | void __init oss_init(void) | ^~~~~~~~ arch/m68k/mac/psc.c:76:13: warning: no previous prototype for ‘psc_init’ [-Wmissing-prototypes] 76 | void __init psc_init(void) | ^~~~~~~~ arch/m68k/mac/baboon.c:25:13: warning: no previous prototype for ‘baboon_init’ [-Wmissing-prototypes] 25 | void __init baboon_init(void) | ^~~~~~~~~~~ arch/m68k/mac/macboing.c:155:6: warning: no previous prototype for ‘mac_mksound’ [-Wmissing-prototypes] 155 | void mac_mksound( unsigned int freq, unsigned int length ) | ^~~~~~~~~~~ arch/m68k/mac/misc.c:608:5: warning: no previous prototype for ‘mac_hwclk’ [-Wmissing-prototypes] 608 | int mac_hwclk(int op, struct rtc_time *t) | ^~~~~~~~~ Fix this by introducing a new header file "mac.h" for holding the prototypes of functions implemented in arch/m68k/mac/. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/d1fe0014a9e472a305333de4fa17f335c93d73af.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mac: Make mac_platform_init() staticGeert Uytterhoeven
When building with W=1: arch/m68k/mac/config.c:961:12: warning: no previous prototype for ‘mac_platform_init’ [-Wmissing-prototypes] 961 | int __init mac_platform_init(void) | ^~~~~~~~~~~~~~~~~ Fix this by making mac_platform_init() static. There was never a user outside arch/m68k/mac/config.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/f5f069f94c369b7de223bb5e1a21837807fde982.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mac: Remove unused yday in unmktime()Geert Uytterhoeven
When building with W=1: arch/m68k/mac/misc.c: In function ‘unmktime’: arch/m68k/mac/misc.c:557:33: warning: variable ‘yday’ set but not used [-Wunused-but-set-variable] 557 | int days, rem, y, wday, yday; | ^~~~ Fix this by removing the unused variable and assignment. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/b25c42eac8beb0862f1b2041e817cb421ec66b4e.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mac: Remove unused sine_data[]Geert Uytterhoeven
When building with W=1: arch/m68k/mac/macboing.c:29:26: warning: ‘sine_data’ defined but not used [-Wunused-const-variable=] 29 | static const signed char sine_data[] = { | ^~~~~~~~~ The predefined sine table was superseded by a table calculated at run-time in v2.2.0. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/75dbc0a141490daf9febfb8cb4a43ae87fbe3352.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: hp300: Include "time.h" for hp300_sched_init()Geert Uytterhoeven
When building with W=1: arch/m68k/hp300/time.c:101:13: warning: no previous prototype for ‘hp300_sched_init’ [-Wmissing-prototypes] 101 | void __init hp300_sched_init(void) | ^~~~~~~~~~~~~~~~ Fix this by including "time.h". Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/630ee35241dc753a30b69adedc2ffa8fc6d551dd.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: bvme6000: Make bvme6000_abort_int() staticGeert Uytterhoeven
When building with W=1: arch/m68k/bvme6000/config.c:133:13: warning: no previous prototype for ‘bvme6000_abort_int’ [-Wmissing-prototypes] 133 | irqreturn_t bvme6000_abort_int (int irq, void *dev_id) | ^~~~~~~~~~~~~~~~~~ Fix this by making bvme6000_abort_int() static. There was never a user outside arch/m68k/bvme6000/config.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/4da40748e1d7d56b73840a1d7ab1cb9c9a59cef2.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: apollo: Add and use "apollo.h"Geert Uytterhoeven
When building with W=1: arch/m68k/apollo/dn_ints.c:43:13: warning: no previous prototype for ‘dn_init_IRQ’ [-Wmissing-prototypes] 43 | void __init dn_init_IRQ(void) | ^~~~~~~~~~~ Fix this by introducing a new header file "apollo.h" for holding the prototypes of functions implemented in arch/m68k/apollo/. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/d78eceb83b8dd1931be1789204898060664e23f6.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: apollo: Replace set but not used variable by READ_ONCE()Geert Uytterhoeven
When building with W=1: arch/m68k/apollo/config.c: In function ‘dn_timer_int’: arch/m68k/apollo/config.c:171:32: warning: variable ‘x’ set but not used [-Wunused-but-set-variable] 149 | volatile unsigned char x; | ^ Fix this by using READ_ONCE(), and removing the variable. As READ_ONCE() casts to volatile internally, remove the existing cast. Deduplicate the remaining casts by introducing an intermediary. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/d0299797d6bf747eca2da998c6c6256485a9f52e.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: apollo: Make local reset, serial, and irq functions staticGeert Uytterhoeven
When building with W=1: arch/m68k/apollo/config.c:132:6: warning: no previous prototype for ‘dn_serial_print’ [-Wmissing-prototypes] 110 | void dn_serial_print (const char *str) | ^~~~~~~~~~~~~~~ arch/m68k/apollo/dn_ints.c:8:14: warning: no previous prototype for ‘apollo_irq_startup’ [-Wmissing-prototypes] 8 | unsigned int apollo_irq_startup(struct irq_data *data) | ^~~~~~~~~~~~~~~~~~ arch/m68k/apollo/dn_ints.c:19:6: warning: no previous prototype for ‘apollo_irq_shutdown’ [-Wmissing-prototypes] 19 | void apollo_irq_shutdown(struct irq_data *data) | ^~~~~~~~~~~~~~~~~~~ arch/m68k/apollo/dn_ints.c:29:6: warning: no previous prototype for ‘apollo_irq_eoi’ [-Wmissing-prototypes] 29 | void apollo_irq_eoi(struct irq_data *data) | ^~~~~~~~~~~~~~ Fix this by making all local functions static. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/d2b3a6785d3e80069fea85921c72cf0b7afb8493.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: apollo: Remove unused debug console functionsGeert Uytterhoeven
When building with W=1: arch/m68k/apollo/config.c:111:5: warning: no previous prototype for ‘dn_serial_console_wait_key’ [-Wmissing-prototypes] 111 | int dn_serial_console_wait_key(struct console *co) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/m68k/apollo/config.c:118:6: warning: no previous prototype for ‘dn_serial_console_write’ [-Wmissing-prototypes] 118 | void dn_serial_console_write (struct console *co, const char *str,unsigned int count) | ^~~~~~~~~~~~~~~~~~~~~~~ arch/m68k/apollo/config.c:238:6: warning: no previous prototype for ‘dn_dummy_waitbut’ [-Wmissing-prototypes] 240 | void dn_dummy_waitbut(void) { | ^~~~~~~~~~~~~~~~ Fix this by removing these unused functions. The last user of dn_serial_console_write() was removed in v2.3.41. The other functions never had any users. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/5da9036914a5c84c20b6af55f1801f0c734a96bb.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: atari: Add and use "atari.h"Geert Uytterhoeven
When building with W=1: arch/m68k/atari/time.c:59:1: warning: no previous prototype for ‘atari_sched_init’ [-Wmissing-prototypes] 59 | atari_sched_init(void) | ^~~~~~~~~~~~~~~~ arch/m68k/atari/time.c:140:5: warning: no previous prototype for ‘atari_mste_hwclk’ [-Wmissing-prototypes] 140 | int atari_mste_hwclk( int op, struct rtc_time *t ) | ^~~~~~~~~~~~~~~~ arch/m68k/atari/time.c:199:5: warning: no previous prototype for ‘atari_tt_hwclk’ [-Wmissing-prototypes] 199 | int atari_tt_hwclk( int op, struct rtc_time *t ) | ^~~~~~~~~~~~~~ arch/m68k/atari/ataints.c:267:13: warning: no previous prototype for ‘atari_init_IRQ’ [-Wmissing-prototypes] 267 | void __init atari_init_IRQ(void) | ^~~~~~~~~~~~~~ arch/m68k/atari/atasound.c:36:6: warning: no previous prototype for ‘atari_microwire_cmd’ [-Wmissing-prototypes] 36 | void atari_microwire_cmd (int cmd) | ^~~~~~~~~~~~~~~~~~~ arch/m68k/atari/atasound.c:53:6: warning: no previous prototype for ‘atari_mksound’ [-Wmissing-prototypes] 53 | void atari_mksound (unsigned int hz, unsigned int ticks) | ^~~~~~~~~~~~~ Fix this by introducing a new header file "atari.h" for holding the prototypes of functions implemented in arch/m68k/atari/. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/336e4a478ccbfd7e3e91cdbd27636947587a23a6.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: atari: Make atari_stram_map_pages() staticGeert Uytterhoeven
When building with W=1: arch/m68k/atari/stram.c:118:12: warning: no previous prototype for ‘atari_stram_map_pages’ [-Wmissing-prototypes] 118 | int __init atari_stram_map_pages(void) | ^~~~~~~~~~~~~~~~~~~~~ Fix this by making atari_stram_map_pages() static. There was never a user outside arch/m68k/atari/stram.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/fa86b6d7e54d96ac52f574ed00f96e339f46990f.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: atari: Make atari_platform_init() staticGeert Uytterhoeven
When building with W=1: arch/m68k/atari/config.c:883:12: warning: no previous prototype for ‘atari_platform_init’ [-Wmissing-prototypes] 883 | int __init atari_platform_init(void) | ^~~~~~~~~~~~~~~~~~~ Fix this by making atari_platform_init() static. There was never a user outside arch/m68k/atari/config.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/417b46ec1945212c0b1fcc8b0f4074bae9a8b0b4.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: atari: Make ikbd_reset() staticGeert Uytterhoeven
When building with W=1: arch/m68k/atari/atakeyb.c:335:6: warning: no previous prototype for ‘ikbd_reset’ [-Wmissing-prototypes] 335 | void ikbd_reset(void) | ^~~~~~~~~~ Fix this by making ikbd_reset() static. There was never a user outside arch/m68k/atari/atakey.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/6babf691fff55f913808ad845e66f60ab00063b2.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: atari: Document data parameter of stdma_try_lock()Geert Uytterhoeven
When building with W=1: arch/m68k/atari/stdma.c:69: warning: Function parameter or member 'data' not described in 'stdma_try_lock' Fix this by documenting the data parameter. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/a69dd3ab0a224e40ce5ce7b30981e2d7a0285a83.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: amiga: Add and use "amiga.h"Geert Uytterhoeven
When building with W=1: arch/m68k/amiga/amisound.c:48:13: warning: no previous prototype for ‘amiga_init_sound’ [-Wmissing-prototypes] 48 | void __init amiga_init_sound(void) | ^~~~~~~~~~~~~~~~ arch/m68k/amiga/amisound.c:71:6: warning: no previous prototype for ‘amiga_mksound’ [-Wmissing-prototypes] 71 | void amiga_mksound( unsigned int hz, unsigned int ticks ) | ^~~~~~~~~~~~~ Fix this by introducing a new header file "amiga.h" for holding the prototypes of functions implemented in arch/m68k/amiga/. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/7e9395e1de1c9a34d16ea40a522057f05bbee400.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: amiga: pcmcia: Replace set but not used variable by READ_ONCE()Geert Uytterhoeven
When building with W=1: arch/m68k/amiga/pcmcia.c: In function ‘pcmcia_reset’: arch/m68k/amiga/pcmcia.c:29:23: warning: variable ‘b’ set but not used [-Wunused-but-set-variable] 29 | unsigned char b; | ^ Fix this by using READ_ONCE(), and removing the variable. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/1436fa6b329c2212aaf020055afbb97e64b6f039.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: emu: Mark version[] __maybe_unusedGeert Uytterhoeven
When building with W=1: arch/m68k/emu/nfeth.c:42:19: warning: ‘version’ defined but not used [-Wunused-const-variable=] 42 | static const char version[] = | ^~~~~~~ Fix this while obeying the wishes of the original copyright holders by marking version[] with __maybe_unused. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/051731639b4c8e296ec4017595051885cc551c23.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: emu: Remove unused vsnprintf() return value in nfprint()Geert Uytterhoeven
When building with W=1: arch/m68k/emu/natfeat.c: In function ‘nfprint’: arch/m68k/emu/natfeat.c:59:13: warning: variable ‘n’ set but not used [-Wunused-but-set-variable] 59 | int n; | ^ As the return value of vsnprintf() is unused, and serves no practical purpose here, fix this by removing the variable. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/a8b6b17ff352cc560d1848a92d171bb0f44ccb27.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mm: Add and use "fault.h"Geert Uytterhoeven
When building with W=1: arch/m68k/mm/fault.c:22:5: warning: no previous prototype for ‘send_fault_sig’ [-Wmissing-prototypes] 22 | int send_fault_sig(struct pt_regs *regs) | ^~~~~~~~~~~~~~ arch/m68k/mm/fault.c:68:5: warning: no previous prototype for ‘do_page_fault’ [-Wmissing-prototypes] 68 | int do_page_fault(struct pt_regs *regs, unsigned long address, | ^~~~~~~~~~~~~ Fix this by introducing a new header file "fault.h" for holding the prototypes of functions implemented in arch/m68k/mm/fault.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/ef004b8cfe4aac892aa0fb7714c2ed81a02a9b89.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mm: Move paging_init() to common <asm/pgtable.h>Geert Uytterhoeven
When building with W=1: arch/m68k/mm/motorola.c:414:13: warning: no previous prototype for ‘paging_init’ [-Wmissing-prototypes] 414 | void __init paging_init(void) | ^~~~~~~~~~~ arch/m68k/mm/sun3mmu.c:36:13: warning: no previous prototype for ‘paging_init’ [-Wmissing-prototypes] 36 | void __init paging_init(void) | ^~~~~~~~~~~ Fix this by consolidating the multiple prototypes into the common <asm/pgtable.h>. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/1b03fde54f205e972e19959b8e335022205d538c.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: mm: Include <asm/hwtest.h> for hwreg_()Geert Uytterhoeven
When building with W=1: arch/m68k/mm/hwtest.c:29:5: warning: no previous prototype for ‘hwreg_present’ [-Wmissing-prototypes] 29 | int hwreg_present(volatile void *regp) | ^~~~~~~~~~~~~ arch/m68k/mm/hwtest.c:62:5: warning: no previous prototype for ‘hwreg_write’ [-Wmissing-prototypes] 62 | int hwreg_write(volatile void *regp, unsigned short val) | ^~~~~~~~~~~ Fix this by including <asm/hwtest.h>. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/fbd87d8e8d1e8cbe7d56941a8a1d7d82b53010d0.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Add and use "vectors.h"Geert Uytterhoeven
When building with W=1: arch/m68k/kernel/vectors.c:52:13: warning: no previous prototype for ‘base_trap_init’ [-Wmissing-prototypes] 52 | void __init base_trap_init(void) | ^~~~~~~~~~~~~~ Fix this by introducing a new header file "vectors.h" for holding the prototypes of functions implemented in arch/m68k/kernel/vectors.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/bd0a2f65bc1681dc45e2b24951bd89f9ddbe2eef.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Add and use "traps.h"Geert Uytterhoeven
When building with W=1: arch/m68k/kernel/traps.c:754:17: warning: no previous prototype for ‘buserr_c’ [-Wmissing-prototypes] 754 | asmlinkage void buserr_c(struct frame *fp) | ^~~~~~~~ arch/m68k/kernel/traps.c:1140:17: warning: no previous prototype for ‘set_esp0’ [-Wmissing-prototypes] 1140 | asmlinkage void set_esp0(unsigned long ssp) | ^~~~~~~~ arch/m68k/kernel/traps.c:1155:17: warning: no previous prototype for ‘fpemu_signal’ [-Wmissing-prototypes] 1155 | asmlinkage void fpemu_signal(int signal, int code, void *addr) | ^~~~~~~~~~~~ arch/m68k/kernel/traps.c:1149:17: warning: no previous prototype for ‘fpsp040_die’ [-Wmissing-prototypes] 1149 | asmlinkage void fpsp040_die(void) | ^~~~~~~~~~~ Fix this by introducing a new header file "traps.h" for holding the prototypes of functions implemented in arch/m68k/kernel/traps.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/652cbbb1c9e339980a86068ebdd0a69362324af8.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Add and use "signal.h"Geert Uytterhoeven
When building with W=1: arch/m68k/kernel/signal.c:756:18: warning: no previous prototype for ‘do_sigreturn’ [-Wmissing-prototypes] 756 | asmlinkage void *do_sigreturn(struct pt_regs *regs, struct switch_stack *sw) | ^~~~~~~~~~~~ arch/m68k/kernel/signal.c:783:18: warning: no previous prototype for ‘do_rt_sigreturn’ [-Wmissing-prototypes] 783 | asmlinkage void *do_rt_sigreturn(struct pt_regs *regs, struct switch_stack *sw) | ^~~~~~~~~~~~~~~ arch/m68k/kernel/signal.c:1112:17: warning: no previous prototype for ‘do_notify_resume’ [-Wmissing-prototypes] 1112 | asmlinkage void do_notify_resume(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~ Fix this by introducing a new header file "signal.h" for holding the prototypes of functions implemented in arch/m68k/kernel/signal.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/25cecda80698829cec18721a9d0f058cc69df0cc.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Add and use "ptrace.h"Geert Uytterhoeven
When building with W=1: arch/m68k/kernel/ptrace.c:275:16: warning: no previous prototype for ‘syscall_trace_enter’ [-Wmissing-prototypes] 275 | asmlinkage int syscall_trace_enter(void) | ^~~~~~~~~~~~~~~~~~~ arch/m68k/kernel/ptrace.c:288:17: warning: no previous prototype for ‘syscall_trace_leave’ [-Wmissing-prototypes] 288 | asmlinkage void syscall_trace_leave(void) | ^~~~~~~~~~~~~~~~~~~ Fix this by introducing a new header file "ptrace.h" for holding the prototypes of functions implemented in arch/m68k/kernel/ptrace.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/b4b3577b2149ebd65c3b3c7acccebc0e7e596f9d.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Add and use "process.h"Geert Uytterhoeven
When building with W=1: arch/m68k/kernel/process.c:115:16: warning: no previous prototype for ‘m68k_clone’ [-Wmissing-prototypes] 115 | asmlinkage int m68k_clone(struct pt_regs *regs) | ^~~~~~~~~~ arch/m68k/kernel/process.c:136:16: warning: no previous prototype for ‘m68k_clone3’ [-Wmissing-prototypes] 136 | asmlinkage int m68k_clone3(struct pt_regs *regs) | ^~~~~~~~~~~ Fix this by introducing a new header file "process.h" for holding the prototypes of functions implemented in arch/m68k/kernel/process.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/5e50257d8fcae3eb202ce5f439dc29c09cb6c44f.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Add and use "ints.h"Geert Uytterhoeven
When building with W=1: arch/m68k/kernel/ints.c:165:17: warning: no previous prototype for ‘handle_badint’ [-Wmissing-prototypes] 165 | asmlinkage void handle_badint(struct pt_regs *regs) | ^~~~~~~~~~~~~ Fix this by introducing a new header file "ints.h" for holding the prototypes of functions implemented in arch/m68k/kernel/ints.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/dc65d01ca4c7de94ce814e5b5e1f726fff97566b.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Add and use <asm/syscalls.h>Geert Uytterhoeven
When building with W=1: arch/m68k/kernel/sys_m68k.c:40:17: warning: no previous prototype for ‘sys_mmap2’ [-Wmissing-prototypes] 40 | asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, | ^~~~~~~~~ arch/m68k/kernel/sys_m68k.c:378:1: warning: no previous prototype for ‘sys_cacheflush’ [-Wmissing-prototypes] 378 | sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) | ^~~~~~~~~~~~~~ arch/m68k/kernel/sys_m68k.c:463:1: warning: no previous prototype for ‘sys_atomic_cmpxchg_32’ [-Wmissing-prototypes] 463 | sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, | ^~~~~~~~~~~~~~~~~~~~~ arch/m68k/kernel/sys_m68k.c:564:16: warning: no previous prototype for ‘sys_getpagesize’ [-Wmissing-prototypes] 564 | asmlinkage int sys_getpagesize(void) | ^~~~~~~~~~~~~~~ arch/m68k/kernel/sys_m68k.c:569:26: warning: no previous prototype for ‘sys_get_thread_area’ [-Wmissing-prototypes] 569 | asmlinkage unsigned long sys_get_thread_area(void) | ^~~~~~~~~~~~~~~~~~~ arch/m68k/kernel/sys_m68k.c:574:16: warning: no previous prototype for ‘sys_set_thread_area’ [-Wmissing-prototypes] 574 | asmlinkage int sys_set_thread_area(unsigned long tp) | ^~~~~~~~~~~~~~~~~~~ arch/m68k/kernel/sys_m68k.c:580:16: warning: no previous prototype for ‘sys_atomic_barrier’ [-Wmissing-prototypes] 580 | asmlinkage int sys_atomic_barrier(void) | ^~~~~~~~~~~~~~~~~~ Fix this by introducing a new header file <asm/syscalls.h> for holding the prototypes for m68k-specific syscalls, and including the generic ones. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/80b721eeb499562cd5d49887b0eee10dd172c88d.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Make bad_super_trap() staticGeert Uytterhoeven
When building with W=1: arch/m68k/kernel/traps.c:968:6: warning: no previous prototype for ‘bad_super_trap’ [-Wmissing-prototypes] 968 | void bad_super_trap (struct frame *fp) | ^~~~~~~~~~~~~~ Fix this by making bad_super_trap() static. There was never a user outside arch/m68k/kernel/traps.c. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/1e0b67a355d7e1bcb40811eced41d3080e8f4d20.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Include <linux/cpu.h> for trap_init()Geert Uytterhoeven
When building with W=1: arch/m68k/kernel/vectors.c:74:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes] 74 | void __init trap_init (void) | ^~~~~~~~~ Fix this by including <linux/cpu.h>. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/42e7055fab50deda1f7cd648982e90b7ab28fdc3.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: kernel: Add missing asmlinkage to do_notify_resume()Geert Uytterhoeven
do_notify_resume() is called from assembly code, so it should be marked asmlinkage for documentation purposes. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/e24d63ec4332316e859125caa8d07c0589603cfd.1694613528.git.geert@linux-m68k.org
2023-10-06m68k: Use kernel's generic libgcc functionsGreg Ungerer
The arch/m68k/lib versions of the libgcc functions: ashldi3, ashrdi3 and lshrdi3 were taken directly from an older version of gcc. We can use the kernel's own generic lib versions of these - they are virtually identical. Switch to those and remove the m68k local ones. Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20230913071350.1939818-1-gerg@kernel.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2023-10-06m68k: emu: Replace strlcpy() with strscpy()Azeem Shaikh
strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated [1]. In an effort to remove strlcpy() completely [2], replace strlcpy() here with strscpy(). Direct replacement is safe here since return value of -errno is used to check for truncation instead of sizeof(dest). [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [2] https://github.com/KSPP/linux/issues/89 Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20230830185428.4109426-1-azeemshaikh38@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2023-10-06m68k: math-emu: Add missing prototypesGeert Uytterhoeven
When building with W=1: arch/m68k/math-emu/fp_arith.c:301:16: warning: no previous prototype for ‘fp_fsglmul’ [-Wmissing-prototypes] 301 | struct fp_ext *fp_fsglmul(struct fp_ext *dest, struct fp_ext *src) | ^~~~~~~~~~ arch/m68k/math-emu/fp_arith.c:357:16: warning: no previous prototype for ‘fp_fsgldiv’ [-Wmissing-prototypes] 357 | struct fp_ext *fp_fsgldiv(struct fp_ext *dest, struct fp_ext *src) | ^~~~~~~~~~ CC arch/m68k/math-emu/fp_log.o ... Fix this by adding the missing prototypes to header files. Reported-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230810141947.1236730-17-arnd@kernel.org/ Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/96c039640d76973ea762d79018de0bc75bbdc1dc.1692283195.git.geert@linux-m68k.org
2023-10-06m68k: math-emu: Reformat function and variable headersGeert Uytterhoeven
Make the code shorter and easier to read. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/11506b9225e281f2453a83a02ac4793d0e58b609.1692283195.git.geert@linux-m68k.org
2023-10-06m68k: math-emu: Replace external declarations by header inclusionGeert Uytterhoeven
Replace the (incorrect) external declarations by an inclusion of the appropriate header file. Semantically, the "src" parameters of the various fp_*() functions are constant. However, they cannot actually be const as most of these functions perform a normalization step first. As the fp_one constant passed to fp_add() is already normalized, it is safe to cast away its constness when making the function call. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/163bc2f64b5a3dd7b96a12aaca6733b408ddc880.1692283195.git.geert@linux-m68k.org
2023-10-06m68k: math-emu: Make multi_arith.h self-containedGeert Uytterhoeven
Add the missing #include "fp_emu.h". Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/2efd6610e97dd1621e7d28bf87cb79173285545d.1692283195.git.geert@linux-m68k.org
2023-10-06m68k: math-emu: Sanitize include guardsGeert Uytterhoeven
Some include guards start with an underscore, others don't. Some comments do not match the actual include guard. Make them uniform, adhering to the "FP_<FOO>_H" format. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/8c84c8bf06c0c1e463c47f071891e2e83d5abdd2.1692283195.git.geert@linux-m68k.org
2023-10-06m68k: math-emu: Fix incorrect file reference in fp_log.cGeert Uytterhoeven
The file comment header refers to the wrong file. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/faf2244c3c80a4d70da5a18dd2a170a15b3ebd88.1692283195.git.geert@linux-m68k.org
2023-10-03syscalls: Cleanup references to sys_lookup_dcookie()Sohil Mehta
commit 'be65de6b03aa ("fs: Remove dcookies support")' removed the syscall definition for lookup_dcookie. However, syscall tables still point to the old sys_lookup_dcookie() definition. Update syscall tables of all architectures to directly point to sys_ni_syscall() instead. Signed-off-by: Sohil Mehta <sohil.mehta@intel.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Namhyung Kim <namhyung@kernel.org> # for perf Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-09-21futex: Add sys_futex_requeue()peterz@infradead.org
Finish off the 'simple' futex2 syscall group by adding sys_futex_requeue(). Unlike sys_futex_{wait,wake}() its arguments are too numerous to fit into a regular syscall. As such, use struct futex_waitv to pass the 'source' and 'destination' futexes to the syscall. This syscall implements what was previously known as FUTEX_CMP_REQUEUE and uses {val, uaddr, flags} for source and {uaddr, flags} for destination. This design explicitly allows requeueing between different types of futex by having a different flags word per uaddr. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20230921105248.511860556@noisy.programming.kicks-ass.net