linux.git/arch/xtensa, branch v6.6

xtensa: boot/lib: fix function prototypes

2023-09-20T12:03:30+00:00

Add function prototype for gunzip() to the boot library code and make
exit() and zalloc() static.

arch/xtensa/boot/lib/zmem.c:8:6: warning: no previous prototype for 'exit' [-Wmissing-prototypes]
    8 | void exit (void)
arch/xtensa/boot/lib/zmem.c:13:7: warning: no previous prototype for 'zalloc' [-Wmissing-prototypes]
   13 | void *zalloc(unsigned size)
arch/xtensa/boot/lib/zmem.c:35:6: warning: no previous prototype for 'gunzip' [-Wmissing-prototypes]
   35 | void gunzip (void *dst, int dstlen, unsigned char *src, int *lenp)

Fixes: 4bedea945451 ("xtensa: Architecture support for Tensilica Xtensa Part 2")
Fixes: e7d163f76665 ("xtensa: Removed local copy of zlib and fixed O= support")
Suggested-by: Randy Dunlap 
Signed-off-by: Max Filippov

xtensa: umulsidi3: fix conditional expression

2023-09-20T12:03:22+00:00

Even when a variant has one or more of these defines set to 1, the
multiplier code paths are not used. Change the expression so that the
correct code paths are used.

arch/xtensa/lib/umulsidi3.S:44:38: warning: "XCHAL_NO_MUL" is not defined, evaluates to 0 [-Wundef]
   44 | #if defined(__XTENSA_CALL0_ABI__) && XCHAL_NO_MUL
arch/xtensa/lib/umulsidi3.S:145:38: warning: "XCHAL_NO_MUL" is not defined, evaluates to 0 [-Wundef]
  145 | #if defined(__XTENSA_CALL0_ABI__) && XCHAL_NO_MUL
arch/xtensa/lib/umulsidi3.S:159:5: warning: "XCHAL_NO_MUL" is not defined, evaluates to 0 [-Wundef]
  159 | #if XCHAL_NO_MUL

Fixes: 8939c58d68f9 ("xtensa: add __umulsidi3 helper")
Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-16-rdunlap@infradead.org>
Signed-off-by: Max Filippov

xtensa: boot: don't add include-dirs

2023-09-20T12:03:22+00:00

Drop the -I options to prevent build warnings since there
is not boot/include directory:

cc1: warning: arch/xtensa/boot/include: No such file or directory [-Wmissing-include-dirs]

Fixes: 437374e9a950 ("restore arch/{ppc/xtensa}/boot cflags")
Fixes: 4bedea945451 ("xtensa: Architecture support for Tensilica Xtensa Part 2")
Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-15-rdunlap@infradead.org>
Signed-off-by: Max Filippov

xtensa: iss/network: make functions static

2023-09-20T12:03:21+00:00

Make 2 functions static to prevent build warnings:

arch/xtensa/platforms/iss/network.c:204:16: warning: no previous prototype for 'tuntap_protocol' [-Wmissing-prototypes]
  204 | unsigned short tuntap_protocol(struct sk_buff *skb)
arch/xtensa/platforms/iss/network.c:444:6: warning: no previous prototype for 'iss_net_user_timer_expire' [-Wmissing-prototypes]
  444 | void iss_net_user_timer_expire(struct timer_list *unused)

Fixes: 7282bee78798 ("xtensa: Architecture support for Tensilica Xtensa Part 8")
Fixes: d8479a21a98b ("xtensa: Convert timers to use timer_setup()")
Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-14-rdunlap@infradead.org>
Signed-off-by: Max Filippov

xtensa: tlb: include for missing prototype

2023-09-20T12:03:21+00:00

Add the prototype for check_tlb_sanity() to  and use that
header to prevent a build warning:

arch/xtensa/mm/tlb.c:273:6: warning: no previous prototype for 'check_tlb_sanity' [-Wmissing-prototypes]
  273 | void check_tlb_sanity(void)

Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-13-rdunlap@infradead.org>
Signed-off-by: Max Filippov

xtensa: hw_breakpoint: include header for missing prototype

2023-09-20T12:03:21+00:00

Add the prototype for restore_dbreak() to  and use
that header in hw_breakpoint.c to prevent a build warning:

arch/xtensa/kernel/hw_breakpoint.c:263:6: warning: no previous prototype for 'restore_dbreak' [-Wmissing-prototypes]
  263 | void restore_dbreak(void)

Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-12-rdunlap@infradead.org>
Signed-off-by: Max Filippov

xtensa: smp: add headers for missing function prototypes

2023-09-20T12:03:20+00:00

Use  to provide the prototype for secondary_start_kernel().
Use  to provide the prototype for
setup_profiling_timer().

arch/xtensa/kernel/smp.c:119:6: warning: no previous prototype for 'secondary_start_kernel' [-Wmissing-prototypes]
  119 | void secondary_start_kernel(void)
arch/xtensa/kernel/smp.c:461:5: warning: no previous prototype for 'setup_profiling_timer' [-Wmissing-prototypes]
  461 | int setup_profiling_timer(unsigned int multiplier)

Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-11-rdunlap@infradead.org>
Signed-off-by: Max Filippov

xtensa: traps: add for function prototype

2023-09-20T12:03:20+00:00

Use  to provide the prototype for trap_init(), to prevent
a build warning:

arch/xtensa/kernel/traps.c:484:13: warning: no previous prototype for 'trap_init' [-Wmissing-prototypes]
  484 | void __init trap_init(void)

Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-9-rdunlap@infradead.org>
Signed-off-by: Max Filippov

xtensa: stacktrace: include for prototype

2023-09-20T12:03:20+00:00

Use  to prevent a build warning:

arch/xtensa/kernel/stacktrace.c:263:15: warning: no previous prototype for 'return_address' [-Wmissing-prototypes]
  263 | unsigned long return_address(unsigned level)

Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-8-rdunlap@infradead.org>
Signed-off-by: Max Filippov

xtensa: signal: include headers for function prototypes

2023-09-20T12:03:19+00:00

Add  to satisfy the xtensa_rt_sigreturn() prototype
warning.
Add  to satisfy the do_notify_resume() prototype
warning.

arch/xtensa/kernel/signal.c:246:17: warning: no previous prototype for 'xtensa_rt_sigreturn' [-Wmissing-prototypes]
arch/xtensa/kernel/signal.c:525:6: warning: no previous prototype for 'do_notify_resume' [-Wmissing-prototypes]
  525 | void do_notify_resume(struct pt_regs *regs)

Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-7-rdunlap@infradead.org>
Signed-off-by: Max Filippov