<div dir="ltr">in drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c and drivers/gpu/drm/amd/amdgpu/cz_smc.c, there are two functions named cz_write_smc_sram_dword, but these two functions only have the same name, but in fact they are different functions, even their declarations is different.</div><div class="gmail_extra"> <div class="gmail_quote">On 3 September 2016 at 14:11, Edward O'Callaghan <<a href="mailto:funfunctor@folklore1984.net" target="_blank">funfunctor@folklore1984.net</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Reviewed-by: Edward O'Callaghan <<a href="mailto:funfunctor@folklore1984.net">funfunctor@folklore1984.net</a>> Also, I just noticed cz_write_smc_sram_dword() and if I am not mistaken they seems identical in both: drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c and, drivers/gpu/drm/amd/amdgpu/cz_smc.c with a personal preference to the powerplay version I suppose. Similar story with cz_send_msg_to_smc_async() *I think* but the powerplay one uses some insane macro chain that dispatches to some function called smum_wait_for_register_unequal(), quite hard to follow.. Any way, that is out of scope of the patch here. Kind Regards, Edward. <div class="HOEnZb"><div class="h5"> On 09/03/2016 03:57 PM, Baoyou Xie wrote: > We get a few warnings when building kernel with W=1: > drivers/gpu/drm/amd/amdgpu/cz_smc.c:51:5: warning: no previous prototype for 'cz_send_msg_to_smc_async' [-Wmissing-prototypes] > drivers/gpu/drm/amd/amdgpu/cz_smc.c:143:5: warning: no previous prototype for 'cz_write_smc_sram_dword' [-Wmissing-prototypes] > drivers/gpu/drm/amd/amdgpu/iceland_smc.c:124:6: warning: no previous prototype for 'iceland_start_smc' [-Wmissing-prototypes] > drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c:3926:6: warning: no previous prototype for 'gfx_v8_0_rlc_stop' [-Wmissing-prototypes] > drivers/gpu/drm/amd/amdgpu/amdgpu_job.c:94:6: warning: no previous prototype for 'amdgpu_job_free_cb' [-Wmissing-prototypes] > .... > > In fact, these functions are only used in the file in which they are > declared and don't need a declaration, but can be made static. > So this patch marks these functions with 'static'. > > Signed-off-by: Baoyou Xie <<a href="mailto:baoyou.xie@linaro.org">baoyou.xie@linaro.org</a>> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 4 ++-- > drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 +- > drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 2 +- > drivers/gpu/drm/amd/amdgpu/cz_smc.c | 4 ++-- > drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 2 +- > drivers/gpu/drm/amd/amdgpu/iceland_smc.c | 8 ++++---- > 6 files changed, 11 insertions(+), 11 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c > index bc0440f..a831218 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c > @@ -616,7 +616,7 @@ static int amdgpu_cgs_irq_put(struct cgs_device *cgs_device, unsigned src_id, un > return amdgpu_irq_put(adev, adev->irq.sources[src_id], type); > } > > -int amdgpu_cgs_set_clockgating_state(struct cgs_device *cgs_device, > +static int amdgpu_cgs_set_clockgating_state(struct cgs_device *cgs_device, > enum amd_ip_block_type block_type, > enum amd_clockgating_state state) > { > @@ -637,7 +637,7 @@ int amdgpu_cgs_set_clockgating_state(struct cgs_device *cgs_device, > return r; > } > > -int amdgpu_cgs_set_powergating_state(struct cgs_device *cgs_device, > +static int amdgpu_cgs_set_powergating_state(struct cgs_device *cgs_device, > enum amd_ip_block_type block_type, > enum amd_powergating_state state) > { > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > index 0307ff5..f65bdaf 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > @@ -287,7 +287,7 @@ static u64 amdgpu_cs_get_threshold_for_moves(struct amdgpu_device *adev) > return max(bytes_moved_threshold, 1024*1024ull); > } > > -int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p, > +static int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p, > struct list_head *validated) > { > struct amdgpu_bo_list_entry *lobj; > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c > index 6674d40..31bfe3a 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c > @@ -91,7 +91,7 @@ void amdgpu_job_free_resources(struct amdgpu_job *job) > amdgpu_ib_free(job->adev, &job->ibs[i], f); > } > > -void amdgpu_job_free_cb(struct amd_sched_job *s_job) > +static void amdgpu_job_free_cb(struct amd_sched_job *s_job) > { > struct amdgpu_job *job = container_of(s_job, struct amdgpu_job, base); > > diff --git a/drivers/gpu/drm/amd/amdgpu/cz_smc.c b/drivers/gpu/drm/amd/amdgpu/cz_smc.c > index ac7fee7..c80c2e9 100644 > --- a/drivers/gpu/drm/amd/amdgpu/cz_smc.c > +++ b/drivers/gpu/drm/amd/amdgpu/cz_smc.c > @@ -48,7 +48,7 @@ static struct cz_smu_private_data *cz_smu_get_priv(struct amdgpu_device *adev) > return priv; > } > > -int cz_send_msg_to_smc_async(struct amdgpu_device *adev, u16 msg) > +static int cz_send_msg_to_smc_async(struct amdgpu_device *adev, u16 msg) > { > int i; > u32 content = 0, tmp; > @@ -140,7 +140,7 @@ int cz_read_smc_sram_dword(struct amdgpu_device *adev, u32 smc_address, > return 0; > } > > -int cz_write_smc_sram_dword(struct amdgpu_device *adev, u32 smc_address, > +static int cz_write_smc_sram_dword(struct amdgpu_device *adev, u32 smc_address, > u32 value, u32 limit) > { > int ret; > diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c > index bff8668..6997f7c 100644 > --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c > +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c > @@ -3923,7 +3923,7 @@ static void gfx_v8_0_init_pg(struct amdgpu_device *adev) > } > } > > -void gfx_v8_0_rlc_stop(struct amdgpu_device *adev) > +static void gfx_v8_0_rlc_stop(struct amdgpu_device *adev) > { > u32 tmp = RREG32(mmRLC_CNTL); > > diff --git a/drivers/gpu/drm/amd/amdgpu/iceland_smc.c b/drivers/gpu/drm/amd/amdgpu/iceland_smc.c > index 2118399..ef7c27d 100644 > --- a/drivers/gpu/drm/amd/amdgpu/iceland_smc.c > +++ b/drivers/gpu/drm/amd/amdgpu/iceland_smc.c > @@ -121,7 +121,7 @@ out: > return result; > } > > -void iceland_start_smc(struct amdgpu_device *adev) > +static void iceland_start_smc(struct amdgpu_device *adev) > { > uint32_t val = RREG32_SMC(ixSMC_SYSCON_RESET_CNTL); > > @@ -129,7 +129,7 @@ void iceland_start_smc(struct amdgpu_device *adev) > WREG32_SMC(ixSMC_SYSCON_RESET_CNTL, val); > } > > -void iceland_reset_smc(struct amdgpu_device *adev) > +static void iceland_reset_smc(struct amdgpu_device *adev) > { > uint32_t val = RREG32_SMC(ixSMC_SYSCON_RESET_CNTL); > > @@ -145,7 +145,7 @@ static int iceland_program_jump_on_start(struct amdgpu_device *adev) > return 0; > } > > -void iceland_stop_smc_clock(struct amdgpu_device *adev) > +static void iceland_stop_smc_clock(struct amdgpu_device *adev) > { > uint32_t val = RREG32_SMC(ixSMC_SYSCON_CLOCK_CNTL_0); > > @@ -153,7 +153,7 @@ void iceland_stop_smc_clock(struct amdgpu_device *adev) > WREG32_SMC(ixSMC_SYSCON_CLOCK_CNTL_0, val); > } > > -void iceland_start_smc_clock(struct amdgpu_device *adev) > +static void iceland_start_smc_clock(struct amdgpu_device *adev) > { > uint32_t val = RREG32_SMC(ixSMC_SYSCON_CLOCK_CNTL_0); > > </div></div></blockquote></div> </div>