Messages in this thread | | | Subject | Re: [PATCH v4 1/7] fpga-mgr: wrap the write_init() op | From | Tom Rix <> | Date | Mon, 28 Jun 2021 14:03:04 -0700 |
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On 6/28/21 11:53 AM, Moritz Fischer wrote: > On Fri, Jun 25, 2021 at 12:51:42PM -0700, trix@redhat.com wrote: >> From: Tom Rix <trix@redhat.com> >> >> An FPGA manager should not be required to provide a >> write_init() op if there is nothing for it do. >> So add a wrapper and move the op checking. >> Default to success. >> >> Signed-off-by: Tom Rix <trix@redhat.com> >> --- >> drivers/fpga/fpga-mgr.c | 15 ++++++++++++--- >> 1 file changed, 12 insertions(+), 3 deletions(-) >> >> diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c >> index ecb4c3c795fa5..c047de8a059b7 100644 >> --- a/drivers/fpga/fpga-mgr.c >> +++ b/drivers/fpga/fpga-mgr.c >> @@ -25,6 +25,15 @@ struct fpga_mgr_devres { >> struct fpga_manager *mgr; >> }; >> >> +static inline int fpga_mgr_write_init(struct fpga_manager *mgr, >> + struct fpga_image_info *info, >> + const char *buf, size_t count) >> +{ >> + if (mgr->mops->write_init) > Will you need a if (mgr->mops && mgr->mops->write_init) here later?
This was changed from v3 based on Yilun's comment
https://lore.kernel.org/linux-fpga/20210624075414.GA44700@yilunxu-OptiPlex-7050/
This is checked on creation
>> + return mgr->mops->write_init(mgr, info, buf, count); >> + return 0; >> +} >> + >> /** >> * fpga_image_info_alloc - Allocate an FPGA image info struct >> * @dev: owning device >> @@ -83,9 +92,9 @@ static int fpga_mgr_write_init_buf(struct fpga_manager *mgr, >> >> mgr->state = FPGA_MGR_STATE_WRITE_INIT; >> if (!mgr->mops->initial_header_size) >> - ret = mgr->mops->write_init(mgr, info, NULL, 0); >> + ret = fpga_mgr_write_init(mgr, info, NULL, 0); >> else >> - ret = mgr->mops->write_init( >> + ret = fpga_mgr_write_init( >> mgr, info, buf, min(mgr->mops->initial_header_size, count)); >> >> if (ret) { >> @@ -569,7 +578,7 @@ struct fpga_manager *fpga_mgr_create(struct device *parent, const char *name, >> int id, ret; >> >> if (!mops || !mops->write_complete || !mops->state || >> - !mops->write_init || (!mops->write && !mops->write_sg) || >> + (!mops->write && !mops->write_sg) || >> (mops->write && mops->write_sg)) { >> dev_err(parent, "Attempt to register without fpga_manager_ops\n"); >> return NULL; >> -- >> 2.26.3 >> > Looks good to me, I might reword the commit message some when applying.
That is fine.
Thanks
Tom
> - Moritz >
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