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scsi: ufs: Use conftest for suspend differences

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In Linux v5.19, the arguments to the 'suspend' function pointer defined
in the structure 'ufs_hba_variant_ops' was updated to add a 'status'
argument. Add a new test to the conftest script that checks if the
'suspend' function has a 'status' argument and use the definition
created by conftest to select which structure member is used.

This is beneficial for working with 3rd party Linux kernels that may
have back-ported upstream changes into their kernel and so the kernel
version checks do not work.

Bug 4221847

Change-Id: I05011a4a1aff7c54cd258147d6519b696904a2de
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2996214
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Jon Hunter
2023-10-12 13:23:38 +01:00
committed by mobile promotions
parent 54e01347ea
commit f748f0ef72
3 changed files with 33 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
scripts/conftest/Makefile
View File

@@ -146,6 +146,7 @@ NV_CONFTEST_FUNCTION_COMPILE_TESTS += tc_taprio_qopt_offload_struct_has_cmd
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra_dev_iommu_get_stream_id
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra_ivc_struct_has_iosys_map
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tty_operations_struct_write_has_u8_ptr_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufs_hba_variant_ops_suspend_has_status_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_async_connection_struct_present
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_async_match_type_enum_present
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_async_subdev_nf_init
@@ -181,7 +182,8 @@ NV_HEADER_PRESENCE_TESTS = \
linux/iosys-map.h \
net/gso.h \
net/page_pool.h \
soc/tegra/tegra-prod.h
soc/tegra/tegra-prod.h \
ufs/ufshcd.h
# Filename to store the define for the header in $(1); this is only consumed by
# the rule below that concatenates all of these together.

25
scripts/conftest/conftest.sh
View File

@@ -7399,6 +7399,31 @@ compile_test() {
compile_check_conftest "$CODE" "NV_TTY_OPERATIONS_STRUCT_WRITE_HAS_U8_PTR_ARG" "" "functions"
;;
ufs_hba_variant_ops_suspend_has_status_arg)
#
# Determine if the 'suspend' function for the
# 'struct ufs_hba_variant_ops' has a 'status' argument.
#
# In Linux v5.16, commit 9561f58442e4 ("scsi: ufs:
# mediatek: Support vops pre suspend to disable auto-hibern8")
# updated the arguments to the 'suspend' function of the
# 'struct ufs_hba_variant_ops'.
#
CODE="
#if defined(NV_UFS_UFSHCD_H_PRESENT)
#include <ufs/ufshcd.h>
#else
#include \"../drivers/scsi/ufs/ufshcd.h\"
#endif
void conftest_ufs_hba_variant_ops_suspend_has_status_arg(
struct ufs_hba_variant_ops *ops) {
int (*fn)(struct ufs_hba *, enum ufs_pm_op,
enum ufs_notify_change_status) = ops->suspend;
}"
compile_check_conftest "$CODE" "NV_UFS_HBA_VARIANT_OPS_SUSPEND_HAS_STATUS_ARG" "" "types"
;;
v4l2_async_connection_struct_present)
#
# Determine if the 'struct v4l2_async_connection' present or not.