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2020-05-02RDMA/efa: Count admin commands errorsGal Pressman3-2/+8
Add a new stat that counts admin commands failures, which might help when debugging different issues. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Daniel Kranzdorf <[email protected]> Reviewed-by: Yossi Leybovich <[email protected]> Signed-off-by: Gal Pressman <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-05-02RDMA/efa: Count mmap failuresGal Pressman2-3/+9
Add a new stat that counts mmap failures, which might help when debugging different issues. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Firas JahJah <[email protected]> Reviewed-by: Yossi Leybovich <[email protected]> Signed-off-by: Gal Pressman <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-05-02RDMA/efa: Report create CQ error counterGal Pressman1-0/+2
Create CQ errors are already being counted, report them along all other counters. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Firas JahJah <[email protected]> Reviewed-by: Yossi Leybovich <[email protected]> Signed-off-by: Gal Pressman <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-05-02RDMA/mlx5: Set lag tx affinity according to slaveMaor Gottlieb5-26/+71
The patch sets the lag tx affinity of the data QPs and the GSI QPs according to the LAG xmit slave. For GSI QPs, in case the link layer is Ethenet (RoCE) we create two GSI QPs, one for each physical port. When the driver selects the GSI QP, it will consider the port affinity result. For connected QPs, the driver sets the affinity of the xmit slave. The above, ensures that RC QP and it's corresponding GSI QP will transmit from the same physical port. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Maor Gottlieb <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-05-02RDMA/mlx5: Refactor affinity related codeMaor Gottlieb1-37/+53
Move affinity related code in modify qp to function. It's a preparation for next patch the extend the affinity calculation to consider the xmit slave. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Maor Gottlieb <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-05-02RDMA/core: Get xmit slave for LAGMaor Gottlieb1-18/+43
Add a call to rdma_lag_get_ah_roce_slave() when the address handle is created. Lower driver can use it to select the QP's affinity port. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Maor Gottlieb <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-05-02RDMA/core: Add LAG functionalityMaor Gottlieb2-1/+137
Add support to get the RoCE LAG xmit slave by building skb of the RoCE packet and call to master_get_xmit_slave. If driver wants to get the slave assume all slaves are available, then need to set RDMA_LAG_FLAGS_HASH_ALL_SLAVES in flags. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Maor Gottlieb <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-05-02RDMA: Group create AH arguments in structMaor Gottlieb21-45/+59
Following patch adds additional argument to the create AH function, so it make sense to group ah_attr and flags arguments in struct. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Maor Gottlieb <[email protected]> Acked-by: Devesh Sharma <[email protected]> Acked-by: Gal Pressman <[email protected]> Acked-by: Weihang Li <[email protected]> Reviewed-by: Jason Gunthorpe <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Verify that QP is created with RQ or SQAharon Landau1-0/+2
RAW packet QP and underlay QP must be created with either RQ or SQ, check that. Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Aharon Landau <[email protected]> Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Consolidate into special function all create QP callsLeon Romanovsky1-36/+49
Finish separation to blocks of mlx5_ib_create_qp() functions, so all internal create QP implementation are located in one place. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Remove redundant destroy QP callLeon Romanovsky1-4/+1
After major refactoring in create QP flow, it is no needed to call to destroy QP in XRC_TGT flow. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Copy response to the user in one placeLeon Romanovsky1-61/+52
Update all the places in create QP flows to copy response to the user in one place. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Handle udate outlen checks in one placeLeon Romanovsky1-18/+30
Place in one function all udata size checks. This will allow us move ib_copy_to_udata() in general place and ensure that it will be performed after call to the FW. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Promote RSS RAW QP flags check to higher levelLeon Romanovsky1-8/+10
Move check that user didn't supplied RSS RAW QP unsupported command flags to the function that checks all such flags. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Group all create QP parameters to simplify in-kernel interfacesLeon Romanovsky1-67/+81
The amount of parameters passed in and out between internal mlx5 create QP functions is too large to easily follow the flow. Change it by grouping all create QP parameter into one structure. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Reduce amount of duplication in QP destroyLeon Romanovsky1-39/+31
Delete both PD argument and checks if udata was provided, in favour of unified destroy QP functions. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Separate to user/kernel create QP flowsLeon Romanovsky1-49/+156
The kernel and user create QP flows have very little common code, separate them to simplify the future work of creating per-type create_*_qp() functions. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Separate XRC_TGT QP creation from common flowLeon Romanovsky1-52/+106
XRC_TGT QP doesn't fail into kernel or user flow separation. It is initiated by the user, but is created through in-kernel verbs flow and doesn't have PD and udata in similar way to kernel QPs. So let's separate creation of that QP type from the common flow. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Globally parse DEVX UIDLeon Romanovsky1-24/+27
Remove duplication in parsing of DEVX UID. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Delete impossible inlen checkLeon Romanovsky1-7/+0
The inlen is set to be above zero in all flows before and can't be negative at this stage. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Rely on existence of udata to separate kernel/user flowsLeon Romanovsky2-27/+10
Instead of keeping special field to separate kernel/user create/destroy flows, rely on existence of udata pointer. All allocation flows are using kzalloc() and leave uninitialized pointers as NULL which makes MLX5_QP_EMPTY and MLX5_QP_KERNEL flows to be the same. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Remove second user copy in create_user_qpLeon Romanovsky1-19/+15
Combine copy_from_user() from create_user_qp() and general code. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Combine copy of create QP command in RSS RAW QPLeon Romanovsky1-74/+82
Change the create QP flow to handle all copy_from_user() operations in one place. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Promote RSS RAW QP attribute check in higher levelLeon Romanovsky1-3/+3
Perform check of attributes of RAW PACKET QP in separate function. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Store QP type in the vendor QP structureLeon Romanovsky3-73/+74
QP type is stored in the IB/core QP struct, but it doesn't have all the needed information, like internal QP type used in the driver itself. Update mlx5_ib to have cached QP type which includes both IBTA and Mellanox specific one. Such change allows us to make even further cleanup of QP creation flow. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-30RDMA/mlx5: Delete unsupported QP typesLeon Romanovsky1-11/+1
There is no need to explicitly check unsupported QP types, rely on "default" keyword in switch-case to catch them. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28Merge branch 'mlx5_ib_qp_refactor_1' into rdma.git for-nextJason Gunthorpe16-631/+1255
Leon Romanovsky says: ==================== This is first part of series which tries to return some sanity to mlx5_ib_create_qp() function. Such refactoring is required to make extension of that function with less worries of breaking driver. Extra goal of such refactoring is to ensure that QP is allocated at the beginning of function and released at the end. It will allow us to move QP allocation to be under IB/core responsibility. ==================== Based on the mlx5-next branch at git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux Due to dependencies * branch 'mlx5_ib_qp_refactor_1': (66 commits) RDMA/mlx5: Process all vendor flags in one place RDMA/mlx5: Return all configured create flags through query QP RDMA/mlx5: Change scatter CQE flag to be set like other vendor flags RDMA/mlx5: Use flags_en mechanism to mark QP created with WQE signature RDMA/mlx5: Process create QP flags in one place RDMA/mlx5: Delete create QP flags obfuscation RDMA/mlx5: Initial separation of RAW_PACKET QP from common flow RDMA/mlx5: Remove second copy from user for non RSS RAW QPs RDMA/mlx5: Move DRIVER QP flags check into separate function RDMA/mlx5: Update all DRIVER QP places to use QP subtype RDMA/mlx5: Split scatter CQE configuration for DCT QP RDMA/mlx5: Separate create QP flows to be based on type RDMA/mlx5: Set QP subtype immediately when it is known RDMA/mlx5: Avoid setting redundant NULL for XRC QPs RDMA/mlx5: Prepare QP allocation for future removal RDMA/mlx5: Perform check if QP creation flow is valid RDMA/mlx5: Delete impossible GSI port check RDMA/mlx5: Organize QP types checks in one place Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Process all vendor flags in one placeLeon Romanovsky1-85/+71
Check that vendor flags provided through ucmd are valid. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Return all configured create flags through query QPLeon Romanovsky2-12/+2
The "flags" field in struct mlx5_ib_qp contains all UAPI flags configured at the create QP stage. Return all the data as is without masking. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Change scatter CQE flag to be set like other vendor flagsLeon Romanovsky2-8/+10
In similar way to wqe_sig, the scat_cqe was treated differently from other create QP vendor flags. Change it to be similar to other flags and use flags_en mechanism. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Use flags_en mechanism to mark QP created with WQE signatureLeon Romanovsky3-16/+23
MLX5_QP_FLAG_SIGNATURE is exposed to the users but in the kernel the create_qp flow treated it differently from other MLX5_QP_FLAG_*s. Fix it by ditching wq_sig boolean variable and use general flag_en mechanism. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Process create QP flags in one placeLeon Romanovsky1-99/+101
create_flags is checked in too many places and scattered across all the code, consolidate all the checks inside one function, so we will be easily see the flow. As part of such change, delete unreachable code, because IB/core is responsible sanitize the input. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Delete create QP flags obfuscationLeon Romanovsky5-64/+47
There is no point in redefinition of stable and exposed to users create flags. Their values won't be changed and it is equal to used by the mlx5. Delete the mlx5 definitions and use IB/core fields. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Initial separation of RAW_PACKET QP from common flowLeon Romanovsky1-5/+17
Create initial function for IB_QPT_RAW_PACKET flow. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Remove second copy from user for non RSS RAW QPsLeon Romanovsky1-29/+27
Change the common code to use already copied user command buffer. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Move DRIVER QP flags check into separate functionLeon Romanovsky1-48/+43
Perform validation of DRIVER QP in relevant function. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Update all DRIVER QP places to use QP subtypeLeon Romanovsky1-33/+15
Instead of overwriting QP init attributes with driver QP subtype, use that subtype directly. This change will allow us to remove logic which cached QP init attributes. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Split scatter CQE configuration for DCT QPLeon Romanovsky1-9/+6
DCT QPs have separate creation flow and can be easily extracted from configure_responder_scat_cqe(), this makes both updated functions more clear. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Separate create QP flows to be based on typeLeon Romanovsky1-15/+39
Move driver QP creation flow to separate functions to simplify the create_qp() and allow future separation of create_qp_common() to subtypes. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Set QP subtype immediately when it is knownLeon Romanovsky1-4/+2
There is no need to delay QP subtype assignment to the end of the create_qp() function and it is better to move it to be immediately after it is checked so we would be able to rewrite later checks to be based on it and not on over-written struct ib_qp_init_attr. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Avoid setting redundant NULL for XRC QPsLeon Romanovsky1-7/+1
There is no need to set NULL in recv_cq and send_cq, they are already set to NULL by the IB/core logic. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Prepare QP allocation for future removalLeon Romanovsky1-25/+20
Unify the QP memory allocation across different paths, so it will be in one place. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Perform check if QP creation flow is validLeon Romanovsky1-67/+61
Fast check that kernel and user flows provides enough data to create QP. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Delete impossible GSI port checkLeon Romanovsky1-9/+0
GSI QP is created in the kernel with very strict parameters, there is no possible way that port number will be wrong in such flow. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28RDMA/mlx5: Organize QP types checks in one placeLeon Romanovsky1-61/+68
Perform check if QP type is supported in one place at the beginning of the create_qp function instead of current implementation with checks buried inside of the code. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-28net/mlx5: Refactor imm_inval_pkey field in cqe structRaed Salem1-4/+4
The imm_inval_pkey field can hold four different types of data, depends on the usage, the data could be one of the below: - Immediate field of the received message - Invalidate rkey - Pkey of the packet - Flow table metadata Current implementation doesn't reflect the intended usage of the field at usage time. Reflect the different types by replace this field with a union, modify code where this field is used to reflect its intended usage. Signed-off-by: Raed Salem <[email protected]> Reviewed-by: Huy Nguyen <[email protected]> Reviewed-by: Tariq Toukan <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
2020-04-28net/mlx5: Use aligned variable while allocating ICM memoryErez Shitrit1-1/+1
The alignment value is part of the input structure, so use it and spare extra memory allocation when is not needed. Now, using the new ability when allocating icm for Direct-Rule insertion. Signed-off-by: Ariel Levkovich <[email protected]> Signed-off-by: Erez Shitrit <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
2020-04-28net/mlx5: Add support for COPY steering actionHuy Nguyen1-2/+2
Add COPY type to modify_header action. IPsec feature is the first feature that needs COPY steering action. Signed-off-by: Huy Nguyen <[email protected]> Signed-off-by: Raed Salem <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]> Acked-by: Leon Romanovsky <[email protected]>
2020-04-24RDMA/core: Fix race between destroy and release FD objectLeon Romanovsky1-1/+1
The call to ->lookup_put() was too early and it caused an unlock of the read/write protection of the uobject after the FD was put. This allows a race: CPU1 CPU2 rdma_lookup_put_uobject() lookup_put_fd_uobject() fput() fput() uverbs_uobject_fd_release() WARN_ON(uverbs_try_lock_object(uobj, UVERBS_LOOKUP_WRITE)); atomic_dec(usecnt) Fix the code by changing the order, first unlock and call to ->lookup_put() after that. Fixes: 3832125624b7 ("IB/core: Add support for idr types") Link: https://lore.kernel.org/r/[email protected] Suggested-by: Jason Gunthorpe <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-04-24IB/rdmavt: Always return ERR_PTR from rvt_create_mmap_info()Sudip Mukherjee4-8/+8
The commit below modified rvt_create_mmap_info() to return ERR_PTR's but didn't update the callers to handle them. Modify rvt_create_mmap_info() to only return ERR_PTR and fix all error checking after rvt_create_mmap_info() was called. Fixes: ff23dfa13457 ("IB: Pass only ib_udata in function prototypes") Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] [5.4+] Tested-by: Mike Marciniszyn <[email protected]> Acked-by: Mike Marciniszyn <[email protected]> Signed-off-by: Sudip Mukherjee <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
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