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SBC-4, Table 13 allows READ CAPACITY for all PR types.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Link: https://lore.kernel.org/r/ad095388dbc550c5b199a1dfa71bcbfc575a7abe.1701272679.git.bcodding@redhat.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In fnic_init_module() exists redundant check for return value from
fnic_debugfs_init(), because at moment it only can return zero. It make
sense to process theoretical vmalloc() failure.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 9730ddfb123d ("scsi: fnic: remove redundant assignment of variable rc")
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Link: https://lore.kernel.org/r/20231128111008.2280507-1-artem.chernyshev@red-soft.ru
Reviewed-by: Karan Tilak Kumar <kartilak@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The Message Signaled Interrupts (MSI) support has been introduced in UFSHCI
version 4.0 (JESD223E). The MSI is the recommended interrupt approach for
MCQ. If choose to use MSI, in UFS DT, we need to provide msi-parent
property that point to the hardware entity which serves as the MSI
controller for this UFS controller.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Ziqi Chen <quic_ziqichen@quicinc.com>
Link: https://lore.kernel.org/r/1701144469-1018-1-git-send-email-quic_ziqichen@quicinc.com
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Driver update from ching Huang <ching2048@areca.com.tw>.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Signed-off-by: ching Huang <ching2048@areca.com.tw>
Link: https://lore.kernel.org/r/514898a472dfdf0502afe27d127ed5145a1fb915.camel@areca.com.tw
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add support for Areca RAID controllers with PCI device IDs 1883 and 1886.
Signed-off-by: ching Huang <ching2048@areca.com.tw>
Link: https://lore.kernel.org/r/7732e743eaad57681b1552eec9c6a86c76dbe459.camel@areca.com.tw
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add support for new Areca RAID controller ARC-1688
Signed-off-by: ching Huang <ching2048@areca.com.tw>
Link: https://lore.kernel.org/r/110bdc873497d3d5e090b908fb159b6155bb3a2b.camel@areca.com.tw
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Sparse static analysis tool generates a warning with this message "Using
plain integer as NULL pointer". Fix it.
Signed-off-by: Abhinav Singh <singhabhinav9051571833@gmail.com>
Link: https://lore.kernel.org/r/20231109215049.1466431-1-singhabhinav9051571833@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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controllers"
Sumit Saxena <sumit.saxena@broadcom.com> says:
These patches add support for Broadcom's SAS5116 IO/RAID controllers
in mpi3mr driver.
Link: https://lore.kernel.org/r/20231123160132.4155-1-sumit.saxena@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Update driver version to 8.5.0.0.50.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Link: https://lore.kernel.org/r/20231123160132.4155-6-sumit.saxena@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Inform controller firmware that driver supports status reply descriptor.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Link: https://lore.kernel.org/r/20231123160132.4155-5-sumit.saxena@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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SAS5116 controllers supports maximum 48 physical PHYs. Modify driver to
accommodate up to 64 PHYs (though current need is to support 48 PHYs).
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Link: https://lore.kernel.org/r/20231123160132.4155-4-sumit.saxena@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add PCI IDs checks for the cases where SAS5116 diverges from SAS4116 in
behavior.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Link: https://lore.kernel.org/r/20231123160132.4155-3-sumit.saxena@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add support for Broadcom's SAS5116 IO/RAID controllers PCI IDs.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Link: https://lore.kernel.org/r/20231123160132.4155-2-sumit.saxena@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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ufshcd_prepare_utp_scsi_cmd_upiu() only uses the lowest eight bits of
lrbp->task_tag. Issue a runtime warning if this results in truncation.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20231115193359.2262044-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Calling scsi_eh_scmd_add() may cause the error handler never to be woken up
because this may result in shost->host_failed to become larger than
scsi_host_busy(shost). Hence complain if scsi_eh_scmd_add() is called after
SCMD_STATE_INFLIGHT has been cleared.
Cc: Hannes Reinecke <hare@suse.de>
Cc: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Cc: Mike Christie <michael.christie@oracle.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20231115193343.2262013-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fix the following sparse warning:
drivers/scsi/bfa/bfad_bsg.c:2553:50: sparse: sparse: incorrect type in initializer (different base types)
Fixes: 2e5a6c3baccd ("scsi: bfa: Convert bfad_reset_sdev_bflags() from a macro into a function")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202311031255.lmSPisIk-lkp@intel.com/
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20231115193338.2261972-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The UFS driver has two driver-specific fault injection mechanisms
(trigger_eh and timeout). Each fault injection configuration can only be
specified by a module parameter and cannot be reconfigured without
reloading the driver. Also, each configuration is common to all HBAs.
This change adds the following subdirectories for each UFS HBA when
debugfs is enabled:
/sys/kernel/debug/ufshcd/<HBA>/timeout_inject
/sys/kernel/debug/ufshcd/<HBA>/trigger_eh_inject
Each fault injection attribute can be dynamically set per HBA by a
corresponding file in these directories.
This is tested with QEMU UFS devices.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Link: https://lore.kernel.org/r/20231118124443.1007116-1-akinobu.mita@gmail.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Change the maintainer of MediaTek UFS hooks to Peter Wang.
The original maintainer, Stanley Chu, who could previously be reached at
stanley.chu@mediatek.com, has left MediaTek. Update the email address
accordingly and list Stanley as reviewer.
Cc: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Signed-off-by: Stanley Jhu <chu.stanley@gmail.com>
Link: https://lore.kernel.org/r/20231117103810.527-1-chu.stanley@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The mpt3sas_ctl_exit() should be called after communication with the
controller stops but currently it may cause false warnings about not
released memory. Fix this by letting mpt3sas_ctl_exit() handle misc driver
release per driver and release DMA in mpt3sas_ctl_release() per ioc.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Link: https://lore.kernel.org/r/20231019153706.7967-1-thenzl@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Having UFS power info available in sysfs makes it easier to tell the state
of the link during runtime considering we have a bunch of power saving
features and various combinations for backward compatibility.
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Can Guo <quic_cang@quicinc.com>
Link: https://lore.kernel.org/r/1698890324-7374-1-git-send-email-quic_cang@quicinc.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Justin Tee <justintee8345@gmail.com> says:
Update lpfc to revision 14.2.0.16
This patch set contains a user input range check correction, static
code analyzer fixes, refactoring of clean up code, and logging
enhancements.
The patches were cut against Martin's 6.7/scsi-queue tree.
Link: https://lore.kernel.org/r/20231031191224.150862-1-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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A series of patches from Justin Stitt.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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James Seo <james@equiv.tech> says:
Commit df8fc4e934c1 ("kbuild: Enable -fstrict-flex-arrays=3") has
resulted in the only arrays that UBSAN_BOUNDS considers unbounded
being trailing arrays declared with [] as the last member of a
struct. Unbounded trailing arrays declared with [1] are common in
mpt3sas, which is causing spurious warnings to appear in some
situations, e.g. when more than one physical disk is connected:
UBSAN: array-index-out-of-bounds in drivers/scsi/mpt3sas/mpt3sas_scsih.c:6810:36
index 1 is out of range for type 'MPI2_SAS_IO_UNIT0_PHY_DATA [1]'
which relates to this unbounded array access:
port_id = sas_iounit_pg0->PhyData[i].Port;
and is just one example of 10 similar warnings currently occurring for
me during boot.
This series converts most trailing arrays declared with [1] in mptsas
into proper C99 flexible array members. Those that are not unbounded
and really are fixed-length arrays of length 1 are left alone.
I didn't find any conversions that required further source edits
besides changing [1] to [], and everything seems to work with my
SAS2008-based add-in card, but please look things over in case I
missed something subtle.
Rounding out the series are some opportunistic cleanups.
The only dependency is that patch 7 ("Use struct_size() for struct
size calculations") depends on patches 3-5.
Link: https://lore.kernel.org/r/20230806170604.16143-1-james@equiv.tech
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Update copyrights to 2023 for files modified in the 14.2.0.16 patch set.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231031191224.150862-10-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Update lpfc version to 14.2.0.16.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231031191224.150862-9-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Typically, debugging discovery issues requires the ndlp reference count,
nlp flags, transport flags, and the io tag for root cause analysis.
Modify important discovery log messages to include one or more of these
attributes to aid in debugging and support.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231031191224.150862-8-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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A lot of repeated clean up code exists when freeing mailbox commands in
lpfc_mem_free_all().
Introduce a lpfc_mem_free_sli_mbox() helper routine to refactor the
copy-paste code. Additionally, reinitialize the mailbox command structure
context pointers to NULL in lpfc_sli4_mbox_cmd_free().
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231031191224.150862-7-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add a check in lpfc_poll_eratt() when the driver is unloading. There is no
point to check for error attention events if the driver is rmmod'ed.
If the driver is reloaded, as part of insmod initialization, then a fresh
reset is always asserted to start clean and free of error attention events.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231031191224.150862-6-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In lpfc_check_nlp_post_devloss(), retaking of the ndlp lock in the if
statement is useless because the very next line unlocks. Simply return to
avoid relocking.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231031191224.150862-5-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Smatch called out a warning for null checking a ptr that is assigned by
list_entry(). list_entry() does not return null and, if the list is empty,
can return an invalid ptr. Thus, the !psrp check does not execute properly.
drivers/scsi/lpfc/lpfc_els.c:2133 lpfc_cmpl_els_plogi()
warn: list_entry() does not return NULL 'prsp'
Replace list_entry() with list_get_first(), which does a list_empty() check
before returning the first entry.
Fixes: a3c3c0a806f1 ("scsi: lpfc: Validate ELS LS_ACC completion payload")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/linux-scsi/01b7568f-4ab4-4d56-bfa6-9ecc5fc261fe@moroto.mountain/
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231031191224.150862-4-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Because file_name and phba->ModelName are both declared a size 80 bytes,
the extra ".grp" file extension could cause an overflow into file_name.
Define a ELX_FW_NAME_SIZE macro with value 84. 84 incorporates the 4 extra
characters from ".grp". file_name is changed to be declared as a char and
initialized to zeros i.e. null chars.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231031191224.150862-3-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Currently, the ras_fwlog_func sysfs parameter allows users to input a value
greater than three when selecting a PCI function to enable RAS fw logging
feature.
The user's input is sanity checked in lpfc_sli4_ras_init(), but allowing an
input greater than three doesn't make sense because the max number of ports
per HBA is four.
Change the allowable range from [0, 7] to [0, 3].
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231031191224.150862-2-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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strncpy() is deprecated for use on NUL-terminated destination strings [1]
and as such we should prefer more robust and less ambiguous string
interfaces.
To keep node->current_state_name and node->prev_state_name NUL-padded and
NUL-terminated let's use strscpy_pad() as this implicitly provides both.
For the swap between the two, a simple memcpy() will suffice.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231026-strncpy-drivers-scsi-elx-libefc-efc_node-h-v2-1-5c083d0c13f4@google.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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strncpy() is deprecated for use on NUL-terminated destination strings [1]
and as such we should prefer more robust and less ambiguous string
interfaces.
'hw' is kzalloc'd just before this string assignment:
| hw = kzalloc(sizeof(struct csio_hw), GFP_KERNEL);
... which means any NUL-padding is redundant.
Since CSIO_DRV_VERSION is a small string literal (smaller than
sizeof(dest)):
... there is functionally no change in this swap from strncpy() to
strscpy(). Nonetheless, let's make the change for robustness' sake -- as
it will ensure that drv_version is _always_ NUL-terminated.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231023-strncpy-drivers-scsi-csiostor-csio_init-c-v1-1-5ea445b56864@google.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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strncpy() is deprecated for use on NUL-terminated destination strings [1]
and as such we should prefer more robust and less ambiguous string
interfaces.
These labels get copied out to the user so lets make sure they are
NUL-terminated and NUL-padded.
vparams is already memset to 0 so we don't need to do any NUL-padding (like
what strncpy() is doing).
Considering the above, a suitable replacement is strscpy() [2] due to the
fact that it guarantees NUL-termination on the destination buffer without
unnecessarily NUL-padding.
Let's also opt to use the more idiomatic strscpy() usage of: (dest, src,
sizeof(dest)) as this more closely ties the destination buffer to the
length.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231023-strncpy-drivers-scsi-ch-c-v1-1-dc67ba8075a3@google.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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strncpy() is deprecated for use on NUL-terminated destination strings [1]
and as such we should prefer more robust and less ambiguous string
interfaces.
We expect hba->chip_num to be NUL-terminated based on its usage with format
strings:
snprintf(fc_host_symbolic_name(lport->host), 256,
"%s (QLogic %s) v%s over %s",
BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION,
interface->netdev->name);
Moreover, NUL-padding is not required as hba is zero-allocated from its
callsite:
hba = kzalloc(sizeof(*hba), GFP_KERNEL);
Considering the above, a suitable replacement is strscpy() [2] due to the
fact that it guarantees NUL-termination on the destination buffer without
unnecessarily NUL-padding.
Regarding stats_addr->version, I've opted to also use strscpy() instead of
strscpy_pad() as I typically see these XYZ_get_strings() pass
zero-allocated data. I couldn't track all of where bnx2fc_ulp_get_stats()
is used and if required, we could opt for strscpy_pad().
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231023-strncpy-drivers-scsi-bnx2fc-bnx2fc_fcoe-c-v1-1-a3736943cde2@google.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
This pattern of strncpy(dest, src, strlen(src)) is extremely bug-prone.
This pattern basically never results in NUL-terminated destination
strings unless `dest` was zero-initialized. The current implementation
may be accidentally correct as tw_dev is zero-allocated via:
host = scsi_host_alloc(&driver_template, sizeof(TW_Device_Extension));
...
tw_dev = shost_priv(host);
... wherein scsi_host_alloc() zero-allocates host:
shost = kzalloc(sizeof(struct Scsi_Host) + privsize, GFP_KERNEL);
Also, further suggesting this change is worthwhile is another strscpy()
usage in 3w-9xxx.c:
strscpy(tw_dev->tw_compat_info.driver_version, TW_DRIVER_VERSION,
sizeof(tw_dev->tw_compat_info.driver_version));
Considering the above, a suitable replacement is strscpy() [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Let's not be accidentally correct, let's be definitely correct.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231023-strncpy-drivers-scsi-3w-sas-c-v1-1-4c40a1e99dfc@google.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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mpt3sas_scsih.c:_scsih_scan_for_devices_after_reset() allocates and fetches
a MPI2_CONFIG_PAGE_RAID_VOL_0 struct (Mpi2RaidVolPage0_t) and a
MPI2_CONFIG_PAGE_RAID_VOL_1 struct (Mpi2RaidVolPage1_t), but does not
include the terminal flexible array members in the struct size
calculations, fetch those members, or otherwise use those members in any
way.
These dynamic allocations can be replaced with local variables.
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-13-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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mpt3sas_base.c:_base_update_diag_trigger_pages() allocates and fetches a
MPI2_CONFIG_PAGE_SASIOUNIT_1 struct (Mpi2SasIOUnitPage_t), but does not
include the terminal flexible array member in the struct size calculation,
fetch that member, or otherwise use that member in any way.
This dynamic allocation can be replaced with a local variable.
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-12-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Change "TIGGER" to "TRIGGER" in struct names and typedefs.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-11-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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May reduce confusion for users of MPI2_CONFIG_PAGE_IO_UNIT_3::GPIOVal[].
Fixes: a1c4d7741323 ("scsi: mpt3sas: Replace unnecessary dynamic allocation with a static one")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-10-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The per-adapter struct (struct MPT3SAS_ADAPTER) contains a
MPI2_CONFIG_PAGE_IO_UNIT_8 (Mpi2IOUnitPage8_t) iounit_pg8 member that is
populated by mpt3sas_base.c:_base_static_config_pages().
As the name of that function indicates, the iounit_pg8 member represents a
static configuration page data structure that rarely changes, and is among
several such static config pages that are currently being fetched once per
adapter per init (or reset) and copied to the per-adapter struct for later
use.
However, unlike the other static config pages, the iounit_pg8 member is
never actually used outside of _base_static_config_pages(). Also,
Mpi2IOUnitPage8_t has a flexible array member, making its presence in the
_middle_ of the per-adapter struct rather strange.
Remove this member from the per-adapter struct and fix up the portion of
_base_static_config_pages() that uses it.
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-9-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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After converting terminal variable arrays into flexible array members, use
the bounds-checking struct_size() helper when possible to avoid open-coded
arithmetic struct size calculations.
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-8-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This terminal 1-length variable array can be directly converted into a C99
flexible array member.
As all users of MPI26_CONFIG_PAGE_PIOUNIT_1 (Mpi26PCIeIOUnitPage1_t) do not
use PhyData[], no further source changes are required to accommodate its
reduced sizeof():
- mpt3sas_config.c:mpt3sas_config_get_pcie_iounit_pg1() fetches a
Mpi26PCIeIOUnitPage1_t into a caller-provided buffer, and may fetch
and write PhyData[] into that buffer depending on its sz argument.
It has one caller:
- mpt3sas_base.c:_base_assign_fw_reported_qd() passes
sizeof(Mpi26PCIeIOUnitPage1_t) as sz, but does not use PhyData[].
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-7-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This terminal 1-length variable array can be directly converted into a C99
flexible array member.
As all users of MPI2_CONFIG_PAGE_SASIOUNIT_1 (Mpi2SasIOUnitPage1_t) either
calculate its size without depending on its sizeof() or do not use
PhyData[], no further source changes are required:
- mpt3sas_config.c:mpt3sas_config_get_sas_iounit_pg1() fetches a
Mpi2SasIOUnitPage1_t into a caller-provided buffer, and may fetch and
write PhyData[] into that buffer depending on its sz argument. Its
callers:
- mpt3sas_base.c:_base_assign_fw_reported_qd() passes
sizeof(Mpi2SasIOUnitPage1_t) as sz, but does not use PhyData[].
- mpt3sas_base.c:mpt3sas_base_update_missing_delay(),
mpt3sas_scsih.c:_scsih_sas_host_add(),
mpt3sas_transport.c:_transport_phy_enable(), and
mpt3sas_transport.c:_transport_phy_speed() all calculate sz
independently of sizeof(Mpi2SasIOUnitPage1_t) and allocate a
suitable buffer before calling mpt3sas_config_get_sas_iounit_pg1()
and using PhyData[].
- mpt3sas_config.c:mpt3sas_config_set_sas_iounit_pg1() writes the contents
of a caller-provided buffer to the adapter, with the size of the write
depending on its sz argument. Its callers:
- mpt3sas_base.c:mpt3sas_base_update_missing_delay(),
mpt3sas_transport.c:_transport_phy_enable(), and
mpt3sas_transport.c:_transport_phy_speed() have all previously
called mpt3sas_config_get_sas_iounit_pg1() to obtain a
Mpi2SasIOUnitPage1_t, and are merely writing back this same
struct with the same previously calculated sz.
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-6-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This terminal 1-length variable array can be directly converted into a C99
flexible array member.
As all users of MPI2_CONFIG_PAGE_SASIOUNIT_0 (Mpi2SasIOUnitPage0_t) either
calculate its size without depending on its sizeof() or do not use
PhyData[], no further source changes are required:
- mpt3sas_config.c:mpt3sas_config_get_number_hba_phys() fetches a
Mpi2SasIOUnitPage0_t for itself, but does not use PhyData[].
- mpt3sas_config.c:mpt3sas_config_get_sas_iounit_pg0() fetches a
Mpi2SasIOUnitPage0_t into a caller-provided buffer, and may fetch and
write PhyData[] into that buffer depending on its sz argument. Its
callers:
- mpt3sas_scsih.c:_scsih_update_vphys_after_reset(),
mpt3sas_scsih.c:_scsih_get_port_table_after_reset(),
mpt3sas_scsih.c:_scsih_sas_host_refresh(),
mpt3sas_scsih.c:_scsih_sas_host_add(), and
mpt3sas_transport.c:_transport_phy_enable() all calculate sz
independently of sizeof(Mpi2SasIOUnitPage0_t) and allocate a
suitable buffer before calling mpt3sas_config_get_sas_iounit_pg0()
and using PhyData[].
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-5-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This terminal 1-length variable array can be directly converted into a C99
flexible array member.
As all users of MPI2_CONFIG_PAGE_RAID_VOL_0 (Mpi2RaidVolPage0_t) either
calculate its size without depending on its sizeof() or do not use
PhysDisk[], no further source changes are required:
- mpt3sas_config.c:mpt3sas_config_get_number_pds() fetches a
Mpi2RaidVolPage0_t for itself, but does not use PhysDisk[].
- mpt3sas_config.c:mpt3sas_config_get_raid_volume_pg0() fetches a
Mpi2RaidVolPage0_t into a caller-provided buffer, and may fetch and
write PhysDisk[] into that buffer depending on its sz argument. Its
callers:
- mpt3sas_scsih.c:scsih_get_resync(),
mpt3sas_scsih.c:scsih_get_state(),
mpt3sas_scsih.c:_scsih_search_responding_raid_devices(), and
mpt3sas_scsih.c:_scsih_scan_for_devices_after_reset() all pass
sizeof(Mpi2RaidVolPage0_t) as sz, but do not use PhysDisk[].
- mpt3sas_scsih.c:_scsih_get_volume_capabilities() and
mpt3sas_warpdrive.c:mpt3sas_init_warpdrive_properties()
both calculate sz independently of sizeof(Mpi2RaidVolPage0_t)
and allocate a suitable buffer before calling
mpt3sas_config_get_raid_volume_pg0() and using PhysDisk[].
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-4-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This terminal 1-length variable array can be directly converted into a C99
flexible array member.
As all users of MPI2_CONFIG_PAGE_IO_UNIT_8 (Mpi2IOUnitPage8_t) do not use
Sensor[], no further source changes are required to accommodate its reduced
sizeof():
- mpt3sas_config.c:mpt3sas_config_get_iounit_pg8() fetches a
Mpi2IOUnitPage8_t into a caller-provided buffer, assuming
sizeof(Mpi2IOUnitPage8_t) as the buffer size. It has one caller:
- mpt3sas_base.c:_base_static_config_pages() passes the address of the
Mpi2IOUnitPage8_t iounit_pg8 member of the per-adapter struct (struct
MPT3SAS_ADAPTER *ioc) as the buffer. The assumed buffer size is
therefore correct.
However, the only subsequent use in mpt3sas of the thus populated
ioc->iounit_pg8 is a little further on in the same function, and this
use does not involve ioc->iounit_pg8.Sensor[].
Note that iounit_pg8 occurs in the middle of the per-adapter struct,
not at the end. The per-adapter struct is extensively used throughout
mpt3sas even if its iounit_pg8 member isn't, resulting in an
especially large amount of noise when comparing binary changes
attributable to this commit.
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-3-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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These terminal 1-length variable arrays can be directly converted into C99
flexible array members without any binary changes.
In most cases, they belong to unused structs, or to structs used only by
unused code. The remaining few coincidentally have their sizes calculated
in roundabout ways that do not depend on the sizeof() their structs.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-2-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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